Free financial calculators for loans, mortgages, stamp duty (SDLT), how much you can borrow, mortgage affordability, overpayments, rent vs buy comparisons, remortgage savings, and simple & compound interest. All calculations run instantly in your browser — no sign-up required, no data stored, completely private.
Calculate repayments for any type of loan with detailed amortization schedules.
Plan your home purchase with monthly payments, LTV ratio, and total cost analysis.
Find out how much a lender could offer based on your annual income and existing commitments.
Check whether you can afford a mortgage based on your monthly income and expenses.
Compare your current mortgage deal with a new one to see if remortgaging saves you money.
See how much interest and time you save by making extra monthly payments.
Find out your UK Stamp Duty Land Tax (SDLT) with first-time buyer relief and surcharges.
Compare the long-term cost of renting vs buying and find your break-even point.
Calculate simple or compound interest earned on savings or paid on a loan, with compounding frequency support.
Simple Loan Calculators