Imperial equivalents

Metric	Imperial Equivalent
30-40cm	12″-18″
40-60cm	18″-2ft
60-90cm	2-3ft
90-120cm	3-4ft
120-150cm	4-5ft
150-180cm	5-6ft
180-210cm	6-7ft
210-240cm	7-8ft
240cm+	8ft+