IIFYM Calculator

If It Fits Your Macros calculator. Flexible dieting approach for weight loss or muscle gain.

Understanding Macros

IIFYM: Hit your macro targets and eat foods you enjoy

The Big Three

  • Protein: 4 cal/g - builds muscle
  • Carbs: 4 cal/g - energy for workouts
  • Fat: 9 cal/g - hormones, brain function

Frequently Asked Questions

What is IIFYM?
If It Fits Your Macros - a flexible dieting approach focusing on macro totals, not specific foods.

Does IIFYM work for weight loss?
Yes! As long as you stay in a calorie deficit and hit protein targets.