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Health & fitness / Protein

Protein Calculator

Estimate daily protein grams by multiplying body weight by a selected grams-per-kilogram target. The target is configurable because protein needs depend on age, activity, health, and clinical goals. Daily protein = weight in kg × selected grams of protein per kg per day. This calculator does not infer an optimal target from a medical diagnosis.

Your inputs

Make it your own
Calculator settings
kg

g/kg/day

Your result
84
g/day
Daily protein estimate
Selected factor
1.2 g/kg/day

Choose a target appropriate to your health and activity with professional guidance when needed.

Example inputs shown. Adjust them to explore.

A familiar situation

Translate a chosen grams-per-kilogram protein target into a daily amount for meal planning.

How to use this calculator

  1. Enter weight, protein target.
  2. Select Calculate to see the answer and its breakdown.
  3. Keep a scenario, change an input and compare the results.

Use consistent units and check the assumptions below before applying the result.

How protein is calculated

Daily protein = weight in kg × selected grams of protein per kg per day. This calculator does not infer an optimal target from a medical diagnosis. At 70 kg and a selected 1.2 g/kg target, the estimate is 84 g/day.

Protein grams/day=weight(kg)×selected g/kg/day.
A worked example

At 70 kg and a selected 1.2 g/kg target, the estimate is 84 g/day.

Assumptions & useful context

Choose a target appropriate to your health and activity with professional guidance when needed.

Health calculations are estimates for education. They cannot diagnose a condition or replace a clinician’s assessment. Individual needs vary, especially during pregnancy, illness and growth.

Frequently asked questions

Is a higher target always better?

No. Individual needs and kidney or other health conditions matter.

Does this calculate meal portions?

No. It gives a daily gram estimate only.

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