Loan payment calculator

Calculate the monthly payment of a personal, car or consumer loan, plus the total cost and interest, from the amount, rate and term in months.

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How to use it and context

Loan payment calculator gives you a clear estimate in seconds, free and with no signup. Fill in the fields in the form above, then run the calculation to get an instant result. The tool is designed to help you understand your situation, compare several scenarios and prepare your financial decisions on your own.

Calculation method and formula

The calculation is based on the following standard formula:

M = P * i * (1 + i)^N / [(1 + i)^N - 1] (i = rate/12, N = months)

The engine is deterministic: for the same inputs it always returns exactly the same result. Rates should be entered as an annual percentage unless stated otherwise.

Detailed worked example

Let's walk through a concrete example using the values pre-filled in the form above.

Calculation steps

  1. Loan amount = 15,000.00
  2. i = 8.00 % / 12 = 0.6667 %
  3. N = 48
  4. M = P x i x (1+i)^N / [(1+i)^N - 1] = 366.19
  5. Total repaid = 17,577.30 | Total interest cost = 2,577.30

Result : Monthly payment : 366.19

Change any value in the form to recalculate instantly and compare several scenarios.

Frequently asked questions (FAQ)

Is Loan payment calculator really free?

Yes. Loan payment calculator is completely free, unlimited to use and requires no account.

Are the results of Loan payment calculator reliable?

Loan payment calculator applies a recognized calculation method. The results are an estimate for information only and do not replace advice from a qualified professional.

Is my data stored?

No. All calculations run directly in your browser; no value you enter is sent to a server or saved.

Can I use Loan payment calculator to compare several scenarios?

Yes. Change one value at a time (the rate or the term, for example) and run the calculation again: you will immediately see the impact of that single parameter. It is the best way to understand which lever matters most in your situation.

Why does my result differ from my bank's or my employer's figure?

A gap is normal: institutions often apply extra fees, rounding, progressive brackets or specific contributions that are not set here. This tool gives a reliable order of magnitude to prepare your decision, not a contractual document.

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