EvenSums is a small collection of free financial calculators built on one belief: a money question deserves a clear answer, not a sales funnel.
Every tool here:
- Runs entirely in your browser. The numbers you enter are never sent to a server, stored, or shared.
- Shows its work. Each calculator explains the formula it uses so you can check the math yourself.
- Requires nothing from you. No account, no email, no app install.
How the site is funded
EvenSums is free to use and supported by advertising and affiliate links. When we link to a financial product, the link is clearly marked and we may earn a commission if you use it - at no cost to you and with no effect on the rates or terms you're offered. Sponsored links never change the calculator results.
A note on advice
These calculators are educational tools, not financial advice. They use standard formulas and the assumptions you provide; real-world results depend on taxes, fees, and market behavior. For decisions with significant consequences, consider talking to a qualified financial adviser.