All UK calculators
Browse all 205 free UK calculators by topic: salary and tax, mortgages, savings, pensions, family finances, business, energy and motoring costs.
Mortgage repayment calculator UK
See what your home loan could cost each month.
MortgagesInterest-only mortgage calculator UK
Estimate interest payments and the capital still due.
MortgagesMortgage overpayment calculator UK
See the effect of a fixed extra monthly mortgage payment.
MortgagesLoan-to-value calculator UK: mortgage LTV
Find the share of your property funded by the mortgage.
MortgagesMortgage borrowing multiple calculator UK
Explore a borrowing limit from household income and a chosen lender multiple.
MortgagesMortgage repayment term calculator UK
Find the repayment time implied by a loan, fixed rate and monthly payment.
MortgagesOutstanding mortgage balance calculator UK
Estimate a repayment mortgage balance after a chosen number of payments.
MortgagesRemortgage fee break-even calculator UK
Work out how long monthly payment savings take to recover switching costs.
MortgagesMortgage rate change impact calculator UK
Compare payments on the same balance and remaining term at two interest rates.
MortgagesMortgage deal fee comparison calculator UK
Compare payments and fees over the deal periods of two mortgage offers.
MortgagesOffset mortgage interest saving calculator UK
Estimate initial interest avoided by offsetting eligible savings against a mortgage.
MortgagesLump-sum mortgage overpayment calculator UK
Model a one-off capital payment while keeping the regular mortgage payment unchanged.
MortgagesDaily mortgage interest calculator UK
Estimate interest on a fixed mortgage balance over a specified number of days.
MortgagesMortgage lifetime cost with fees calculator UK
Add separately paid fees to the full repayment cost of a constant-rate mortgage.
MortgagesMortgage deposit shortfall calculator UK
Find the extra deposit needed to reach a chosen mortgage LTV band.
MortgagesRent versus buy cash-flow comparison calculator UK
Compare monthly housing cash outgoings with a repayment mortgage and ownership costs.
MortgagesCompound interest calculator UK
Project a lump sum at a fixed annual return.
InvestmentsEffective annual interest rate calculator
Convert a monthly interest rate into an effective annual rate.
InvestmentsInvestment total return calculator UK
Measure a simple investment gain including cash distributions and fees.
InvestmentsAnnualised investment return calculator UK
Convert start and end values into a compound annual growth rate.
InvestmentsDividend yield calculator UK
Calculate a share’s annual cash dividend yield from your own price and dividend inputs.
InvestmentsDividend income from a holding calculator UK
Estimate gross cash dividends from a known share count and declared or assumed payment.
InvestmentsAverage share purchase cost calculator UK
Combine two share purchases and their dealing fees into a weighted average cost.
InvestmentsShare sale profit before tax calculator UK
Work out trading profit from purchase and sale prices, share count and transaction charges.
InvestmentsPortfolio allocation amounts calculator UK
Turn target allocation percentages into pound amounts for three holdings.
InvestmentsTwo-holding portfolio rebalancing calculator UK
Compare current holdings with a chosen target allocation.
InvestmentsInvestment fee impact calculator UK
Compare a lump sum with and without an annual percentage charge.
InvestmentsInflation-adjusted investment return calculator UK
Convert a nominal return into a real return after an inflation assumption.
InvestmentsFuture cost after inflation calculator UK
Project the future price of an item using your own constant inflation scenario.
InvestmentsFuture purchasing power calculator UK
Translate a future cash balance into today’s money under an inflation assumption.
InvestmentsRegular investment projection calculator UK
Model monthly investing with a constant return that can also be negative.
InvestmentsRequired investment target return calculator UK
Find the constant annual return needed to meet a target with monthly contributions.
InvestmentsInvestment doubling time calculator UK
Calculate how long a lump sum takes to double at a chosen constant effective rate.
InvestmentsBond current yield calculator UK
Calculate annual coupon income as a percentage of a bond’s current clean price.
