Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Nutrition
BMR Calculator
Estimate your basal metabolic rate (BMR) — the calories your body burns at complete rest — using the revised Harris-Benedict equation. The starting point for calculating how many calories you need to eat to lose, maintain, or gain weight.
Fill in the required fields to see your result.
Nutrition
BMI Calculator
Calculate Body Mass Index (BMI) from weight and height — the most widely used screening number for weight-related nutritional and metabolic risk. A first-pass indicator, not a diagnosis.
Fill in the required fields to see your result.
Key differences
| BMR Calculator | BMI Calculator | |
|---|---|---|
| Category | Nutrition | Nutrition |
| Inputs required | 4 | 2 |
| Result | Your BMR (calories/day) | Your BMI |
| What it does | Estimate your basal metabolic rate (BMR) — the calories your body burns at complete rest — using the revised Harris-Benedict equation. The starting point for calculating how many calories you need to eat to lose, maintain, or gain weight. | Calculate Body Mass Index (BMI) from weight and height — the most widely used screening number for weight-related nutritional and metabolic risk. A first-pass indicator, not a diagnosis. |