Loan Payment Calculator

What is Loan Calc?

A loan calculator uses the PMT formula to compute fixed monthly payments from principal, interest rate, and term. Results include total cost and interest breakdown.

How it works

We apply the standard amortization formula: M = P(r(1+r)^n) / ((1+r)^n - 1) where P is principal, r is monthly rate, n is number of payments.

1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Realistic sample

Type or paste any realistic input — the tool computes the result locally and instantly.

Common mistakes

Expecting a server round-trip

Nothing is uploaded — every tool in this category runs entirely in your browser.