the measurements of a round are not measured in that way, nor does the size of the gun have anything to do with how powerful it is
No, but one of the designs for the King Tiger had a 150mm gun! The King Tigers have only ever been armed with 88mm gun.
1cm = 10mm => 150mm = 15cm
150mm is equivalent to 15 centimeters or approximately 6 inches.
They are the same measurement. 15cm = 150mm (conversion is 1cm=10mm)
150mm
150mm
1litre
V = 1,000 cm3
A square that measures 10cm on each side has an area of 100 square centimeters. This is calculated by multiplying the length of one side by itself (10cm x 10cm = 100 sqcm). The unit for area is always squared, so the area of a 10cm x 10cm square is 100 sqcm.
1m2
It is 15 cm
150mm