InvestmentsBond redemption yield calculator UK
Solve the annual yield of a fixed-coupon bond held to redemption.
InvestmentsInvestment withdrawal runway calculator UK
Model how long a portfolio lasts with fixed monthly withdrawals.
InvestmentsInvestment loss recovery calculator UK
Find the percentage gain required to recover from a percentage loss.
InvestmentsForeign investment GBP return calculator UK
Separate asset performance and exchange-rate changes for a simple foreign-currency holding.
InvestmentsMonthly budget calculator UK
Understand what is left after your everyday spending.
Cost of livingRent budget from take-home pay calculator UK
Find the rent left within your own monthly spending and savings plan.
Cost of livingShared household bills split calculator UK
Split a total household bill equally or by a specified personal share.
Cost of livingMonthly sinking fund for annual bills calculator UK
Turn annual and irregular bills into a monthly amount to set aside.
Cost of livingWeekly grocery budget calculator UK
Convert weekly grocery spending into monthly and annual planning amounts.
Cost of livingCost per meal portion calculator UK
Divide recipe ingredient costs and cooking energy across the portions made.
Cost of livingAnnual subscription spending calculator UK
Add weekly, monthly and annual subscriptions on a consistent yearly basis.
Cost of livingCommuting cost by working pattern calculator UK
Estimate annual commuting cost using the days you travel and your daily fare or fuel cost.
Cost of livingMoving home cash budget calculator UK
Add one-off moving costs and housing overlap without mixing them with a house deposit.
Cost of livingUK relocation arrival budget calculator UK
Calculate cash needed before your first reliable payday when moving to the UK.
Cost of livingNet income after childcare and work costs calculator UK
Compare household money remaining from two working patterns.
Cost of livingRent increase percentage calculator UK
Measure the percentage and annual impact of a proposed monthly rent change.
Cost of livingPay rise versus inflation calculator UK
Compare a nominal salary increase with your chosen inflation rate.
Cost of livingPersonal cost-of-living change calculator UK
Compare your own housing, food, travel and other spending before and after a change.
Cost of livingEmergency savings runway calculator UK
Find how long accessible savings cover an essential monthly shortfall.
Cost of livingSingle-person Council Tax discount calculator UK
Apply the standard 25% single-counted-adult discount to an eligible Council Tax bill.
Cost of livingTake-home pay calculator UK 2026/27
Estimate net annual and monthly employment pay.
Tax & payIncome Tax calculator UK 2026/27
Work out annual Income Tax using the right UK country bands.
Tax & payStudent loan repayment calculator UK 2026/27
Estimate repayments for Plans 1, 2, 4, 5 and postgraduate loans.
Tax & payNational Insurance calculator UK 2026/27
Estimate category A employee contributions.
Tax & paySelf-employed tax calculator UK 2026/27
Estimate Income Tax and Class 4 NI on annual profits.
Tax & payDividend tax calculator UK 2026/27
Estimate tax on dividends alongside salary or pension income.
Tax & payCapital Gains Tax calculator UK 2026/27
Estimate CGT using gains, losses and your remaining basic band.
Tax & paySavings interest tax calculator UK 2026/27
See how much interest may be covered by UK allowances.
Tax & payPersonal Allowance taper calculator UK
Calculate the standard Personal Allowance remaining after adjusted net income tapering.
Tax & payEffective salary tax rate calculator UK
Show annual Income Tax and employee NI as shares of gross employment income.
Tax & payTax and NI on a pay rise calculator UK
Measure deductions and retained pay on a specified increase in annual salary.
Tax & payGross salary for target take-home calculator UK
Estimate the gross annual salary needed for a chosen monthly net amount.
Tax & payUK country salary tax comparison calculator UK
Compare annual net pay under two UK country tax-band scenarios.
Tax & payGift Aid tax-cover limit calculator UK
Check how much Gift Aid donation can be covered by qualifying UK tax already paid.
