Fitness calculator
Protein Intake Calculator
Plan a protein target using a rate appropriate to your weight unit and goals.
Use matching units (for example, kilograms with g/kg). Typical targets vary; this is a planning estimate, not medical advice.
Daily protein
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How it works
Choose a rate from a qualified source appropriate to your units, health, activity, and goals. This is not medical advice.
Daily protein = body weight × target rate
Worked example
A 70 kg person using 1.6 g/kg gets a target of 112 g per day.
How to use this tool
- Enter the known values and choose units where available.
- Check the primary result and supporting details.
- Clear or replace an input to calculate another case.
Frequently asked questions
What happens with invalid or incomplete inputs?
The result remains blank until the required inputs form a finite, meaningful calculation. Zero denominators and physically impossible negative quantities are not calculated.
Can I use decimal values?
Yes. The tool accepts decimals and keeps full precision for the calculation while rounding the displayed result for readability.