Specifications, Formulae, Tables
International Unit System

Conversion of Imperial/American units into SI units [t-head1-pg]

Length
 
1 cm
 
1 m
 
 
 
1 m
 
1 km
 
1 km
0.3937 in
3.2808 ft
1.0936 yd
0.6214 mile Surface mile
0.5399 mile Nautical mile
Weight
 
1 g
 
1 kg
 
 
 
1 kg
 
1 t
 
1 t
15.43 grain
35.27 ounce
2.2046 lb.
0.9842 long ton
1.1023 short ton
Area
 
1cm2
 
1 m2
 
 
 
1 m2
 
1 m2
 
1 km2
0.1550 sq.in
10.7639 sq.ft
1.1960 sq.yd
0.2471  · 10–3 acre
0.3861 sq.mile
Volume
 
1cm3
 
1 l
 
 
 
1 m3
 
1 m3
 
1 m3
0.06102 cu.in
0.03531 cu.ft
1.308 cu.yd
264.2 gal (US)
219.97 gal (UK)
Force
 
1 N
 
1 N
 
1 N
 
1 N
0.2248 lb
0.1003   ·  10–3 long ton (UK)
0.1123   ·  10–3 short ton (US)
7.2306 pdl (poundal)
Speed
 
1 m/s
 
1 m/s
 
1 m/s
 
 
 
1 m/s
 
 
3.2808 ft/s
196.08 ft/min
1.944 knots
2.237 mph
 
Pressure
 
1 bar
 
1 bar
 
1 bar
 
 
 
1 bar
 
 
14.50 psi
29.53 in Hg
33.45 ft H2O
401.44 in H2O
 
Energy, Work
 
1 J
 
1 J
 
 
 
1 J
 
 
0.3725 · 10–6 HPh
0.9478  · 10–3 BTU
0.5263 ·  10–3 PCU


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