Loan Calculator
Estimate monthly payments and your loan repayment schedule
Loan details
Enter the figures to calculate your loan
💳 How the loan calculator works
The calculator models an annuity loan — equal monthly payments for the full term. Early on, more of each payment goes to interest; over time the principal share grows.
From your inputs you get the monthly payment, total amount paid, interest overpayment, and a month-by-month repayment schedule.
📐 Formula
Monthly payment under an annuity schedule:
A = P × r × (1 + r)n / ((1 + r)n − 1)
where:
- P — loan amount
- r — monthly rate (annual ÷ 12 ÷ 100)
- n — term in months
- A — monthly payment
Total payments = A × n, overpayment = total − P.
💡 Example
Loan of 1,000,000 at 15% per year for 5 years (60 months):
- Monthly payment: ≈ 23,790
- Total payments: ≈ 1,427,396
- Interest overpayment: ≈ 427,396
A longer term lowers the monthly payment — but raises total interest paid.
📊 Payment schedule
The table shows how each payment is split:
- Payment — fixed monthly amount
- Principal — portion reducing the loan balance
- Interest — interest on the remaining balance for the month
- Balance — unpaid loan amount after the payment
✅ Tips
- Enter the annual rate as published by the bank — the calculator converts it to a monthly rate.
- Set the term in years or months using the dropdown next to the field.
- Insurance, fees, and other costs are not included — the bank total may differ.
- For exact mortgage or loan terms, ask your bank — this tool gives a preliminary estimate.