Nutritional Engine
Calorie Calculator: Estimate Your Daily Needs
The gold standard Mifflin-St Jeor formula at your fingertips.
Compute your exact daily caloric targets for sustainable weight management.
The gold standard Mifflin-St Jeor formula at your fingertips.
Compute your exact daily caloric targets for sustainable weight management.
The American Dietetic Association confirmed the Mifflin-St Jeor formula as the most accurate estimation of resting metabolic rate in healthy individuals.
It factors age, sex, weight, and height with clinical precision.
Proven more accurate than the older 1919 Harris-Benedict equation.
Our calculator outputs clear tiers:
• Maintenance Calories (Weight stability)
• Mild Weight Loss (-250 kcal/day, 0.5 lb/wk)
• Standard Weight Loss (-500 kcal/day, 1.0 lb/wk)
• Extreme Loss (-1,000 kcal/day, 2.0 lb/wk)
A 500 kcal deficit produces approximately 1 lb of fat loss per week.
Discover how many calories your body needs to thrive each day.
Educational tool only. Does not replace individualized clinical diagnosis.