| 280 mm * | 0.1 cm | = 28.0 cm | 
| 1 mm | 
| Natuurkundige eenheid | Lengtes | 
|---|---|
| Nanometer | 280000000.0 nm | 
| Micrometer | 280000.0 µm | 
| Millimeter | 280.0 mm | 
| Centimeter | 28.0 cm | 
| Inch | 11.0236220472 in | 
| Voet | 0.9186351706 ft | 
| Yard | 0.3062117235 yd | 
| Meter | 0.28 m | 
| Kilometer | 0.00028 km | 
| Mijl | 0.0001739839 mi | 
| Zeemijl | 0.0001511879 nmi | 
