Calculator
How many calories do you need?
Your age, height, weight and how much you move set the calories that hold your weight.
Sex
Heightftin
How it works
Your resting needs come from the Mifflin-St Jeor equation (1990). A 2005 review found it the most accurate of the common equations. How active you are multiplies it, from 1.2 for mostly sitting to 1.9 for a physical job.
Any equation is a starting point. Eat at the number for two or three weeks and watch the trend of your weight. If it holds, that is your number.
2 sources
- Mifflin MD, St Jeor ST, et al. A new predictive equation for resting energy expenditure in healthy individuals. American Journal of Clinical Nutrition, 1990pubmed.ncbi.nlm.nih.gov
- Frankenfield D, Roth-Yousey L, Compher C. Comparison of predictive equations for resting metabolic rate in healthy nonobese and obese adults: a systematic review. Journal of the American Dietetic Association, 2005pubmed.ncbi.nlm.nih.gov
More calculators
Weigh in each morning on a Withings or any Apple Health scale and Gyroscope logs your weight and bodyfat on its own, free on any plan. Open Gyroscope




