Conversion Factors and Tables

 

Multiply	By	To Obtain	Multiply By	To Obtain
inches	25.40	millimetres	0.03937	inches
feet	0.3048	metres	3.281	feet
yards	0.9144	metres	1.094	yards
miles (statute)	1.609	kilometres	0.6214	miles (statute)
square inches	645.2	square millimetres	0.00155	square inches
cubic inches	16.39	cubic centimetres	0.06102	cubic inches
cubic feet	0.02832	cubic metres	35.31	cubic feet
cubic yards	0.7646	cubic metres	1.308	cubic yards
pounds	0.4536	kilograms	2.205	pounds
pounds	0.0004536	metric tons	2205.	pounds
short tons	0.9072	metric tons	1.102	short tons
long tons	1.016	metric tons	0.9842	long tons
lbs. per foot	1.488	kgs. per metre	0.6720	lbs. per foot
lbs. per sq. in.	0.0007031	kgs. per sq. mm.	1422	lbs. per sq. in.
lbs. per sq. ft.	4.882	kgs. per sq. metre	0.2048	lbs. per sq. ft.
short tons per sq. in.	1.406	kgs. per sq. mm.	0.7112	short tons per sq. in.
long tons per sq. in.	1.575	kgs. per sq mm.	0.6349	long tons per sq. in.
lbs. per cu. ft.	16.02	kgs. per cu. metre	0.0643	lbs. per cu. ft.
Imperial gals.	4.546	litres	0.2200	Imperial gals.
U.S. gals.	3.765	litres	0.2642	U.S. gals.
cubic feet	28.32	litres	0.03531	cubic feet
feet	0.1667	fathoms	6.0	feet
miles (statute)	0.8684	miles (nautical Brit.)	1.1515	miles (statute)
cubic feet	6.229	Imperial gals.	0.1605	cubic feet
cubic feet	7.481	U.S. gals	0.1337	cubic feet
Imperial gals.	1.201	U.S. gals.	0.8327	Imperial gals.
cubic feet	62.4283	wt. of water in lbs.	0.01602	cubic feet
Imperial gals.	10	wt. of water in lbs. 62 degrees F	0.10	Imperial gals.
U.S. gals.	8.327	wt. of water in lbs. 62 degrees F	0.1201	U.S. gals.
diameter	3.1416	circumference	0.31831	diameter
degrees Fahr.	.5556 x (F degrees - 32)	degrees Celsius	(1.80 x C degrees) + 32	degrees Fahr.
Foot pounds	0.13826	kg m	7.233	Foot pounds
P.S.I.	0.006896	MPa (N/mn(2nd power)	145.038	P.S.I.
P.S.I.	7.0307 x 10(4th power)	kg/mn(2nd power)	1422.0	P.S.I
lbs.	0.004448	kN	224.8	lbs.
short tons	8.8968	kN	0.1124	short tons