Body Surface Area Calculator

Get a quick body surface area calculator estimate from the values you enter, with a simple explanation of the calculation.

Height (in centimeters): Weight (in kilograms):

Result:

How it works

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

This is a general estimate, not medical advice. For important health decisions, review the result with a qualified professional.

Frequently Asked Questions FAQ

What does the Body Surface Area Calculator calculate?

The Body Surface Area Calculator helps you work through the calculation using the values you enter and presents the result in a simple format.

What formula does it use?

The calculator uses the standard method relevant to this calculation. The formula shown on this page is: Mosteller BSA = √[(height(cm) × weight(kg)) ÷ 3600]

What values should I enter?

Enter the requested numbers or expressions exactly as shown by the calculator. Check signs, units, and decimal values before calculating.

Can I use this calculator for learning?

Yes. It can be useful for checking examples, homework, practice, and understanding how a formula is applied to real values.

Why might my answer be different?

A different result can come from rounding, input values, units, or using a different formula or calculation method. Compare the steps as well as the final answer.

How can I check the result?

Review the inputs, apply the displayed formula manually to a simple example, and compare the result with the calculator output. This is especially useful when studying.

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