About MacroCalculator
MacroCalculator is a macro calculator with guides that show every step from BMR to grams of protein, carbohydrate and fat.
What the site does
The calculator turns your stats, or a calorie target you already know, into daily protein, carbohydrate and fat targets. It prints each step, so you can see how every number was reached and check it by hand. The guides explain the method behind it.
- Resting energy from Mifflin-St Jeor, or Katch-McArdle when you enter body fat
- Six activity levels, and goals for fat loss, maintenance and gain
- Protein set from body weight, fat from a share of calories, carbohydrate from what remains
- Minimum targets of 1,200 kcal for women and 1,500 kcal for men
Guides
How the Site Is Funded
MacroCalculator is free to use. It may show advertising served by Google AdSense to cover hosting and the time spent keeping the guides accurate. Ads never change a calculator result or a guide, and the site takes no paid reviews or sponsored placements. See the advertising disclosure.
Who writes and reviews
James Smith writes the guides and Sally A Zumwalt, MS reviews them. See the team page, the reviewer profile and the editorial policy.
What it is not
The calculator gives estimates for healthy adults. It is not medical advice and does not replace a doctor or dietitian. Read the medical disclaimer and the methodology for the limits.
Contact
Questions, corrections and feedback go through the contact page. Data handling is described in the privacy policy.