Protein Calculator
Estimate your daily protein needs based on activity.
Result
Results are estimates for general information only and are not professional advice.
Daily protein
Protein needs depend on body weight and activity — from about 0.8 g/kg for sedentary adults up to 2.0 g/kg for athletes building muscle. This calculator estimates your target in grams per day.
Frequently Asked Questions
What is the Protein Calculator?
Estimate your daily protein needs based on activity. It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Protein Calculator?
The Protein Calculator asks for the following values (2): Weight (kg), Activity. Fill them in and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Protein Calculator?
The Protein Calculator uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Protein Calculator free, and do I need an account?
Yes. The Protein Calculator — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.