| 77.8 mm * | 0.1 cm | = 7.78 cm | 
| 1 mm | 
| Måleenhed | Længder | 
|---|---|
| Nanometer | 77800000.0 nm | 
| Mikrometer | 77800.0 µm | 
| Nillimeter | 77.8 mm | 
| Centimeter | 7.78 cm | 
| Tomme | 3.062992126 in | 
| Fod | 0.2552493438 ft | 
| Yard | 0.0850831146 yd | 
| Meter | 0.0778 m | 
| Kilometer | 7.78e-05 km | 
| Nil | 4.83427e-05 mi | 
| Sømil | 4.20086e-05 nmi | 
