Free · Health · Energy & Nutrition

Protein Calculator

Estimate daily protein recommendations from body weight and calorie needs using ADA, CDC, and WHO reference methods.

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Calculator inputs

Enter your values

Result

Your calculation

ADA recommendation
60 to 108 g/day
At least 1.0 to 1.8 g/kg
CDC calorie-share range
54 to 188 g/day
10% to 35% of estimated daily calories
WHO safe lower limit
50 g/day
0.83 g/kg

The CDC conversion follows the source calculator's 4.1 kcal per gram convention. Needs can differ with health, age, pregnancy, and training.

How to use this calculator

  1. Enter current measurements as accurately as practical.
  2. Calculate to see the estimate, range, and method details.
  3. Use the result as context, and discuss health decisions with a qualified clinician.

Use the result with context

Health results are educational estimates, not a diagnosis or treatment recommendation. A qualified clinician can interpret measurements in the context of your health.