About oykhu.com

What we do

oykhu.com is a free, growing library of 914+ calculators covering finance, health, home and everyday life — from mortgage payments and paycheck estimates to BMI and tip splitting. Every tool is built to give you an instant, accurate answer without an account, a paywall, or a cluttered interface standing in your way.

Why we built it

Most calculators online are either buried in ads, require sign-up, or are attached to a single company trying to sell you something. We wanted a place where the numbers came first: type in your details, get a real answer, move on with your day.

Accuracy & limitations

We work hard to keep the formulas behind every calculator accurate and up to date, and we cite realistic assumptions (like state tax rates) wherever a calculator depends on them. That said, every result on this site is an estimate for informational purposes — not professional financial, legal, medical, or tax advice. For decisions with real money or health on the line, please confirm with a qualified professional. See our Terms of Service for the full picture.

Always free

Every calculator on oykhu.com is free to use, with no account required. The site is supported by advertising, which is disclosed in our Privacy Policy.

Get in touch

Found a bug, have a calculator idea, or just want to say hi? Visit our Contact page — we read every message.