Macro Split
Protein, carbs and fat grams for a calorie target.
Read the maths behind this tool: How Calories Are Calculated: Mifflin-St Jeor, Explained
How it works
Protein, carbs and fat grams for a calorie target. Enter your numbers and the result updates as you type — nothing is sent to a server.
Is this free?
Yes — no account, no ads, no limits.
How accurate is it?
It applies the standard formula shown on the page; rounding is to two decimals.