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Health & Fitness Calculators
Health & Fitness Calculators
What is this tool?
A health and fitness workspace bundling two Health & Fitness Calculators tools: BMI with healthy weight range and daily water intake, and a BMR/TDEE-based calorie and macro split calculator.
When to use it
- Checking your BMI and a healthy weight range for your height
- Estimating your daily water intake target alongside your BMI
- Calculating your daily calorie needs (TDEE) for a weight goal
- Getting a macro split (protein/carbs/fat) to match a calorie target
- Reviewing both body-composition and nutrition numbers in one session
How to use it
- 1Open the BMI & Water tab and enter your height, weight and age
- 2Review your BMI, healthy weight range and suggested daily water intake
- 3Switch to Calories & Macros and enter your activity level and goal
- 4Review your estimated BMR, TDEE and suggested macro split
- 5Adjust any input to see the numbers recalculate instantly
Frequently asked questions
Are these calculators medical advice?
No — they provide general estimates for informational purposes only; consult a healthcare professional for personal medical or nutrition advice.
How accurate is BMI as a health measure?
BMI is a simple height/weight ratio — it doesn't account for muscle mass, bone density or body composition, so treat it as a rough indicator, not a diagnosis.
Is my health data sent anywhere?
No — every calculation runs locally in your browser and nothing is saved or transmitted.
What activity levels does the calorie calculator use?
Standard categories from sedentary to very active, each applying a different multiplier to your BMR to estimate TDEE.