BMI Calculator
Calculate Body Mass Index with metric or imperial units, category, and healthy weight range.
Estimate daily water needs in liters, milliliters, and glasses.
Hydration needs vary with body size, activity, and climate. This calculator starts from a common rule of thumb (about 35 ml per kg) and adjusts for activity and weather to suggest daily intake in liters, milliliters, and 250 ml glasses.
Educational wellness tool only — not medical advice. Consult a qualified healthcare professional for personal decisions.
≈ 35 ml × body weight (kg) + activity & climate adjustments
Example: 70 kg, moderate activity, temperate → roughly 3.2 L/day.
Fluids contribute overall, but water remains the best default; individual advice may differ.
Calculate Body Mass Index with metric or imperial units, category, and healthy weight range.
Estimate basal metabolic rate with Mifflin–St Jeor and Harris–Benedict formulas.
Estimate maintenance, weight-loss, and weight-gain calories with macro suggestions.
Classify blood pressure readings using AHA adult categories with recommendations.