Calculator App
The Calculator App — 130+ Free UK & US Calculators
& Unit Converters
130+ Free Calculators
The Internet's Most Searched
Financial Edition
The money questions everyone Googles — answered with the actual numbers.
Mortgage
How much is a £200,000 mortgage per month?
£1,169/mo
Mortgage
How much is a £300,000 mortgage per month?
£1,754/mo
Mortgage
What salary do I need to buy a £400,000 house?
~£80,000
Mortgage
How much deposit do I need for a £250,000 house?
£25,000
Salary
£30,000 after tax UK
£25,120
Salary
£40,000 after tax UK
£32,320
Browse Categories
All CalculatorsFinance & Property
Mortgages, tax, savings, loans and salary calculators
UK Salary CalculatorTake-home pay after tax and NICompound InterestHow your money grows over timeMortgage CalculatorMonthly mortgage repaymentsMortgage OverpaymentSave interest by overpayingMortgage Cost ComparisonCompare mortgage deals side by sideWeekly MortgageWeekly equivalent of your mortgageStamp Duty CalculatorSDLT on UK property purchasesFuture House ValueProject your property's future valueLoan CalculatorMonthly repayments on personal loansCar Loan CalculatorFinance costs on a vehicleSavings CalculatorWatch your savings pot growISA CalculatorCash ISA, Stocks & Shares and LISAAPY CalculatorConvert APR to AER and compare ratesSimple InterestBasic interest without compoundingBudget CalculatorTrack income vs spending by categoryVAT CalculatorAdd or remove UK VAT instantlyCapital Gains TaxCGT on UK assets and investmentsInheritance TaxIHT thresholds and liabilityRetirement CalculatorPlan pension and retirement incomeUS Salary CalculatorFederal tax, FICA and state taxCredit Card PayoffTime and cost to clear card debtIRR CalculatorInternal rate of return on projects
Everyday Calculators
Percentages, dates, health, construction and more
Percentage CalculatorPercentage of, change, and differenceAge CalculatorExact age in years, months and daysDiscount CalculatorFinal price after any % discountTip CalculatorSplit bills and calculate tipsBMI CalculatorBody Mass Index and healthy rangeCalorie CalculatorDaily calorie needs by activityDays From TodayWhat date is N days from now?Days Between DatesExact days between two datesMonths Between DatesMonths and days between datesHours CalculatorAdd or subtract hours and minutesWorking Days CalculatorBusiness days excluding weekendsSquare Footage CalculatorArea in sq ft for any room or spaceCubic Yards CalculatorVolume for landscaping projectsGravel CalculatorTonnes of gravel for a given areaMulch CalculatorBags of mulch needed for garden bedsConcrete CalculatorCubic metres of concrete needed
Unit Converters
Length, weight, volume, temperature and cooking measurements
KM to MilesKilometres to miles conversionGallons to LitresUS and UK gallons to litresML to OzMillilitres to fluid ouncesCM to InchesCentimetres to inchesInches to CMInches to centimetresMetres to FeetMetres to feet and inchesLBS to KGPounds to kilogramsStone to KGStone and pounds to kilogramsFahrenheit to CelsiusTemperature conversionCups to GramsBaking measurement conversionGrams to TablespoonsCooking weight to volumeOunces to GramsImperial to metric weightTeaspoons to MLVolume for recipes and medicine
From The Blog
Guides, explainers and analysis on UK finance
PropertyThe Mortgage Cheat Code
InvestingWeekly vs Monthly Investing — The $147k Difference
PropertyHow Much Can I Borrow for a Mortgage?
PropertyFixed vs Tracker Mortgage
PropertyWhat Is LTV on a Mortgage?
PropertyPay Off Your Mortgage Early
PropertyStamp Duty UK 2025
PropertyFirst Time Buyer Guide UK 2025
TaxUK Tax Brackets 2025
TaxPersonal Allowance UK
TaxNational Insurance 2025/26
PropertyMortgage & Interest Rates Explained
PropertyHow Long to Pay Off a Mortgage?
SalaryWhat Is a Good Salary UK?
SavingsHow Much Should I Save Per Month?
SavingsWhat Is an ISA?
RetirementHow Much Do I Need to Retire?
InvestingWhat Is Compound Interest?
TaxWhat Is Capital Gains Tax UK?
TaxWhat Is Inheritance Tax UK?
MathsHow to Calculate Percentage
HealthWhat Is BMI?
PropertyHow to Save for a House Deposit
TaxWhat Is VAT UK?
PropertyHow Much Is Stamp Duty 2025?
InvestingWhat Is a Stocks & Shares ISA?
Learn Guides
Step-by-step financial education from basics to advanced
InvestingCompound Interest Formula: The Complete Guide
FoundationYour Financial Journey
BudgetingWhere Does Your Money Go?
BudgetingThe 50/30/20 Budget Rule
BudgetingAutomate Your Finances
SavingsBuild an Emergency Fund
ReferenceCalculator Formulas Guide
InvestingBefore You Invest
BudgetingBudgeting for Irregular Costs
InvestingBuild Your Portfolio
SavingsChoose a Savings Account
CreditUnderstanding Credit Scores
DebtThe UK Debt Landscape
InvestingEthical Investing
FoundationFinancial Freedom
SavingsYour First £1,000
EconomicsThe Inflation Guide
EconomicsThe Interest Rate Impact
InvestingInvesting Basics
InvestingInvesting vs Trading
BudgetingMonthly Financial Dashboard
InvestingPortfolio Rebalancing
AdvancedProtect Your Wealth
DebtSnowball vs Avalanche Method
TaxTax-Efficient Accounts
FoundationTeach Kids About Money
ReferenceUK Finance Statistics
Featured Reading
Guides and articles worth your time — no fluff