equivalentsize

noun
UK /ɪˈkwɪvələnt saɪz/
US /ɪˈkwɪvələnt saɪz/

The same size as something else.

The two boxes are of equivalent size, so either one will fit on the shelf.


OTHER MEANINGS

2. A size that is considered equal in value or amount to another.

The equivalent size of the two plots made the trade fair.

3. A standard size used to replace another in a different system of measurement.

She found the equivalent size in European shoes before ordering.

4. The state of two things being the same size for comparison.

The chart shows the equivalent size of each planet.