Health Calculators
Macro Calculator
Estimate daily macronutrient grams from a calorie target and protein/fat preferences.
Daily calorie target used to allocate protein, fat, and carbohydrate grams.
Your intended daily protein amount in grams. The calculator counts protein at 4 calories per gram before estimating remaining carbohydrates.
Your intended daily fat amount in grams. The calculator counts fat at 9 calories per gram before estimating remaining carbohydrates.
Formula
Worked example
2,400 calories with 160 g protein and 70 g fat leaves about 255 g carbohydrates.
How to use this calculator
Start with calories, choose protein and fat targets, then let the calculator estimate the remaining carbohydrate allowance.
Use the result as a planning estimate, then compare nearby calculators in the same topic cluster for a fuller view.
Macro Calculator FAQ
What does this calculator estimate?
Split daily calories into estimated protein, fat and carbohydrate targets.
How should I use the result?
The result is a quick estimate based on the formula and inputs shown on the page.
What should I compare next?
Use the related links below to move through the topic cluster.