Tax & payTrading allowance versus expenses calculator UK
Compare a £1,000 trading allowance with actual deductible expenses in a simple eligible case.
Tax & payProperty allowance versus expenses calculator UK
Compare the UK property allowance with actual eligible expenses for a simple rental-income case.
Tax & paySelf Assessment payments on account calculator
Estimate January and July Self Assessment payments, including the balancing bill and advance payments on account.
Tax & paySavings calculator UK
See how regular saving can add up over time.
Money & savingsLoan repayment calculator UK
Explore monthly payments and the total cost of borrowing.
Money & savingsLifetime ISA bonus calculator UK
Work out a government bonus within the annual LISA limit.
Money & savingsISA allowance calculator UK 2026/27
Track contributions against the current adult ISA allowance.
Money & savingsSavings goal calculator UK: monthly target
Find the monthly contribution needed to reach a target.
Money & savingsEmergency fund calculator UK
Turn essential spending into a personal savings target.
Money & savingsDebt payoff calculator UK
Estimate repayment time with a fixed monthly payment.
Money & savingsCredit card repayment calculator UK
Compare a card payment with an extra monthly amount.
Money & savingsSimple interest calculator UK
Calculate non-compounding interest on a fixed principal over a stated period.
Money & savingsAER from nominal savings rate calculator UK
Convert a nominal annual rate with periodic compounding into an AER.
Money & savingsMonthly interest from AER calculator UK
Find the equivalent monthly interest on a fixed balance from a quoted AER.
Money & savingsTime to reach savings goal calculator UK
Estimate the months required to reach a target with regular deposits.
Money & savingsRequired lump-sum savings rate calculator UK
Find the annual compound rate required for an existing lump sum to reach a target.
Money & savingsFixed-term savings bond interest calculator UK
Estimate a fixed-term deposit balance under a selected interest-payment method.
Money & savingsSavings pot for monthly interest income calculator UK
Estimate the balance needed for a monthly gross interest target at a nominal rate.
Money & savingsIncreasing monthly savings plan calculator UK
Project savings when your monthly contribution rises by a chosen percentage each year.
Money & savingsStamp duty calculator UK: SDLT, LBTT and LTT
Calculate SDLT, Scottish LBTT or Welsh LTT by country.
Home & propertyHouse deposit calculator UK
Turn a property price into a clear deposit target.
Home & propertyRental yield calculator UK: gross and operating
Compare gross and operating rental yields.
Home & propertyRental cash flow calculator UK
Estimate rental income left after monthly outgoings.
Home & propertyTotal cash to buy a home calculator UK
Add deposit, property purchase tax, legal costs, survey, moving and a chosen reserve.
Home & propertyBreak-even rent with void periods calculator UK
Find the occupied-month rent needed to cover annual cash costs after expected voids.
Home & propertyRental cash-on-cash return calculator UK
Compare annual before-tax rental cash flow with the actual cash invested.
Home & propertyNet house sale proceeds calculator UK
Estimate sale cash remaining after mortgage redemption and selling costs.
Home & propertyRenovation cost with contingency calculator UK
Add contractor, material and professional quotes with a separate chosen contingency.
Home & propertyRent a Room allowance comparison calculator UK
Compare the Rent a Room allowance with actual-cost profit for confirmed eligible receipts.
Home & propertyRental void-period loss calculator UK
Measure rent foregone and ongoing cash costs during a vacancy.
Home & propertyVAT calculator UK: add or remove VAT
Add VAT to a net price or remove it from a gross price.
Work & businessHourly to salary calculator UK
Convert an hourly rate into weekly and annual gross pay.
Work & businessMinimum wage calculator UK 2026
Estimate gross earnings at the statutory hourly minimum.
Work & businessEmployer National Insurance calculator UK 2026/27
Estimate annual employer NI for a standard adult employee.
Work & businessHoliday entitlement calculator UK: regular hours
Estimate statutory days for a regular working week.
Work & businessPro-rata salary calculator UK
Convert a full-time salary to your contracted hours.
