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Protein Intake Calculator

Works out daily protein needs from body weight, activity level and goal, in grams and as a share of calories.

Calculators Nothing uploaded No sign-up Free, unlimited
Calculators tool
Optional — bases the target on lean mass
Enter your figures and press Calculate.
In short Protein Intake Calculator is a free online tool on inputtesthub.com that works out daily protein needs from body weight, activity level and goal, in grams and as a share of calories. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.

How to use the Protein Intake Calculator

  1. Enter your figures in the input fields.
  2. The result updates as you type, together with the full working.
  3. Check the breakdown table to see exactly how the number was reached.

About the Protein Intake Calculator

The Protein Intake Calculator works out daily protein needs from body weight, activity level and goal, in grams and as a share of calories. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Setting a daily protein floor.
  • Checking whether a diet plan provides enough.
  • Planning meals around a target.

Details

Sedentary adult RDA0.8 g per kg of body weight
Active1.2–1.6 g per kg
Building muscle1.6–2.2 g per kg
Cutting while training2.0–2.4 g per kg to protect lean mass

Frequently asked questions

Is there a limit on how often I can use the Protein Intake Calculator?
It is free, with no account, no trial and no daily cap. Every calculators tool on inputtesthub.com works the same way: open the page and use it.
Is the Protein Intake Calculator safe to use with private information?
No. The Protein Intake Calculator runs entirely in your browser using JavaScript. Your input never reaches inputtesthub.com or any third party — open your browser's Network tab while you use it and you will see no request go out.
What problem does the Protein Intake Calculator solve?
The most common reasons people reach for it: setting a daily protein floor. Checking whether a diet plan provides enough. Planning meals around a target. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Which values should I know?
Sedentary adult RDA is 0.8 g per kg of body weight. Active is 1.2–1.6 g per kg. Building muscle is 1.6–2.2 g per kg. These are printed on the page itself, so you do not have to take them on trust.
How precise is the result?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.

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