3 inches in cm
3 inches is 7.62 cm. That is also 76.2 mm, or 0.0762 metres.
Factors from their legal definitions.
Show the workings
| Step | Sum | Answer |
|---|---|---|
| One inch in metres | 0.9144 m ÷ 36 | 0.025 m |
| One centimetre in metres | a hundredth of a metre | 0.01 m |
| 3 inches in metres | 3 × 0.0254 | 0.076 m |
| In centimetres | 0.0762 ÷ 0.01 | 7.62 cm |
Where the figures come from
- A yard in metres: 0.914 m per yard. Source: Weights and Measures Act 1985, Schedule 1. Checked 13 November 2026.
- Inches in a yard: 36 inches per yard. Source: Weights and Measures Act 1985, Schedule 1. Checked 13 November 2026.
Nearby values
| Inches | Centimetres |
|---|---|
| 1 inch | 2.54 cm |
| 2 inches | 5.08 cm |
| 3 inches | 7.62 cm |
| 4 inches | 10.16 cm |
| 5 inches | 12.7 cm |
| 6 inches | 15.24 cm |
| 7 inches | 17.78 cm |
| 8 inches | 20.32 cm |
How it works
To convert inches to centimetres, multiply by 2.54. Open "Show the workings" above to see this sum step by step.