5 inches to centimeters
5 inches = 12.7 centimeters
Formula: centimeters = inches x 2.54
Five inches is about the height of a large smartphone, and the centimeter figure lets US users compare it with metric device specifications.
How to Convert inches to centimeters
The inch-to-centimeter conversion is exact by international agreement. One inch is defined as precisely 25.4 millimeters, or 2.54 centimeters, a definition adopted worldwide in 1959 to unify imperial and metric length.
The formula is centimeters = inches x 2.54. Multiply your value by the factor: 5 x 2.54 = 12.7 centimeters.
The reverse is just as direct: 12.7 centimeters equals 5 inches. That symmetry is a quick way to sanity-check any conversion you make.
inches to centimeters Conversion Table
Use this table to read off nearby values at a glance. The highlighted row is the 5-inches conversion from this page.
| inches | centimeters |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 6 | 15.24 |
| 7 | 17.78 |
| 8 | 20.32 |
| 9 | 22.86 |
| 10 | 25.4 |
Reverse: centimeters to inches
Need to go the other way? 12.7 centimeters converts back to 5 inches. For the full breakdown in that direction, see 5 centimeters to inches.
Frequently Asked Questions
How many centimeters is 5 inches?
That comes to 12.7 centimeters. The result carries no estimate: the inch has equalled exactly 25.4 millimeters by international agreement, which locks in the whole metric-to-imperial length chain.
Is the inch-to-centimeter conversion exact or approximate?
As precise as it gets. The inch equals exactly 2.54 centimeters under the 1959 standard, so the underlying factor is perfect; the only approximation is how many decimal places we choose to show.
What is 12.7 centimeters back in inches?
Converting the other direction gives 5 inches again. Try the inch converter linked below whenever you need a different length.
Convert Any Value
Need a different number or unit? Open the Inch Converter to convert length between any units instantly.
Open the Inch ConverterBrowse all unit conversions or open the Inch Converter.
Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and may not reflect exact values.
Last updated: June 13, 2026