1 inch (in.) = 2.54 centimeters (cm) 1 mile (mi) = 1.6093 kilometers

Memorize!
USCS to Metric
1 inch (in.)
1 mile (mi)
1 pound (lb)
1 gallon (gal)
= 2.54 centimeters (cm)
= 1.6093 kilometers (km)
= 0.4536 kilograms (kg)
= 3.785 liters (L)
Metric to USCS
1 centimeter (cm)
1 kilometer (km)
1 kilogram (kg)
1 liter (L)
= 0.3937 inches (in.)
= 0.6214 miles (mi)
= 2.205 pounds (lb)
= 0.2642 gallons (gal)
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