in to cm Converter

Convert inches to centimeters with the exact definition 1 inch = 2.54 centimeters.

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Length Converter

Convert length units instantly

1 in = 2.54 cm
Live conversion result
How it works

Base unit: m. Values convert via the base unit for this category.

Formula (scale-only): cm = in × 2.54
That is, multiply by 2.54 to convert in to cm.
Examples
  • 1 in = 2.54 cm
  • 5 in = 12.7 cm
Tips
  • 1 inch is exactly 2.54 centimeters (defined since 1959).
  • The international foot is exactly 0.3048 meters.

Popular conversions

incm
12.54
512.7
1025.4
100254

Examples

  • 1 in = 2.54 cm
  • 6 feet in inches:72 in = 182.88 cm

How to convert

cm = in × 2.54. Multiply the value in in by 2.54 to get cm.

Related conversions

cm to inchesmeters to feetfeet to metersmm to inchesinches to mmkm to miles

FAQs

  • How many centimeters are in 1 inch?

    Exactly 2.54 centimeters are in 1 inch (defined).

  • What is the formula for inches to cm?

    centimeters = inches × 2.54.

  • Is 2.54 cm exact?

    Yes. Since 1959, the inch is exactly 2.54 cm by definition.