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Loan Payment Calculator

Enter an amount, an interest rate, and a term to get the equal monthly payment on a fixed-rate loan. The tool also reports what the loan costs in total and how much of that is interest.

The lowest rates are only available to the most qualified applicants.

Advertising disclosure: Loancalculated may receive a referral fee if you apply through the link above. That fee does not change the rate you are offered, and it does not change our content. We are not a lender. Read the full disclosure.

By the Loancalculated Editorial Team · Last updated 2026-09-16

Enter your numbers and press Calculate. Nothing you type leaves your browser.

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The lowest rates are only available to the most qualified applicants.

Advertising disclosure: Loancalculated may receive a referral fee if you apply through the link above. That fee does not change the rate you are offered, and it does not change our content. We are not a lender. Read the full disclosure.

How this calculator works

Fixed-rate installment loans use the same payment for every period. This tool computes that payment and the two totals that follow from it.

Payment = P × i ÷ (1 − (1 + i)−n)

Total paid is the payment multiplied by n. Total interest is that figure minus P.

Stretch the term and the payment falls while the interest bill grows. Shorten it and the reverse happens.

Enter the rate you want to test; rates depend on the lender and your credit profile, so the output is an estimate.

Frequently asked questions

How do the monthly payment and the total cost differ?
The payment is the amount due each month. The total cost adds every payment together, so it includes the interest charged on top of the sum you borrowed.
Does this work for a mortgage or a car loan?
Any fixed-rate loan with equal monthly installments follows the same relationship. Dedicated calculators add fields such as a down payment, a trade-in, or extra payments.
What if the rate is 0%?
The relationship collapses to P ÷ n, so the payment is the amount borrowed divided by the number of months and no interest is charged.
Why can a smaller payment cost more?
Smaller payments usually come from a longer term. More months means more interest, so the total can be higher even though each payment is lower.

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