Estimate daily calories for maintaining, losing, or gaining weight.
Estimate daily calories for maintaining, losing, or gaining weight.
Save or export your calculation result.
Standard mathematical and financial formulation used for verified calculation.
Calculate body mass index using height and weight with a simple category result.
Estimate daily calories your body burns at rest using the Mifflin-St Jeor equation.
Estimate healthy body weight reference ranges using Devine, Robinson, Miller, and Hamwi formulas.
Estimate body fat percentage, lean body mass, and fat mass using the US Navy tape method.
A common starting point is about 300 to 500 calories below maintenance, adjusted by progress.
This calculator adds a moderate surplus for lean gaining rather than an aggressive bulk.
Calories drive weight change, while protein, carbs, fats, and food quality influence performance, health, and adherence.
Estimate daily calories for maintaining, losing, or gaining weight. Enter the required values above to review the calculated output and supporting breakdown. Results update immediately as you adjust inputs.