Mondo Knows Tools
Interest Rate Calculator
Find the rate hiding in a loan's payment and term. Use the free interest rate calculator below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.
$
$
years
Mondo says
Annual interest rate
12.00%
Monthly rate100.00%
Total paid$25,200.00
Total interest$5,200.00
Interest Rate Calculator: common questions
- What does the Interest Rate Calculator work out?
- Find the rate hiding in a loan's payment and term. It is one of the Money & Finance tools on Mondo Knows.
- How is the Interest Rate Calculator calculated?
- You get an instant answer with the working shown underneath.
- Do I need to sign up, and is my data stored?
- No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.
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Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.