Work & businessOvertime pay calculator UK
Work out extra gross pay for overtime hours.
Work & businessDaily salary equivalent calculator UK
Convert an annual gross salary to a daily equivalent for your paid working days.
Work & businessSalary to hourly rate calculator UK
Convert annual gross pay into an hourly equivalent using contracted paid hours.
Work & businessPay rise percentage and amount calculator UK
Measure an annual salary change and its gross monthly equivalent.
Work & businessAnnual bonus after tax calculator UK
Estimate the annual net effect of an employment bonus using country tax bands.
Work & businessOvertime after tax calculator UK
Estimate the annual net effect of a regular overtime pattern.
Work & businessRegular-hours holiday proportion calculator UK
Illustrate a regular-hours worker’s share of a full-year statutory leave baseline.
Work & businessStatutory Maternity Pay amount calculator UK
Estimate gross statutory maternity payments for a confirmed eligible employee.
Work & businessStatutory Paternity Pay amount calculator UK
Estimate gross pay for one or two eligible weeks at the 2026/27 statutory rate.
Work & businessShift pattern gross pay calculator UK
Add ordinary and premium shifts into weekly and annual gross pay.
Work & businessFour-weekly pay to monthly budget calculator UK
Convert four-weekly income into a calendar-month average for household planning.
Work & businessRedundancy pay calculator UK (2026/27)
Estimate statutory redundancy pay using your age, completed service and weekly pay, with separate Northern Ireland limits.
Work & businessStatutory Sick Pay calculator UK (2026/27)
Estimate gross SSP for one week using average earnings, qualifying working days and the 2026/27 statutory rate.
Work & businessNet profit margin calculator UK
Measure profit as a share of revenue after all entered costs.
Business financeMarkup on cost calculator UK
Find the selling price needed for a chosen markup on cost.
Business financeBusiness break-even sales calculator UK
Find the unit sales needed to cover fixed costs at a chosen unit contribution.
Business financeVAT output minus input calculator UK
Calculate a simple VAT balance from output VAT and eligible recoverable input VAT.
Business financeVAT invoice total calculator UK
Build a simple invoice subtotal, discount, VAT amount and gross total.
Business financeFreelance day rate target calculator UK
Turn an annual pre-tax income target and business costs into a billable day-rate target.
Business financeSole trader monthly tax reserve calculator UK
Turn a simple sole trader tax estimate into a monthly amount to put aside.
Business financeBusiness cash runway calculator UK
Estimate how long cash covers a business’s monthly net cash burn.
Business financeWorking capital calculator UK
Measure the difference between current assets and current liabilities.
Business financeCurrent ratio calculator UK
Compare short-term assets with short-term liabilities.
Business financeCash conversion cycle calculator UK
Combine inventory, customer payment and supplier payment days.
Business financeInventory turnover calculator UK
Estimate annual inventory turns and average holding days.
Business financeEarly invoice payment discount calculator UK
Compare cash saved by an early payment discount with its simple annualised funding value.
Business financeDebt service coverage ratio calculator UK
Compare operating cash available with principal and interest payments due.
Business financeOperating profit margin calculator UK
Calculate operating margin before finance and tax from revenue and operating costs.
Business financeVAT registration turnover check calculator UK
Compare taxable rolling 12-month turnover with the UK registration threshold.
Business financeCorporation Tax with marginal relief calculator UK
Estimate 2026 Corporation Tax for a qualifying company over a full 12-month accounting period.
Business financeEmployment Allowance remaining NI calculator UK
Apply the annual allowance to eligible employer Class 1 NI liability.
Business financeApprenticeship Levy calculator UK
Estimate annual levy from the pay bill and allowance allocated to this employer.
Business financeTotal employer cost of an employee calculator UK
Add salary, standard adult employer NI and actual employer-funded costs.
Business financePension tax relief calculator: basic-rate top-up
Convert a personal pension payment into its gross contribution.
