Protein Calculator
Calculate daily protein grams from body weight and a factor you choose.
Formula
Protein (g/day)=weight (kg)×factor (g/kg/day).
Weight: 154 lb · Protein amount ≈ (154 lb × 0.45359237 kg/lb)×(0.8)
How to use
- Enter weight.
- Enter your chosen g/kg/day factor.
- Read daily grams.
Examples
- 70 kg × 0.8 g/kg/day = 56 g/day.
Frequently asked questions
Why is the example 0.8?
It is the IOM 2005 adult RDA factor, not a universal or individualized target.
Who needs individual advice?
Children, pregnancy, athletes and people with kidney or other disease may have different needs.
Is this medical advice?
For reference only; it does not replace a clinician.
Sources
Updated: