Inch Converter - Convert Inches to Any Length Unit

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Inches
12in

1 inch = 25.4 mm exactly

Millimeters304.8mm
Centimeters30.48cm
Meters0.3048m
Kilometers0.0003048km
Feet1ft
Yards0.333333yd
Miles0.00018939mi
Nautical miles0.00016458nmi
Micrometers304,800um
Nanometers304,800,000nm
mm304.8
cm30.48
ft1
yd0.333333

12 inches = 12 inches

  • In metric units, that is 30.48 centimeters or 304.8 millimeters.
  • That is 1 feet and 0.00 inches (1 feet).
  • The international inch is defined as exactly 25.4 millimeters, making all these conversions exact with no rounding error.

Next stepFor fractions of an inch (such as 3/8 or 7/16), divide the numerator by the denominator first to get a decimal, then multiply by 2.54 to reach centimeters.

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