CM to Inches Converter (cm → in) | Instant Conversion Tool
CM to Inches Converter (cm → in)
Convert centimetres (cm) to inches (in) instantly using the calculator below. You’ll also find a quick conversion table and the exact formula.
✅ Instant CM → Inches Calculator
📌 CM to Inches Formula
Inches = Centimetres ÷ 2.54
Example: 10 cm ÷ 2.54 = 3.937 in
📋 Quick CM → Inches Conversion Table
| Centimetres (cm) | Inches (in) | Centimetres (cm) | Inches (in) |
|---|---|---|---|
| 1 | 0.394 | 25 | 9.843 |
| 2 | 0.787 | 30 | 11.811 |
| 5 | 1.969 | 40 | 15.748 |
| 10 | 3.937 | 50 | 19.685 |
| 15 | 5.906 | 60 | 23.622 |
| 20 | 7.874 | 100 | 39.370 |
❓ Frequently asked questions
How many inches are in 1 cm?
1 cm = 0.3937 inches (approximately).
Why is 2.54 used in the formula?
Because 1 inch is defined as exactly 2.54 centimetres.
How accurate is this converter?
The calculator uses the exact definition (1 in = 2.54 cm) and displays up to 3 decimal places.
Disclaimer: This tool and information are provided for general reference only. While the calculator uses the internationally defined conversion (1 inch = 2.54 cm), results may be rounded for display and may not be suitable for situations requiring certified measurement, engineering tolerances, medical use, legal/compliance purposes, or safety-critical decisions. You are solely responsible for verifying measurements and outcomes for your intended use. This page is not affiliated with, endorsed by, or sponsored by any standards body, authority, or measurement agency.