Niet Metrische Eenheden & Symbolen
Naam	Eenheid en Veelvouden	Symbolen	Opmerkingen
Lengte	inch	in ('')	1 in  =  25.4 mm
	foot	ft (')	1 ft  =  0,3048 m
	yard	yd	1 yd  =  0,9144 m
	mile	mile	1 mile  = 1609,344 m
	mile nautical	mile	1 nautical mile  =  1852 m
	cable	cable	1 cable  =  0,1 nautical mile
Oppervlakte	square inch	in2	1 in2 =  6,4516 cm2
	square foot	ft2	1 ft2 = 0,0929030 m2
	square yard	yd2	1 yd 2  =  0,836127m2
Volume	cubic inch	in3	1 in3  =  16,3871 cm3
	cubic foot	ft3	1 ft3=  28,3168 dm3
	cubic yard	yd3	1 yd3 =  0,764555 m2
	gallon (UK)	gal (UK)	1 gal (UK) = 4,54609 dm3
	gallon (US)	gal (US)	1 gal (US) = 3,78543 dm3
Massa	ton	ton	1 ton  =  1016,05 kg
	pound	lb	1 lb  =  0,45359237 kg
	ounce	oz	1 oz  =  28,3495 g
	grain	gr	1 gr  =  64,7989 mg
Kracht	pound-force	lbf	1 lbf  =  4,44822 N
	poundal	pdl	1 pdl  =  0,318255 N
Moment	pound-force inches	lbf/in
	pound-force feet	lbf/ft
Druk	pound-force per square inch	lbf/in2	1 lbf/in2 =  6894,76 N/m2
Temperatuur	fahrenheit	°F	1 =  9/5 t°C + 32
Arbeid	foot pound-force	ft lbf	1 ft lbf  =  1,35582 J
	foot poundal	ft pdl	1 ft pdl  =  0,0421101 J
Warmtehoeveelheid	British thermal unit	Btu	1 Btu  =  1055,06 J
Vermogen	foot poundal per second	ft pdl/s	1 ft pdl/s  =  0,0421401 W
	British thermal unit per hour	Btu/h	1 Btu/h =  0,293071 W
	horse power	HP	1 HP  =  745,700 W