Calorie calculator
Work out how many calories you burn a day (TDEE) and how many to eat to maintain, lose weight or build muscle. Nothing you type leaves your browser.
Enter your weight, height and age to see your result.
Free, no card needed.
How is it calculated?
With the Mifflin-St Jeor equation for your basal metabolic rate, multiplied by an activity factor. It's the same formula behind the calorie goal in the CestaChef app.
What is TDEE?
Your total daily energy expenditure: the calories your body burns at rest (BMR) plus what you burn moving around and exercising.
Do you store my data?
No. The math runs in your browser: your weight, height and age are never sent to a server or saved.
Does it replace a dietitian?
No. It's an estimate; if you have a health condition or are aiming for a big change in weight, speak to your GP or a registered dietitian.