Protein Intake Calculator
Calculate how much protein you need per day from your body weight and activity level — free online. — free, fast and private.
How to use Protein Intake Calculator
- Enter your body weight in kilograms.
- Choose your activity level.
- Click Calculate Protein to see your daily target.
Note: this tool runs in your browser. Nothing is uploaded.
Disclaimer: this tool gives an estimate for general information only. It is not medical advice. Talk to a doctor or other qualified health professional before making any health decision.
Frequently Asked Questions
How much protein do I need per day?
Most adults need 0.8–1.2 g of protein per kilogram of body weight per day; active people and athletes often need 1.6–2.2 g/kg. A 70 kg moderately active person needs roughly 84 g per day. Check with a dietitian for your situation.
Is this tool free to use?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Is my data uploaded or stored?
No. This tool runs entirely in your browser — nothing you enter is uploaded to a server.
Can I use it on my phone?
Yes, it is fully mobile-friendly and works in any modern browser on phone, tablet or computer.