| 21.7 mm * | 0.0393700787 in | = 0.8543307087 in | 
| 1 mm | 
| Måleenhed | Længder | 
|---|---|
| Nanometer | 21700000.0 nm | 
| Mikrometer | 21700.0 µm | 
| Nillimeter | 21.7 mm | 
| Centimeter | 2.17 cm | 
| Tomme | 0.8543307087 in | 
| Fod | 0.0711942257 ft | 
| Yard | 0.0237314086 yd | 
| Meter | 0.0217 m | 
| Kilometer | 2.17e-05 km | 
| Nil | 1.34838e-05 mi | 
| Sømil | 1.17171e-05 nmi | 
