Protein Intake Calculator
Fill in the values and the answer updates as you type.
How the Protein Intake Calculator works
Uses 0.8, 1.3, or 1.8 g of protein per kg of body weight. People with kidney disease or special diets should follow medical advice.
Inputs and results
The Protein Intake Calculator takes 2 inputs and gives 2 results.
What you enter
- Body weight (kg) — starts at 70.
- Activity level — starts at Active. Choose from: Sedentary, Active and Muscle building.
What you get
- Daily protein (g)
- Grams per kg
Example: Protein Intake Calculator with the starting values
With body weight 70 kg and activity level Active, the calculator returns:
| Daily protein (g) | 91 |
|---|---|
| Grams per kg | 1.3 |
Change any value above and the results update straight away.
Protein Intake Calculator FAQ
How do I use the Protein Intake Calculator?
Enter body weight and activity level in the fields, then read daily protein (g) and grams per kg in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Protein Intake Calculator calculate?
Daily protein target for your activity level. It returns daily protein (g) and grams per kg from the 2 values you provide.
What values does the Protein Intake Calculator start with?
It opens with body weight 70 kg and activity level Active so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Protein Intake Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Protein Intake Calculator for medical or health decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm medical or health decisions with a qualified professional. See the Disclaimer for more.