About YoCalc
YoCalc exists because finding a simple answer online shouldn't require dodging pop-ups, creating an account, or scrolling past three ads to reach the calculate button. We build calculators that load fast, answer instantly, and get out of your way.
Every one of our 24 tools runs entirely in your browser. The numbers you type — your salary, your loan, your weight — are never sent to a server, never stored, and never seen by anyone, including us. Close the tab and they're gone.
We also believe you deserve to understand the answer, not just receive it. Each tool shows the exact formula it uses, explains the math in plain English, and answers the questions people actually ask. If a calculator makes an assumption — like a fixed interest rate or a 40-hour work week — we say so.
Our principles
- Instant. No loading spinners, no server round-trips. Results appear the moment you press calculate.
- Private. All computation happens client-side. Your inputs never leave your device.
- Honest. Formulas are shown, assumptions are stated, and limitations are called out — BMI's blind spots included.
- Free. No accounts, no paywalls, no premium tier. Every tool is free for everyone, always.
A note on advice
Our calculators are educational tools that produce estimates. They're great for understanding your options — they are not a substitute for a financial advisor, an accountant, or a doctor. For decisions that matter, verify the numbers with a professional.