1 inch in cm
1 inch is 2.54 cm. That is also 25.4 mm, or 0.0254 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 |
| 1 inch in metres | 1 × 0.0254 | 0.025 m |
| In centimetres | 0.0254 ÷ 0.01 | 2.54 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.