Inches to CM Calculator
Converting inches to centimeters is essential when working with metric specifications, international equipment, or projects that require metric documentation. While the US electrical trade uses imperial units for conduit and fittings, many manufacturers provide metric dimensions that need to be cross-referenced.
This calculator multiplies your inch value by 2.54 to return the exact centimeter equivalent. Enter any inch measurement, whether whole numbers or decimals, and get a precise metric result for your layout or documentation needs.
Inches to CM Formula
Centimeters = Inches × 2.54
1 inch = exactly 2.54 cm (international standard)
Because 2.54 is an exact conversion factor, the result is perfectly precise for any input value. For example, 12 inches (one foot) equals exactly 30.48 centimeters.
Frequently Asked Questions
How do you convert inches to centimeters?
Multiply the inch value by 2.54 to get centimeters. For example, 5 inches multiplied by 2.54 equals 12.7 centimeters. The conversion factor of 2.54 is exact by international definition.
How many centimeters is 1 inch?
One inch equals exactly 2.54 centimeters. This is a defined relationship, not an approximation, making inch-to-centimeter conversion perfectly precise.
Why would an electrician convert inches to centimeters?
Electricians working on international projects, with metric equipment, or on jobs that require metric documentation need to convert imperial conduit measurements to centimeters. This ensures compatibility with metric specifications and proper documentation.