Inches to metric conversion
The conversion from metric to inches can be confusing. Sometimes approximations are used. The following table lists common approximations used when converting from metric to inches and verse versa.
| Inches | Metric approx | Metric exact |
|---|---|---|
| 1" | 25mm | 25.4mm |
| 2" | 50mm | 50.8mm |
| 3" | 75mm | 76.2mm |
| 4" | 100mm | 101.6mm |
| 5" | 125mm | 127.0mm |
| 6" | 150mm | 152.4mm |
| 7" | 175mm | 177.8mm |
| 8" | 200mm | 203.2mm |
| 9" | 225mm | 228.6mm |
| 10" | 250mm | 254.0mm |
| 11" | 275mm | 279.4mm |
| 12" | 300mm | 304.8mm |
| 15" | 375mm | 381.0mm |
| 18" | 450mm | 457.2mm |
| 20" | 500mm | 508mm |
| 24" | 600mm | 609.6mm |
| 28" | 700mm | 711.2mm |
| 30" | 750mm | 762mm |
| 36" | 900mm | 914.4mm |
| 48" | 1200mm | 1259.2mm |
| 60" | 1500mm | 1524mm |
| 72" | 1800mm | 1828.8mm |
Inches to metric conversion last updated: Apr-2023