1 Inch to Centimeters
1 inch is 2.54 centimeters. See the step-by-step breakdown and reference table below, or try a different value in the calculator.
1 in = 2.54 cm
in × 2.54 = cm
1 in is also
in
cm
Step-by-Step Calculation
in × 2.54 = cm
- Start with 1 in
- Multiply by 2.54: 1 × 2.54 = 2.54
- Result: 1 in = 2.54 cm
This conversion factor (2.54) is the same for every inch to centimeter calculation.
Quick Mental Conversion
For a rough estimate, multiply inches by 2.5. For example, 1 in × 2.5 = 2.5 cm. The exact answer is 2.54 cm.
Inch to Centimeter Conversion Table
Related Calculators
Frequently Asked Questions
1 inch equals 2.54 centimeters.
The formula is: in × 2.54 = cm. See the in to cm formula page for worked examples.
Use the centimeters to inch converter. The reverse formula is: cm ÷ 2.54 = in.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (in × 2.54 = cm) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.