The NHLBI BMI calculator estimates adult body mass index from height and weight and explains its limits as a health measure.
SailRabbit
SailRabbit provides calculators for basal metabolic rate, total daily energy expenditure and body mass index.
About SailRabbit
SailRabbit provides calculators for basal metabolic rate (BMR), total daily energy expenditure (TDEE), and body mass index (BMI). It was developed to provide estimates for a wider range of body types and lifestyles, with adjustable inputs for calories per pound of body fat and activity level factor.
The site states the calculator gives only a general idea of BMR and TDEE, as results depend on subjective methods and variables such as body fat percentage. It advises consulting a physician before changing diet or daily regimen.
Key features
- Calculates basal metabolic rate (BMR)
- Calculates total daily energy expenditure (TDEE)
- Calculates body mass index (BMI)
- Allows adjustment of calories per pound of body fat
- Allows adjustment of activity level factor
Best for: People who want general BMR, TDEE, and BMI estimates across different body types and lifestyles.
Good for
- Covers BMR, TDEE, and BMI calculators in one place
- Designed to account for different body types and lifestyles
Watch out for
- Provides only general estimates, not exact measurements
- Results depend on subjective inputs and variables
- Body fat percentage can be difficult to measure accurately
SailRabbit at a glance
- Website
- sailrabbit.com/bmr
- Category
- Health & Fitness › Health & Fitness Resources
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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