// health

♡ Health

Body composition, energy, and fitness — every number shown with its working.

BMI Calculator BMI = weight (kg) / [height (m)]²

Body Fat Calculator US Navy: men 86.010·log₁₀(waist−neck) − 70.041·log₁₀(height) + 36.76

Ideal Weight Calculator Devine: men 50 kg + 2.3 kg/inch over 5 ft · women 45.5 kg + 2.3 kg/inch

Calorie Calculator Target ≈ TDEE ± a moderate adjustment (shown as a range)

Water Intake Calculator Water (L) = weight(kg)·0.033 + (exercise min / 30)·0.35, ×climate

Heart Rate Zone Calculator Max HR = 220 − age · Karvonen: target = HRR·%I + resting

BMR Calculator BMR = 10·w(kg) + 6.25·h(cm) − 5·age (+5 male / −161 female)

TDEE Calculator TDEE = BMR × activity factor (1.2 sedentary … 1.9 extra active)