6 www.techno-isel.com Technical Information
TORQUE 1) Conversion Units, SI and Metric
Conventional Inch Unit Metric Unit Quantity SI Unit Conversion Factors Length Area Mass Force Stress Pressure Torque Work Power Velocity Acceleration Inch Inch
Square Inch Inch2 Pound
Mass lb Pound Force lbf
Pounds Per Square
Inch lbf / inch2
Inch• Pounds
lbf•Inch lbf• ft / min
Feet Per
Second ft / sec Feet Per Second
Squared ft / sec2
Meter m
Square cm cm2 Kilogram
Mass kg Kilogram Force kgf
Kilograms Per Square
cm kgf / cm2
Kilogram-Meters
kgf•m kgf• m/s Meters Per Second
m / sec Meters
Per Second Squared
m / sec2
Meter m
Square Meter m2 Kilogram
Mass kg Newton N
Pascal N / m2 Pa
Newton-Meters
N• m N• m / s Meters Per Second
m / sec Meters
Per Second Squared m / sec2 1 inch = 25.4 mm 1
mm = 0.03937 inch 1 m = 3.2808 ft
1 ft = 0.3048 m 1
m2 = 10.764 ft2
1 ft2 = 0.092903
m2 1
inch2 = 6.4516 cm2
1 cm2 = 0.155
inch2 1
lb = 0.45359237 kg 1 kg = 2.2046 lb
1 kgf = 9.80665 N 1
N = 0.1019716 kgf 1 N = 0.224809 lbf
1 lbf = 0.45359237 kgf 1 lbf = 4.44822 N 1
kgf = 2.2046 lbf 1
MPa = 106 N/m2 =
1 N/mm2 1 kPa = 103
N / m2 1 lbf/inch2
= 0.070307 kgf/cm2 1 lbf/inch2
= 7.0307•10–4
kgf/mm2 1 lbf/inch2=6.8947•10–3 N/mm2 1 kgf/cm2=14.2233 lbf/inch2 1 kgf/cm2=9.80665•10–2 N/mm2 1
kgf•cm = 9.80665•10–2 N•m
1 N•m = 8.85 lbf•inch 1 N•m = 10.19716 kgf•cm
1 lbf•inch = 1.1521 kgf•cm 1 kgf•cm = 0.8679 lbf•inch
1 lbf•inch = 0.1129848 N•m 1 kgf•m = 9.80665 N•m
1 kW = 1000 N•m / s
1 kW = 60000 N•m / min
1 kW = 44220 lbf•ft / min
1 kW = 1.34 hp 1
hp = 75 kgf•m / s 1
hp = 44741 N• m / min 1 hp = 33000 lbf•ft / min
1 hp = 0.7457 kW 1
ft / sec = 0.3048 m/sec 1 inch / sec =
2.54 cm/sec 1 ft / min = 0.00508 m/sec
1 mile/hr = 0.44704 m/sec 1 km/hr = 0.27777 m/sec 1
mile/hr = 1.609344 km/hr 1 ft / sec2 = 0.3048 m / sec2
Multiply By To Obtain dy•cm
1 1.020 x 10–3 10–3 10–7 1.416
x 10–5 8.850
x 10–7 7.375
x 10–8 g•cm 980.7 1
9.807 x 10–1
9.807 x 10–5
1.389 x 10–2
8.681 x 10–4
7.234 x 10–5
N•m x
10–4 1000 1.020
1 10–4 1.416
x 10–2 8.850
x 10–4 7.375
x 10–5 N•m 107 1.020 x 104
104
1 141.6
8.850 0.7375
oz•in
7.062 x 104
72.01 70.62
7.062 x 10–3
1 6.250 x 10–2 5.208
x 10–3 lb•in 1.130 x 108
1.152 x 103
1.130 x 103
0.1130 16
1 8.333 x 10–2 lb•ft
1.356 x 107
1.383 x 104
1.356 x 104
1.356 192
12 1
dy•cm
g•cm
N•m x
10-4 N•m
oz•in lb•in lb•ft oz•in•rpm W hp
Multiply By INERTIA To Obtain Multiply By g•cm2 1
10–7
1.416 x 10–5
5.467 x 10–3
g•cm2 kg•m2
oz•in•s2
oz•in2
kg•m2 107 1
141.6 5.467
x 104 oz•in•s2
7.062 x 104
7.062 x 10–3
1 386.09
oz•in2
182.9 1.829
x 10–5 2.590
x 10–3 1
To Obtain POWER W 1352 1
1.341 x 10–3
hp 1.008 x 106
745.7 1
oz•in•rpm 1 7.345 x 10–4 9.917
x 10–7
