OhMyCalc

Macro Calculator

Calculate protein, fat, and carb ratios from calories.

How to Use the Macro Calculator

  1. Enter your personal measurements (weight, height, age, etc.).
  2. Select any relevant options such as gender or activity level.
  3. Click Calculate or view the instant result.
  4. Review your result and the interpretation or category it falls into.

Quick Reference

FromTo
Sedentary~1,800–2,000 kcal/day
Moderate activity~2,200–2,400 kcal/day
High activity~2,600–3,000 kcal/day
Protein0.8–1.2 g/kg body weight
Carbohydrates45–65% of calories
Fats20–35% of calories

Use Cases

Formula

Calculate protein, fat, and carb ratios from calories.

Frequently Asked Questions

How to use?
Enter the data and click the calculate button.
Calculation accuracy?
Calculations are performed with high precision.
Is it free?
Yes, all calculators are completely free.