Repayment Calculator

How much principal you can repay with a fixed monthly budget.

Repayment Calculator helps you how much principal you can repay with a fixed monthly budget. Enter monthly budget, annual rate, and loan term, review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the Repayment calculator does Repayment Calculator is built for money decisions — loans, savings, payments, and taxes. How much principal you can repay with a fixed monthly budget. You enter monthly budget, annual rate, and loan term, then Simple Calculators computes the result instantly. Rates, fees, and tax rules vary by lender and country, so treat results as planning numbers, not a contract. How the math works Enter your Monthly budget, the Annual rate and the Loan term in years. The calculator works the loan formula backwards: amount you can borrow = budget × ((1 + r)^n − 1) ÷ (r × (1 + r)^n), where r is the annual rate ÷ 12 and n is the number of monthly payments. It assumes a fixed rate, equal monthly payments and no fees. The formula: P = M × ((1 + r)^n − 1) ÷ (r × (1 + r)^n). M is the monthly budget, r the monthly interest rate (annual rate ÷ 12) and n the number of monthly payments.