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When You Know U.S.
Customary
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When You
Know Metric
Multiply
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To Get U.S. Customary
Length
inches (in) 25.4 millimeters (mm) 0.03937 inches (in)
inches (in) 2.54 centimeters (cm) 0.3937 inches (in)
feet (ft) 0.3048 meters (m) 3.281 feet (ft)
yards (yd) 0.9144 meters (m) 1.094 yards (yd)
miles (mi) 1.609 kilometers (km) 0.6215 miles (mi)
Area
square inches (in
2
) 645.16 square millimeters (mm
2
) 0.00155 square inches (in
2
)
square inches (in
2
) 6.452 square centimeters (cm
2
) 0.155 square inches (in
2
)
square feet (ft
2
) 0.0929 square meters (m
2
) 10.764 square feet (ft
2
)
Volume
cubic inches (in
3
) 16387.0 cubic millimeter (mm
3
) 0.000061 cubic inches (in
3
)
cubic inches (in
3
) 16.387 cubic centimeters (cm
3
) 0.06102 cubic inches (in
3
)
cubic inches (in
3
) 0.01639 liters (L) 61.024 cubic inches (in
3
)
fluid ounces (fl oz) 29.54 milliliters (mL) 0.03381 fluid ounces (fl oz)
pints (pt) 0.47318 liters (L) 2.1134 pints (pt)
quarts (qt) 0.94635 liters (L) 1.0567 quarts (qt)
gallons (gal) 3.7854 liters (L) 0.2642 gallons (gal)
cubic feet (ft
3
) 28.317 liters (L) 0.03531 cubic feet (ft
3
)
cubic feet (ft
3
) 0.02832 cubic meters (m
3
) 35.315 cubic feet (ft
3
)
Weight/Force
ounces (av) (oz) 28.35 grams (g) 0.03527 ounces (av) (oz)
pounds (av) (lb) 0.454 kilograms (kg) 2.205 pounds (av) (lb)
U.S. tons (t) 907.18 kilograms (kg) 0.001102 U.S. tons (t)
U.S. tons (t) 0.90718 metric tons (t) 1.1023 U.S. tons (t)
Torque/Work Force
inch–pounds (lbf·in) 11.298 Newton–centimeters (N·cm) 0.08851 inch–pounds (lbf·in)
foot–pounds (lbf·ft) 1.3558 Newton–meters (N·m) 0.7376 foot–pounds (lbf·ft)
Pressure/Vacuum
inches of mercury (inHg) 3.37685 kilo Pascals (kPa) 0.29613 inches of mercury (inHg)
pounds per square inch (psi) 6.895 kilo Pascals (kPa) 0.14503 pounds per square inch (psi)
Table 4, Metric/U.S. Customary Conversion
When You Know Subtract
Then
Divide By
To Get
When You
Know
Multiply
By
Then
Add
To Get
degrees Fahrenheit (°F) 32 1.8 degrees Celsius (°C) 1.8 32 degrees Fahrenheit (°F)
Table 5, Temperature Conversion
General Information00
Metric/U.S. Customary Conversion Tables: 00–04
Acterra Maintenance Manual, January 200700/6