Linear expansivity, area expansivity and volume or cubic expansivity are all parameters that are being governed by **heat energy**. All three parameter is dependent on temperature rise which is primarily in **Celsius** unit of temperature.

Linear expansivity additionally depends on the original length and final length, area expansivity additionally depends on the original area and final area and lastly, cubic or volume expansivity depends on the original volume and final volume.

The formula for calculating **linear expansivity **is ^{(l2 – l1)} / _{l}_{1}θ

l_{2} represents the final length.

l_{1} represents the original length.

θ represents the temperature rise in Celsius.

The formula for calculating **area expansivity** is ^{(A2 – A1)} / _{A}_{1}θ

A_{2} represents the final area.

A_{1} represents the original area.

θ represents the temperature rise in Celsius.

The formula for calculating **volume or cubic expansivity** is ^{(V2 – V1)} / _{V}_{1}θ

V_{2} represents the final volume.

V_{1} represents the original volume.

θ represents the temperature rise in Celsius.