Metric Conversion Coefficients
SPECIFICATION
UNIT
UNIT CONVERSION
MULTIPLICATION
FACTOR
Angle
degree
rad
0.01745329
minute
0.0002908882
second
0.000004848137
Weight
pound mass
kg
0.4535924
metric ton
1000
ton (short 2000 lb)
907.1817
slug
14.5939
Current Density
A/in2
A/mm2
0.001550003
A/m2
645.16
Flow Rate
ft3/h
L/min
0.1719175
gallon/hour
0.0630902
gallon/minute
3.785412
Square Measure
in2
m2
0.00064516
ft2
0.09290304
yd2
0.8361274
mm2
92903.04
acre
4046.873
Pressure (gas&liquid)
psi
kPa
6.894757
Ib/ft2
0.04788026
N/mm2
atmosphere
101.325
0.1450377
20.88543
0.001
Pressure (vacuum)
torr (mm Hg at 0C)
Pa
133.322
micron (µm Hg at 0oC
0.1333220
tırr
0.00750064
micron
7.50064
bar
14.50377
Tensile Strength
Yield Strength
MPa
0.006894757
lb/ft2
0.00004788026
1
145.0377
20885.43
Power
horsepower (550 ft lbt/s)
W
745.6999
horsepower (electric)
746
Btu/min (thermochemistry)
17.5725
Calorie/minute
0.06973333
foot pound-force/minute
0.02259697
Power Density
W/in2
W/m2
1550.003
Electrical Resistance
Amper * cm
Amper * m
0.01
100
Electrical Power
Pound-Force
N
4.448222
Kilogram-Force
9.806650
lbf
0.2248089
Energy Heat
Impact Energy
foot pound force
J
1.355818
Foot poundal
0.04214011
Btu
1054.35
calorie (thermochemistry)
4.184
Watt hour
3600
Volume
in3
m3
0.00001638706
ft3
0.02831685
yd3
0.7615549
mm3
16387.06
28316850
L
0.01638706
28.31685
galon
Rate of motion, Speed (linear)
in/min
m/sec
0.0004233333
ft/min
0.00508
mm/sec
0.4233333
5.08
mil/hour
km/hour
1.6099344
Heat input
J/in
J/m
39.37008
0.0254
Force
kilogram-force
9.80665
pound-force
Fracture toughness
Ksi-in1/2
MN.m3/2
1.098855
0.910038
Metal deposition rate
lb/h
kg/h
0.45 (appx.)
ka/h
2.2 (appx.)
Temperature
degree, Celsius tc
K
tK = tc + 273.15
degree, Fahrenheit, tF
tK = (tF + 459.67)/1.8
degree, Rankine, tR
tK = tR /1.8
C
tc = (tF-32)/1 8
kelvin, tK
tc = tK-273.15
Thermal conductivity
cal/[cm-s-C]
W/[m*K]
418.4
Wire feed speed
mm/s
2.362205
Length measures
in
m
mm
25.4
ft
0.3048
304.8
0.03937008
0.00328084
yd
0.9144
mil
1609.3
Density
pound mass / in3
kg / m3
27679.9
pound mass / ft3
16.01846