GlenCalc

Unit conversion calculator

Pick what you are converting, enter a value and its unit. You get the unit you asked for and a table of all the others.

Your answer

12 in =30.48 cm
In every unit
UnitValue
in12
ft1
yd0.33333333
mi0.00018939
mm304.8
cm30.48
m0.3048
km0.0003048

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How we worked it out

Updated as you change the numbers.

  1. Convert to ft with the exact factor, then to the target unit.

Method and assumptions

Conversions use exact definitions where they exist: 1 inch = 2.54 cm, 1 lb = 0.45359237 kg, 1 US gallon = 231 cubic inches, 1 calorie = 4.184 J. Decimal (kB, MB) and binary (KiB, MiB) data units are kept separate.

Questions

How many centimeters are in 12 inches?

30.48 cm.

What is 100 °F in °C?

37.78 °C.

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

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