Use SA/V Ratio when you need to compute the surface-area-to-volume ratio of a cube with the given side length, where area is 6 times the square of the side and volume is its cube, giving 6 over the side length. Enter Side length using the definitions and units below so the result can be reproduced.

Side length

Cube side length; must be greater than zero.

The published tool contract uses this rule: Compute the surface-area-to-volume ratio of a cube with the given side length, where area is 6 times the square of the side and volume is its cube, giving 6 over the side length.

SA/V ratio

Surface-area-to-volume ratio in inverse millimetres.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small.

Retain the original Side length values and their units alongside the result. BSA DuBois is useful when you instead need to estimate body surface area with the DuBois formula. BSA Mosteller provides another view by helping you estimate body surface area with the Mosteller formula.

• BSA DuBois

  Estimate body surface area with the DuBois formula.

• BSA Mosteller

  Estimate body surface area with the Mosteller formula.

• Cell Surface Area Sphere

  Compute the surface area of a spherical cell from its radius in micrometers.