Pensions & retirementSalary sacrifice pension calculator UK
Compare take-home pay before and after a pension sacrifice.
Pensions & retirementPension annual allowance calculator UK 2026/27
Estimate the standard or tapered pension input allowance.
Pensions & retirementInheritance Tax calculator UK: basic estate estimate
Illustrate estate tax using the standard nil-rate band.
Pensions & retirementPension pot growth projection calculator UK
Model a defined-contribution pot with personal and employer gross contributions.
Pensions & retirementPension income at a chosen draw rate calculator UK
Translate a pension pot and your chosen annual withdrawal percentage into gross income.
Pensions & retirementPension pot for an income gap calculator UK
Calculate a pot target from an income gap and a withdrawal rate you choose.
Pensions & retirementPension tax-free lump sum calculator UK
Estimate the ordinary 25% tax-free cash amount within confirmed remaining lump sum allowance.
Pensions & retirementTax on a taxable pension withdrawal calculator UK
Estimate extra annual Income Tax from a wholly taxable pension withdrawal.
Pensions & retirementRetirement income and spending budget calculator UK
Compare net pension and other income with essential and optional retirement spending.
Pensions & retirementPension contribution for a pot target calculator UK
Solve the monthly gross personal input needed after allowing for employer contributions.
Pensions & retirementPension allowance carry-forward total calculator UK
Add confirmed usable prior-year allowance to the current year’s allowance.
Pensions & retirementChild Benefit calculator UK 2026/27
Estimate gross payments for eligible children.
Family & benefitsChild Benefit tax charge calculator UK 2026/27
Estimate the charge using the higher earner’s adjusted net income.
Family & benefitsMarriage Allowance calculator UK 2026/27
Estimate the couple’s net benefit from transferring an allowance.
Family & benefitsTax-Free Childcare calculator UK
Estimate government support for one eligible child over three months.
Family & benefitsGift Aid calculator UK: charity donation top-up
See what a qualifying donation is worth to a charity.
Family & benefitsFunded childcare cost calculator UK
Estimate your remaining childcare bill after confirmed funded hours, including term-time funding and annualised monthly costs.
Family & benefitsElectricity running cost calculator UK
Find out what an appliance costs to run.
Home & energyGas usage cost calculator UK
Estimate a gas bill from billed kWh, your unit rate and daily standing charge.
Home & energyElectricity and gas bill calculator UK
Combine actual electricity and gas usage with separate unit and standing rates.
Home & energyGas meter units to kWh calculator UK
Convert a domestic gas meter volume into an energy estimate using bill factors.
Home & energyHeat pump electricity cost calculator UK
Estimate electricity needed for a known heat demand and a chosen efficiency factor.
Home & energyBoiler gas cost for heat demand calculator UK
Estimate gas input and cost from useful heat demand and boiler efficiency.
Home & energySolar output from quoted yield calculator UK
Turn a site-specific annual yield estimate and array size into annual generation.
Home & energySolar simple payback calculator UK
Compare installation cost with annual bill savings, export income and running costs.
Home & energyHome battery tariff-shifting value calculator UK
Estimate the gross margin from shifting a stated quantity of electricity between tariff periods.
Home & energyEnergy standing charge cost calculator UK
Add daily electricity and gas standing charges over a chosen billing period.
Home & energyElectricity tariff comparison calculator UK
Compare two single-rate electricity tariffs using the same annual consumption.
Home & energyMetered water and sewerage bill calculator UK
Estimate charges from a measured water volume and your provider’s prices.
Home & energyElectric shower energy and water cost calculator UK
Estimate both electricity and metered water used by a daily shower pattern.
Home & energyTumble dryer cost per cycle calculator UK
Estimate drying costs using measured or programme-specific energy per cycle.
Home & energyFuel cost calculator UK: petrol and diesel
Estimate a trip using UK miles and imperial MPG.
Car & travelMileage allowance calculator UK 2026/27
Calculate approved employee mileage amounts for an owned vehicle.
