Budget 101 is a small, independent site with one job: give you simple money tools that work the moment you open them.
Why we built it
Most budgeting advice ends with "download our app" or "sign up for the newsletter". We think a budget calculator should just calculate. You enter your numbers, you get an answer, and you get on with your day.
How the tools work
Every calculator runs in your browser. Your income and spending figures aren't sent to our servers. Trackers that remember your progress store it on your own device.
Each tool shows the formula it uses and a worked example, so you can check the math yourself.
What we are not
We aren't financial advisers. The calculators give estimates for planning and education. For decisions about debt, tax or investing, talk to a qualified professional who knows your situation.
Get in touch
Found a bug or want a calculator we don't have yet? Send us a note. New tools are added based on what readers ask for.