I’d write the conversion rates for all those crazy box size measures to meters, because I have no idea if that is something the size of a telephone, a computer screen, a soccer ball or a baseball bat.
My source material gave me the measurements in Imperial. Any conversions would add either extraneously specific digits, or further uncertainty; eg, calling a foot “30.48 cm” or “30 cm”. But if you really want metric numbers—call it 60cm x 30cm x 20cm, plus or minus a minor fudge factor.
I’d write the conversion rates for all those crazy box size measures to meters, because I have no idea if that is something the size of a telephone, a computer screen, a soccer ball or a baseball bat.
My source material gave me the measurements in Imperial. Any conversions would add either extraneously specific digits, or further uncertainty; eg, calling a foot “30.48 cm” or “30 cm”. But if you really want metric numbers—call it 60cm x 30cm x 20cm, plus or minus a minor fudge factor.