70 kg x 0.8 g/kg
- Calories from protein
- 224 kcal
- Target factor
- 0.8 g/kg
- Weight
- 70 kg
Protein Calculator
Use this free protein calculator to estimate daily protein grams from body weight and common grams-per-kilogram targets.
Research-based formula Estimate limits shown Examples included Private history
Formula steps
- Choose a protein factor in grams per kilogram of body weight.
- Multiply body weight in kilograms by that factor.
- Adjust with professional guidance when medical conditions affect protein needs.
How to use the protein calculator
- Enter the requested measurements, dates, lab values, or workout details.
- Check that the units and formula assumptions match what the tool is asking for.
- Press the calculate button to see the answer, supporting metrics, and formula steps.
- Read the estimate with the health disclaimer in mind, then copy the result if you need it for notes.
Common uses
Estimate the RDA-style 0.8 g/kg protein target.
Compare active and strength-training targets.
Convert body weight to daily protein grams.
Use with macro and calorie planning.
Examples
56 g protein
96 g protein
120 g protein
Frequently asked questions
Quick answers about formulas, inputs, estimate limits, professional guidance, examples, and private in-browser history.
What can I use the Protein Calculator for?
Use it for quick educational estimates, planning, comparison, and trend checks. Health and fitness results should be interpreted with context, not as a diagnosis.
How does the Protein Calculator calculate the result?
Protein target = body weight in kilograms x selected grams of protein per kilogram.
Is this medical advice?
No. This page provides an educational estimate only. Talk with a qualified health professional before making medical, pregnancy, nutrition, medication, or safety decisions.
Are my health inputs private?
Yes. The calculator runs in your browser tab. Recent answers stay only on the page while you use it and are not sent to a server.