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    Always synced: the tools on your board, their order and size.

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Protein Intake Calculator

Protein intake by body weight for general, active and athletic adults.

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Lower estimate

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Upper estimate

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General estimates only. Protein needs vary with health, diet and training.

Runs in your browser – your data never leaves your device Also available via our free API

How to use the Protein Intake Calculator

  1. 1 Enter the requested details.
  2. 2 Review the estimate and the limitations shown with it.

How the estimate works

Protein is needed for tissue maintenance and repair. This estimate uses 0.8 g/kg/day as a general adult reference and a 1.2–2.0 g/kg/day range for athletes. Needs vary by training, health and diet; it is not a prescription. Source: NIH Office of Dietary Supplements.

How to use this calculator

Enter the requested values and review the result alongside the limits of the estimate.

Important limitations

This result is for general information. Individual circumstances can change what is appropriate; consult a qualified professional when making health decisions.

Frequently asked questions

How does this calculator work?

Protein is needed for tissue maintenance and repair. This estimate uses 0.8 g/kg/day as a general adult reference and a 1.2–2.0 g/kg/day range for athletes. Needs vary by training, health and diet; it is not a prescription. Source: [NIH Office of Dietary Supplements](https://ods.od.nih.gov/factsheets/ExerciseandAthleticPerformance-HealthProfessional/).

Is this a diagnosis or personalized advice?

No. This is an informational estimate and does not replace professional advice.

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