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Quantity Metric (SI) Units of Measure US Customary (USC) Units of Measure Conversion Factors (SI) To (USC)

This document provides conversions between metric (SI) and US customary (USC) units of measurement. It lists units for quantities such as length, area, volume, mass, force, velocity, acceleration, torque, power, pressure and stress. Conversion factors are also provided to convert between SI and USC units.

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Aadarsh bhandari
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908 views1 page

Quantity Metric (SI) Units of Measure US Customary (USC) Units of Measure Conversion Factors (SI) To (USC)

This document provides conversions between metric (SI) and US customary (USC) units of measurement. It lists units for quantities such as length, area, volume, mass, force, velocity, acceleration, torque, power, pressure and stress. Conversion factors are also provided to convert between SI and USC units.

Uploaded by

Aadarsh bhandari
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Metric (SI) US Customary (USC) Conversion Factors

Quantity
Units of Measure Units of Measure (SI) to (USC)
second (s) second (s)
1 minute (min) = 60 seconds 1 minute (min) = 60 seconds
Time --
1 hour (hr) = 60 minutes 1 hour (hr) = 60 minutes
1 day = 24 hours 1 day = 24 hours
meter (m) foot (ft)
Length 1000 millimeters (mm) = 1 m 12 inches (in) = 1 ft 1 m = 3.281 ft
1 kilometer (km) = 1000 m 1 mile (mi) = 5280 ft
Area square meter (m2) square foot (ft2) 1 m2 = 10.764 ft2
cubic meter (m3) cubic foot (ft3) 1 m3 = 31.315 ft3
Volume
Liter (L) = .001 m3 Gallon (gal) = .1337 ft3 3.785 L = 1 gal

kilogram (kg) 𝑙𝑏∗𝑠 2


Mass slug = 1 ( ) 14.59 kg = 1 slug
metric ton / tonne (t) = 1000 kg 𝑓𝑡

pound (lb)
𝑘𝑔∗𝑚
newton (N) = 1 ( ) 16 ounces (oz) = 1 lb
Force 𝑠2 4.448 N = 1 lb
kilonewton (kN) = 1000 N 1 kilo pound (kip) = 1000 lbs
1 ton = 2000 lbs
meter per second (𝑚⁄𝑠) feet per second (𝑓𝑡⁄𝑠 )
Velocity m ft
3.6 kilometers per hour (kph) = 1 ft 1 = 3.281
(Linear) 𝑚 ⁄𝑠
mile per hour (mph) = 1.467
s
s s

Acceleration m ft m ft
meter per second squared ( 2 ) foot per second squared ( 2 ) 1 = 3.281 2
(Linear) 𝑠 s s 2 s

rad rad
radian per second ( ) radian per second ( )
Velocity 𝑠 𝑠
1 rotation per minute (rpm) 1 rotation per minute (rpm) --
(Angular) 2𝜋 rad 2𝜋 rad
= =
60 𝑠 60 𝑠

Acceleration rad rad


radian per second squared ( ) radian per second squared ( ) --
(Angular) 𝑠2 𝑠2

Moment of a Foot-pound (lb*ft)


Newton-meter (N*m) 1.356 N*m = 1 lb*ft
Force; Torque Inch pound (lb*in)
Area Moment of meter4 (m4 ) foot4 (ft4)
8.6x10-3 m4 = 1ft4
Inertia 1 milimeter4 (mm4) = 10-12 ∗ m4 20736 inches4 (in4) = 1 ft4
Mass Moment of
kilogram meter2 (kg ∗ m2 ) slug foot 2 (slug ∗ ft 2 ) 1 kg*m2 =1.356 lb*ft2
Inertia
Work and Energy joule (J) = 1 (𝑁 ∗ 𝑚) foot-pound (ft lb) 1.356 J = 1 ft lb
kg∗m foot pound per second (
ft∗lb
) ft lb
watt (W) = 1 (𝐽⁄𝑠) = 1 ( ) s 1.356 W = 1
Power 𝑠2
ft∗lb s
kilowatt (kW) = 1000 W horsepower (hp) = 550 ( ) 1 kW = 1.341 hp
s
2
pascal (Pa) = 1 𝑁⁄𝑚 pounds per square inch (psi) =
Pressure or kilopascal (kPa) = 1000 Pa 1 (𝑙𝑏⁄𝑖𝑛2 )
6894.76 Pa = 1 psi
Stress megapascal (MPa) = 106 Pa kilo-pounds per square inch (ksi)
gigapascal (MPa) = 109 Pa = 1000 psi

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