Calculator
Calorie calculator
Basal and total energy expenditure using the Mifflin-St Jeor formula — plus a target if you want to plan a moderate deficit. No crash mode: the deficit is capped at 500 kcal/day.
Important
All results are estimates from published approximation formulas — not medical advice and not a diagnosis. If you have a medical condition, take medication, or are unsure, talk to your doctor first.
Related reading
From numbers to a plan
The app turns your details into a weekly plan that keeps adapting to you — including a protein anchor and heart-rate zones in the running module. Sign in via email login (beta, free).
Go to the app (closed beta) →