Calorie Calculator
Two numbers: what your body burns at rest, and what it burns with your actual week.
Read the maths behind this tool: How Calories Are Calculated: Mifflin-St Jeor, Explained
Why Mifflin-St Jeor
It is the most accurate simple equation for the general population — better than Harris-Benedict in validation studies, and it needs only four inputs.
The activity multiplier is the weak point
People overestimate their activity. If the scale does not move after two weeks, lower the multiplier before cutting food.
Is this a diet plan?
No — it is an energy estimate. Macronutrients and food quality are separate decisions.
Should I eat back exercise calories?
The multiplier already includes activity. Logging workouts twice double-counts.