RateMath builds free, easy-to-use financial calculators that help people understand interest, savings, and debt. Our goal is simple: give you clear numbers and plain-English explanations so you can make your own informed decisions.
What We Do
- Free calculators for savings, CDs, APY, interest, and debt payoff. No sign-up and no personal information required.
- Clear explanations of the formula behind every result, with worked examples.
- Official sources. We check our formulas and facts against U.S. regulators and agencies such as the CFPB, FDIC, NCUA, Federal Reserve, and IRS.
Learn more about our process on our How We Build Our Calculators page.
Who’s Behind RateMath
Sonu Pal, Founder. Sonu builds and maintains RateMath’s calculators. Every tool is built on standard financial formulas and checked against official U.S. sources such as the FDIC, CFPB, and IRS. Before starting RateMath, he worked in digital marketing and analytics.
How RateMath Is Funded
RateMath is free to use. We may earn money from advertising shown on the site. Advertisers do not influence our calculators, formulas, or explanations. If we ever include affiliate links, we will disclose them clearly on the page where they appear.
Important Note
RateMath is an educational resource. We are not a bank, lender, or licensed financial advisor, and nothing on this site is financial, tax, or legal advice. Read our full Disclaimer.
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