All of them run instantly in your browser — no sign-up, no waiting — and each one explains how its numbers are worked out. Pick the one you need below.
Mortgage Calculator
Your monthly payment, total interest and a year-by-year breakdown — for a home loan on either side of the Atlantic.
US & UKLoan Calculator
See what a personal, car or other fixed-rate loan really costs each month, and how much interest you will pay in total.
US & UKCompound Interest Calculator
Watch savings grow over time, with regular top-ups included and a year-by-year table to check the numbers.
US & UKCredit Card Payoff Calculator
How long will that balance take to clear? See the months, the interest along the way, and the payment that could make you debt-free in 12 or 24 months.
US & UKSavings Goal Calculator
Set a target — a deposit, a safety net, a holiday — and see the monthly saving that gets you there, with interest included.
USUS Paycheck Calculator
An estimate of your take-home pay after federal tax, Social Security, Medicare, 401(k) and state tax, based on recent published IRS figures. Your exact pay depends on your situation.
UKUK Take-Home Pay Calculator
Your take-home pay after Income Tax, National Insurance, student loan and pension, based on recent published HMRC figures — your exact result depends on your circumstances.
UK · England & NIStamp Duty Calculator
Buying in England or Northern Ireland? Check the duty due, with first-time buyer relief and the second-home surcharge included.
UK & USSalary After Tax
What £25k–£60k and $50k–$100k salaries are actually worth after tax, shown month by month.