Convert Inches to Centimeters
Inches to Centimeters conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 200 in | 508 cm |
| 500 in | 1270 cm |
| 1000 in | 2540 cm |
How to convert inches to centimeters
Inches are the go-to unit for screen sizes, lumber dimensions, and rainfall in the United States. Centimeters provide finer metric gradations for science, medicine, and international trade. The conversion is anchored by the exact definition: 1 inch = 2.54 cm.
Multiply inches by 2.54 to get centimeters. Formula: cm = inches × 2.54. A 15-inch laptop screen measures 15 × 2.54 = 38.1 cm diagonally. Two inches of rainfall equals 5.08 cm — a significant precipitation event.
Tailors, woodworkers importing materials, and medical professionals reading foreign patient records all need this conversion. Baby growth charts in the US use inches for length; most other countries record centimeters.
Quick references: 1 inch = 2.54 cm, 6 inches = 15.24 cm (about a hand span), 12 inches = 30.48 cm (one foot), and 36 inches = 91.44 cm (one yard).
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Frequently asked questions
Exactly 2.54 centimeters. This has been the international standard since 1959.
32 inches × 2.54 = 81.28 cm. Note this is the diagonal screen measurement, not width.
No — 2.5 cm is an approximation. The exact value is 2.54 cm, which matters in precision work like machining or medical dosing.