Hi, I'm Muhammad Ahmad
I'm a full stack web developer based in Lahore, Pakistan. I build and look after Tidy Math.
Why I built Tidy Math
Most calculator sites are full of pop-ups, forced sign-ups and numbers you cannot check. I wanted a simple place where you type your numbers, see a clear answer and understand how it was worked out.
That is what Tidy Math is. It is free, it loads fast, and your numbers stay in your browser.
How I keep the numbers right
- Tax and payroll tools use the figures published by the IRS for 2026.
- Health tools use well-known public formulas, such as the CDC's BMI categories.
- Every tool page explains its formula in plain English.
- I review the numbers whenever the rules change.
You can read the full process in the editorial policy.
Say hello
Spotted a mistake, or want a calculator that does not exist yet? Send me a message. I read everything.