Ducting - Conversion Factors

CONVERSION FACTORS

USED FOR	IMPERIAL UNIT	METRIC UNIT	FACTOR
Length	inch	mm	25.4
Length	Foot	m	0.3048
Mass	oz	gm	28.3495
Mass	lb	kg	0.454
Mass	ton	t	1.016
Volume	ins	cm	16.367
Volume	ft	m	0.02832
Pressure	lb f/in	Pa (N/m)	6894.76
Pressure	lb f/in	K Pa	6.894
Pressure	lb f/in	Kg/cm	0.0703
Pressure	lb f/in	N/mm	0.006894
Pressure	ton f/in	M Pa	15.448
Pressure	ton f/in	Kp/mm	1.575
Pressure	ins H20	mm H20	25.4
Pressure	ins H20	Pa	249.089
Pressure	ins H20	Kp/cm	0.00254
Pressure	ins Hg	Pa	3386.39

Specialist Ducting
Supplies Limited

Craven House,
Steeton Grove,
Steeton,
Keighley,
West Yorkshire
BD20 6TT

T: (01535) 656656

F: (01535) 656321

E: info@sdslimited.co.uk

cert no. RS 32240

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