Enter the total surface area of an object and the total volume into the calculator to determine the surface to volume ratio.

## Volume Ratio Formula

The following formula is used to calculate a surface area to volume ratio.

VR = SA / V

• Where VR is the volume ratio
• SA is the total surface area
• V is the total volume

It’s important that the units for surface area and volume are consistent. For example, if the surface area is measure in ft^2, then the volume must be measured in ft^3.

## Volume Ratio Definition

A volume ratio is defined as the ratio of the total surface area to the total volume of an object or shape.

## Volume Ratio Example

How to calculate a volume ratio of a cube?

1. First, determine the length of the side.

For this example, we will say this is 2 for this example.

2. Next, determine the surface area.

The surface area of a cube with side 2 is 6*2^2 = 24.

3. Next, determine the volume.

Using the formula V = a ^3 we find the volume to be 2^3= 8.

4. Finally, calculate the volume ratio.

Using the formula above, we find the volume ratio to be 24/8 = 3.

## FAQ

What is a volume ratio?

A volume ratio is a measure of the ratio of surface area to volume.