Tools
Free loan calculators and lending tools
Calculators for the arithmetic every lender and borrower needs to check. They run in your browser, need no sign-up, and show their formulas so you can verify the result.
Loan calculator
Payment, total interest and real annual cost for flat, reducing balance and interest-only loans, with an optional processing fee and a downloadable schedule.
Flat vs reducing balance calculator
Put a flat rate and a reducing balance rate side by side on the same loan and see how much more the flat rate costs in real terms.
Loan amortization schedule calculator
Generate a full repayment schedule with the interest and principal in every payment, for equal installments or equal principal, and download it as CSV.
Calculators work one loan at a time. To manage a whole loan book, with schedules generated for every loan and payments applied automatically, see LoanTabs loan management software, or learn the methods behind these tools in how to calculate loan interest.