Car & travelEV charging cost calculator UK
Estimate charging cost with your tariff and charging losses.
Car & travelAnnual car running cost calculator UK
Combine actual fuel, insurance, servicing, tax and other annual motoring costs.
Car & travelUK MPG to litres per 100 km calculator UK
Convert UK imperial miles per gallon and litres per 100 kilometres.
Car & travelCar ownership cost per mile calculator UK
Spread a known annual car ownership cost across the miles you actually drive.
Car & travelCar lease total cost calculator UK
Add the initial rental, remaining monthly rentals and stated lease fees.
Car & travelPCP total amount payable calculator UK
Separate the cash paid before a PCP balloon from the cost of keeping the car.
Car & travelCar depreciation cost calculator UK
Measure depreciation between a purchase price and an expected or observed resale value.
Car & travelEV versus petrol energy cost calculator UK
Compare electricity and petrol costs over the same mileage.
Car & travelEV charging time calculator UK
Estimate charging duration from battery energy needed and sustained charger power.
Car & travelJourney time from average speed calculator UK
Convert a route distance and actual average speed into a travel-time estimate.
Car & travelCar loan from payment budget calculator UK
Find the loan principal supported by a fixed payment, term and nominal interest rate.
Car & travelCompany car tax calculator UK (2026/27 BIK)
Estimate annual and monthly company car benefit-in-kind (BIK) tax, including electric cars and Scottish Income Tax bands.
Car & travelPaint quantity and tin count calculator UK
Estimate litres and whole tins from measured area, coats and manufacturer coverage.
Home & DIYWallpaper rolls for a wall calculator UK
Estimate full drops and rolls using wall width, drop height and effective pattern repeat.
Home & DIYTile count and box quantity calculator UK
Calculate whole tiles and boxes from area, tile size and a chosen cutting allowance.
Home & DIYFlooring pack and fitting cost calculator UK
Estimate flooring packs and total material-plus-fitting cost from measured area.
Home & DIYConcrete slab volume calculator UK
Calculate a rectangular slab’s concrete volume from metres and millimetres.
Home & DIYGravel volume and tonnage calculator UK
Estimate aggregate volume and mass using a supplier’s bulk density.
Home & DIYFence panel and post count calculator UK
Estimate standard bays along one straight run with a chosen panel and post width.
Home & DIYDecking board quantity calculator UK
Estimate board rows and stock boards for a rectangular deck.
Home & DIYWall area after openings calculator UK
Measure rectangular wall area and subtract the total doors and windows you supply.
Home & DIYFloor area cost from square feet calculator UK
Convert a quoted square-foot area to square metres and apply a metric supply or fitting rate.
Home & DIYPercentage calculator: increases and decreases
Find a percentage, a discounted price or an increase.
EverydayUnit price calculator: compare pack prices
Compare two packs using the same measurement unit.
EverydayDiscount calculator UK: sale price and savings
Find the sale price after one percentage discount.
EverydayPercentage change calculator UK
Measure an increase or decrease between an original and a new value.
UK units & mathsReverse percentage calculator UK
Recover the starting value before a known percentage increase or decrease.
UK units & mathsPercentage of a total calculator UK
Find what share one amount represents of a positive total.
UK units & mathsRatio simplifier calculator UK
Reduce a two-part whole-number ratio and show each share of the total.
UK units & mathsUK length converter calculator UK
Convert metres, centimetres, millimetres, feet, inches, yards and miles.
UK units & mathsUK area converter calculator UK
Convert square feet, square metres, acres and hectares.
UK units & mathsUK imperial volume converter calculator UK
Convert litres, millilitres, cubic metres and UK imperial pints or gallons.
UK units & mathsStone, pounds and kilograms converter calculator UK
Convert between kilograms, stones, pounds, ounces and metric tonnes.
UK units & mathsCelsius and Fahrenheit converter calculator UK
Convert temperatures between Celsius, Fahrenheit and Kelvin.
UK units & maths