Practical calculators for everyday decisions.

Mortgage Payment Calculator

Monthly repayment, total interest, and a full amortisation breakdown.

Mortgage Overpayment Calculator

See how much interest and time you save by overpaying your mortgage.

Mortgage Affordability Calculator

Estimate how much you could borrow based on income and outgoings.

Loan Repayment Calculator

Estimate repayments, interest, and the impact of extra payments.

Loan Interest Calculator

Monthly payment, total interest, and a year-by-year balance table.

APR Calculator

Find the true Annual Percentage Rate of a loan including fees.

Credit Card Payoff Calculator

How long to clear your balance and how much interest you'll pay.

Credit Card Minimum Payment Calculator

See the true cost of only making minimum payments on a credit card.

Car Loan Calculator

Monthly payment and total cost for a car loan. Compare different terms.

Debt Snowball Calculator

Pay off debts smallest-first. See how much you save and when you're debt-free.

Debt Avalanche Calculator

Pay off debts highest-interest-first to minimise total interest paid.

Savings Goal Calculator

How long to reach a savings target, or how much to save each month.

Savings Interest Calculator

Final balance and interest earned with regular contributions and compound growth.

Compound Interest Calculator

Estimate how savings grow with compound interest over time.

Simple Interest Calculator

Calculate I = P × r × t and compare with compound interest.

Emergency Fund Calculator

Target size for your emergency fund and how long to build it.

Investment Return Calculator

Nominal and inflation-adjusted future value of an investment over time.

ROI Calculator

Return on investment as a percentage, with optional annualised ROI.

Annualised Return Calculator

CAGR from a start value, end value, and number of years.

Rule of 72 Calculator

How long to double your money — and the rate needed to hit a target.

Compound Growth Calculator

Project any value growing at a fixed annual rate with a year-by-year table.

CAGR Calculator

Calculate compound annual growth rate or project a future value.

VAT Calculator

Add or remove 20% or custom VAT from a price.

Take-Home Pay Calculator

Estimate your net salary after income tax and National Insurance for 2025/26.

Stamp Duty Calculator

SDLT for England and Northern Ireland — standard, first-time buyer, and additional property rates.

Sales Tax Calculator

Add or remove sales tax at any rate, with quick presets for UK VAT.

Salary & Hourly Rate Converter

Convert between salary and hourly, daily, weekly, and monthly rates in both directions.

Pay Rise Calculator

New salary after a pay rise — and whether it keeps pace with inflation.

Overtime Pay Calculator

Weekly pay with overtime at 1x, 1.5x, 2x, or a custom multiplier.

Pension Calculator

Estimate your pension pot at retirement from contributions, tax relief, and growth.

Pension Lump Sum Calculator

How much tax-free cash you can take and what's left for drawdown.

Retirement Age Calculator

Estimate the age at which your pension pot will sustain your target income.

Retirement Savings Calculator

Projected pot at retirement and whether it covers your income goal.

Price Per Square Metre Calculator

Property value per sq metre or sq foot. Compare two properties.

Construction Cost Calculator

Rough build cost estimate by floor area and spec, with contingency.

House Price Appreciation Calculator

Future property value at a given annual growth rate.

Rent vs Buy Calculator

Total cost of renting vs buying over 5, 10, or 20 years.

Rental Yield Calculator

Gross and net rental yield for a buy-to-let property.

Landlord Profit Calculator

Net monthly and annual profit after mortgage, agent fees, maintenance, and voids.

Break-Even Calculator

Units and revenue needed to cover fixed and variable costs.

Profit Margin Calculator

Gross and net profit margins from revenue and costs.

Markup Calculator

Selling price from cost and markup %, or find the markup on a sale.

Margin vs Markup Calculator

See both margin % and markup % side by side with a conversion table.

Fuel Cost Calculator

Journey cost from miles, MPG, and pence per litre. Compare two vehicles.

Fuel Efficiency Calculator

Convert between MPG, L/100km, and km/L.

MPG Calculator

Calculate your car's MPG from miles driven and fuel used.

Trip Cost Calculator

Fuel cost for a journey split between passengers, with tolls and parking.

Lease vs Buy Calculator

Total cost of leasing vs buying a car over the same period.

Depreciation Calculator

Straight-line or declining balance depreciation with a year-by-year table.

Currency Converter

Convert between GBP and 16 major currencies. Indicative rates.

Inflation Calculator

See what a sum of money is worth in today's money, or in a future year.

Tip Calculator

Calculate a tip and split the bill between any number of people.

Bill Split Calculator

Split a bill equally or with custom amounts per person.

Restaurant Bill Split Calculator

Split a restaurant bill with service charge, cover charge, and per-item mode.

Unit Price Calculator

Compare two products by price per unit to find the best value.

Discount Calculator

Sale price, savings, and optional VAT on the final price.

Discount Percentage Calculator

Find the sale price, the discount %, or the original price.

Percentage Calculator

X% of Y, percentage change, and what percent A is of B.

Percentage Increase Calculator

Calculate the percentage increase between two values.

Percentage Decrease Calculator

Calculate the percentage decrease between two values.