How to use the Protein Calculator
Estimate a daily protein target from body weight and the selected grams-per-kilogram factor. It includes Maintain, Gradual loss, Gradual gain workflows, so choose the one that matches the values you actually know. Use it to understand an educational estimate and the inputs behind it, not as a diagnosis or treatment decision.
Step by step
- For the Protein, enter weight, height, age, gender, activity. Keep each value in the unit displayed beside its field.
- Review the selected Protein workflow and inputs, then read protein target in the result panel.
- Change one Protein assumption at a time to compare scenarios. Use Reset to restore this tool's worked example values.
How the calculation works
Mifflin–St Jeor or Katch–McArdle BMR, activity expenditure, goal adjustment, and nutrient allocation.
Worked example
In the Protein worked example, weight 75 kg, height 175 cm, age 35 years, gender Male produces protein target of 120.0 g/day. Mifflin–St Jeor BMR × activity with maintenance adjustment. Review the displayed units before comparing the result.
Understanding the result
The Protein reports protein target. Use it to understand an educational estimate and the inputs behind it, not as a diagnosis or treatment decision. Educational estimate only; it cannot diagnose a condition or replace advice from a qualified health professional.
How to check the answer
Check the Protein estimate by confirming the units and supported ranges for weight, height, age. Compare protein target with another published method or direct measurement when available, and ask a clinician before using it for a health decision.
Common questions
What does the Protein calculate?
Estimate a daily protein target from body weight and the selected grams-per-kilogram factor.
Which Protein inputs have the biggest effect?
protein target responds directly to weight, height, age, gender, activity. Change one input while holding the others constant to see its effect.
Is the Protein result exact?
Educational estimate only; it cannot diagnose a condition or replace advice from a qualified health professional. Recheck weight, height, age and use protein target only for a decision where that level of precision is appropriate.