Body Surface Area Calculator

Estimate body surface area (Mosteller formula).

Weight

Height

Body surface area 1.845

Formula: BSA = √(height(cm) × weight(kg) ÷ 3600)

Step-by-step with your numbers:

1. Values used:

2. Weight = 70

3. Height = 175

5. Body surface area = 1.845

Did we solve your problem today?

Body surface area is used in medicine to scale doses and physiological values.

The math behind it

Mosteller formula: BSA (m²) = √(height in cm × weight in kg ÷ 3600).

175 cm, 70 kg → 1.84 m².

Why used?

Many clinical measures scale better with surface area than with weight alone.