Free fitness tool

Protein Calculator for Weight Loss, Muscle Gain, and Maintenance

Estimate a daily protein range based on body weight and goal, then use ZenFit AI to connect it to meals, macros, and training.

Inputs

  • body weight
  • goal
  • meals per day

Outputs

  • daily protein range
  • protein per meal
  • macro context
  • meal planning starting point
Build meals around protein