Calculators

All calculators

Pick one from the list. Each calculator has its own page. Figures are guidance, not financial or legal advice.

Business

Late payment

Work out statutory interest and fixed compensation when a UK business pays a commercial invoice late, under the Late Payment of Commercial Debts (Interest) Act 1998.

Borrowing

Loan

Work out the monthly repayment and total interest on a UK loan, and the time and interest saved by paying extra or a lump sum.

Mortgage

Estimate a UK mortgage payment on a repayment or interest-only basis, including a monthly overpayment, a lump sum, the interest saved, and an early-repayment allowance.

Affordability

See an illustrative UK mortgage amount at 4.5 times gross income, after a simple allowance for monthly credit commitments, plus a stressed monthly payment.

Credit card

See how long a card balance takes to clear at a fixed monthly payment, or the payment that clears it by a date you choose, and the interest either way.

Saving

Savings

See how a UK savings balance can grow with compound interest, a monthly contribution, and annual or monthly compounding.