Interest Calculators is an independent educational website. We build free, fast calculators and plain-language reference pages about interest on savings and fixed income: compound and simple interest, APY and APR, certificates of deposit and CD ladders, savings goals, money market accounts, Treasury bills, Series I savings bonds, the rule of 72, future and present value, and dividends.
What we do
- Calculators you can check. Every calculator states its formula, shows a worked example and gives a year-by-year table you can download.
- Rates with a date and a source. Deposit rates come from the FDIC's national rates, Treasury figures from TreasuryDirect and Fiscal Data, policy rates from the Federal Reserve, and formulas from Regulation DD, the Code of Federal Regulations and the SEC's investor.gov.
- No selling. We do not sell products, we do not link to sellers, and we do not accept payment for reviews or placements.
Who we are
Interest Calculators is run by a small independent editorial team based in Türkiye. We are not affiliated with any bank, credit union, broker, fund company or government agency mentioned on this site.
How the site is funded
The site shows advertising served by Google AdSense. Advertisers do not influence what we write, and ads are clearly separated from our content.
Read our editorial policy, our financial disclaimer and our privacy policy. To reach us, use the contact page.