ironroot

Protein Calculator

Work out a daily protein target for your goal.

  • Private
  • No sign-up
  • Works in your browser
Daily target
143 g
aim for around here
Low end
120 g
1.6 g/kg
High end
165 g
2.2 g/kg

Spread your intake across 45 meals of roughly 36 g each for best absorption.

What is the Protein Calculator?

Enter your bodyweight and goal to get a daily protein target in grams, based on common evidence-based ranges per kilogram of bodyweight.

How to use it

  1. 1Enter your bodyweight and choose kg or lb.
  2. 2Select your goal.
  3. 3Read your daily protein target range.

Common uses

  • Setting a daily protein goal
  • Planning meals around protein
  • Supporting muscle gain or fat loss
Please note: General guidance only, not medical or dietary advice. Individual needs vary — consult a professional if unsure.

Frequently asked questions

How much protein do I need?

Common ranges are roughly 1.2–1.6 g per kg for general health and 1.6–2.2 g per kg to build muscle. This tool applies ranges based on your goal.