# BMI-Calculator.net

> BMI-Calculator.net is a free health and body metrics toolkit with 18 calculators covering BMI, BMR, TDEE, body fat, ideal weight, body shape indices, and more. All calculators are available in 5 languages (English, Dutch, German, French, Spanish) and as embeddable widgets.

## Calculators

- [BMI Calculator](https://www.bmi-calculator.net/): Calculate Body Mass Index from height and weight with category classification (underweight, normal, overweight, obese)
- [BMI Calculator for Children](https://www.bmi-calculator.net/bmi-calculator-for-children/): Calculate BMI percentile for children and teens using CDC growth charts with age and gender
- [BMR Calculator](https://www.bmi-calculator.net/bmr-calculator/): Calculate Basal Metabolic Rate using multiple formulas (Harris-Benedict, Mifflin-St Jeor, Schofield, Oxford, Katch-McArdle)
- [TDEE Calculator](https://www.bmi-calculator.net/tdee-calculator/): Calculate Total Daily Energy Expenditure based on BMR and activity level
- [Body Fat Calculator](https://www.bmi-calculator.net/body-fat-calculator/): Estimate body fat percentage using the US Navy method from neck, waist, and hip measurements
- [Ideal Weight Calculator](https://www.bmi-calculator.net/ideal-weight-calculator/): Calculate ideal body weight using 7 formulas (Devine, Robinson, Miller, Hamwi, Broca, Lemmens, BMI range)
- [Waist-to-Hip Ratio Calculator](https://www.bmi-calculator.net/waist-to-hip-ratio-calculator/): Assess cardiovascular risk from waist and hip circumference
- [Waist-to-Height Ratio Calculator](https://www.bmi-calculator.net/waist-to-height-ratio-calculator/): Evaluate health risk using waist-to-height ratio (strongest cardiovascular predictor)
- [Lean Body Mass Calculator](https://www.bmi-calculator.net/lean-body-mass-calculator/): Calculate fat-free body mass using Boer, James, and Hume formulas
- [BSA Calculator](https://www.bmi-calculator.net/bsa-calculator/): Calculate Body Surface Area using Du Bois, Mosteller, Haycock, Gehan-George, and Boyd formulas
- [Calories Burned Calculator](https://www.bmi-calculator.net/calories-burned-calculator/): Estimate calories burned during 100+ activities using MET values
- [Weight Loss Calculator](https://www.bmi-calculator.net/weight-loss-calculator/): Plan weight loss timeline with daily calorie deficit and target date estimation
- [BRI Calculator](https://www.bmi-calculator.net/bri-calculator/): Calculate Body Roundness Index from waist circumference and height
- [ABSI Calculator](https://www.bmi-calculator.net/absi-calculator/): Calculate A Body Shape Index to assess mortality risk independent of BMI
- [RFM Calculator](https://www.bmi-calculator.net/rfm-calculator/): Calculate Relative Fat Mass as a more accurate alternative to BMI
- [FFMI Calculator](https://www.bmi-calculator.net/ffmi-calculator/): Calculate Fat-Free Mass Index to evaluate muscularity relative to height
- [Ponderal Index Calculator](https://www.bmi-calculator.net/ponderal-index-calculator/): Calculate Ponderal Index (height-adjusted BMI) for better cross-height comparison
- [Conicity Index Calculator](https://www.bmi-calculator.net/conicity-index-calculator/): Calculate Conicity Index to assess abdominal fat distribution

## Health Assessment

- [Health Score](https://www.bmi-calculator.net/health-score/): Combined 0-100 health score from up to 5 metrics (WHtR, body fat, BMI, WHR, activity level) with evidence-based weighting

## Reference Pages

- [BMI Chart](https://www.bmi-calculator.net/bmi-chart.php): Visual BMI reference chart with weight categories by height
- [BMI Formula](https://www.bmi-calculator.net/bmi-formula.php): Explanation of BMI calculation formulas (metric and imperial)
- [BMI Classification](https://www.bmi-calculator.net/bmi-classification/underweight/): Detailed information on BMI categories (underweight, normal, overweight, obesity classes 1-3)
- [BMR Formula](https://www.bmi-calculator.net/bmr-calculator/bmr-formula.php): Comparison of BMR calculation methods
- [Harris-Benedict Equation](https://www.bmi-calculator.net/bmr-calculator/harris-benedict-equation/): Detailed explanation of the Harris-Benedict equation for calorie needs
- [Body Fat Chart](https://www.bmi-calculator.net/body-fat-calculator/body-fat-chart.php): Body fat percentage ranges by age and gender
- [Body Fat Formula](https://www.bmi-calculator.net/body-fat-calculator/body-fat-formula.php): US Navy body fat calculation method explained
- [Ideal Weight Formulas](https://www.bmi-calculator.net/ideal-weight-calculator/devine-formula/): Individual formula pages for Devine, Robinson, Miller, Hamwi, Broca, Lemmens methods
- [Recommended Daily Allowance](https://www.bmi-calculator.net/bmr-calculator/recommended-daily-allowance/): RDA reference tables for vitamins, minerals, and amino acids

## Embeddable Widgets

- [Widget Generator](https://www.bmi-calculator.net/widget/): Create customizable, embeddable calculator widgets for any website with live preview and copy-paste embed code. All 18 calculators available with 5 themes, color customization, and multi-language support.

## AI Integration

- [WebMCP Tools](https://www.bmi-calculator.net/assets/js/webmcp.js): JavaScript file registering structured tools for AI agents via the Chrome navigator.modelContext API, including BMI calculation, BMR calculation, body fat estimation, ideal weight lookup, and more

## Optional

- [Articles](https://www.bmi-calculator.net/articles/): Health and fitness articles covering BMI, nutrition, weight management, and exercise
- [Disclaimer](https://www.bmi-calculator.net/disclaimer.php): Medical disclaimer - all calculators provide estimates for educational purposes only
- [Contact](https://www.bmi-calculator.net/contact.php): Contact form