Simple Interest Calculator

Simple interest is charged only on the principal — no compounding. Useful for short-term loans and some bonds.

Your details

Principal$Annual rate%Years

Interest

$1,500.00

Total value: $11,500.00

Principal vs interest

Principal: $10,000.0087%
Interest: $1,500.0013%

Interest$1,500.00

Formula

Interest = principal × rate × time. Total = principal + interest.

Sources & methodology

•U.S. SEC — interest — SEC

Last updated: 2026-07-20

Related calculators

More Investment →

Compound Interest Calculator APY Calculator

Embed this calculator⌄

Paste this into your page — it works with no key and computes in the visitor's browser.

<iframe src="https://numveo.com/embed/simple-interest-calculator" width="100%" height="640" style="border:0" loading="lazy" title="Simple Interest Calculator"></iframe>