Calorie Calculator

Gender

Male Female

Age

Years

Units

Metric (kg, cm) US/Imperial (lb, ft/in)

Activity Level

Weight (kg)

Height (cm)

Calorie Calculator – Quick Cheat Sheet

BMR (Mifflin–St Jeor): Male = 10×kg + 6.25×cm − 5×age + 5, Female = 10×kg + 6.25×cm − 5×age − 161.
TDEE = BMR × activity factor. Common factors: 1.2, 1.375, 1.55, 1.725, 1.9.
Targets shown are examples (±250/±500 kcal). Always consider medical guidance for weight change.
Unit tips: 1 lb = 0.45359237 kg; 1 in = 2.54 cm; 1 ft = 12 in.
Validation: age 5–120, height ≤ 280 cm, weight ≤ 400 kg.

Notes & assumptions

Equations estimate energy needs; individual variation can be substantial.
TDEE factors approximate typical weekly training loads; occupational activity may require adjustments.
All calculations run locally in PHP; no data is uploaded.

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