Loan Calculator.

Calculate monthly loan repayments, total interest, and full amortization for any loan amount and currency.

Monthly payment
$0
Total interest
$0
Total paid
$0
Assumes a standard amortising loan with monthly compounding (APR/12). Total interest will be lower than simple interest because the balance reduces as you repay.

Enter a loan amount, annual interest rate, and term in years to instantly calculate your monthly repayment, total interest paid, and total amount repaid. Supports $ USD, £ GBP, and € EUR.

How to use

Choose your currency, enter the principal amount, the annual interest rate as a percentage, and the loan term in years. The monthly payment, total interest, and total paid update immediately.

Examples

$10,000 at 5% over 5 years $188.71/month · $1,322.74 interest · $11,322.74 total
£200,000 at 4.5% over 25 years £1,111.68/month · £133,503 interest
€5,000 at 3% over 3 years €145.44/month · €236 interest

FAQ

Does this include fees or insurance?

No — this is a standard amortising loan calculation using principal, rate, and term only. Add arrangement fees to the principal to factor them in.

What is amortisation?

Each monthly payment covers both interest and a portion of the principal. Early payments are mostly interest; later ones pay off more capital. The total paid is the same regardless of this split.

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Privacy and data handling

This tool runs entirely in your browser. Nothing you type or paste is sent to any server — all processing happens locally on your device.