Whether working on DIY projects, ordering international clothing, or reading blueprints, switching between imperial and metric systems is a daily requirement. Here is everything you need to convert inches to centimeters accurately.
The Exact Formula: 1 Inch = 2.54 cm
Length in cm = Length in inches × 2.54
Length in inches = Length in cm ÷ 2.54
Fractional Inches to Centimeters (1/16″ to 1″)
| Fraction | Decimal | Millimeters (mm) | Centimeters (cm) |
|---|---|---|---|
| 1/16″ | 0.0625″ | 1.59 mm | 0.16 cm |
| 1/8″ | 0.1250″ | 3.18 mm | 0.32 cm |
| 1/4″ | 0.2500″ | 6.35 mm | 0.64 cm |
| 3/8″ | 0.3750″ | 9.53 mm | 0.95 cm |
| 1/2″ | 0.5000″ | 12.70 mm | 1.27 cm |
| 5/8″ | 0.6250″ | 15.88 mm | 1.59 cm |
| 3/4″ | 0.7500″ | 19.05 mm | 1.91 cm |
| 7/8″ | 0.8750″ | 22.23 mm | 2.22 cm |
| 1″ | 1.0000″ | 25.40 mm | 2.54 cm |



