| 666 cm * | 0.032808399 ft | = 21.8503937008 ft | 
| 1 cm | 
| Ölçü vahidləri | Uzunluq | 
|---|---|
| Nanometr | 6660000000.0 nm | 
| Mikrometr | 6660000.0 µm | 
| Millimetr | 6660.0 mm | 
| Santimetr | 666.0 cm | 
| Düym | 262.20472441 in | 
| Ayaq | 21.8503937008 ft | 
| Yard | 7.2834645669 yd | 
| Metr | 6.66 m | 
| Kilometr | 0.00666 km | 
| Mil | 0.0041383321 mi | 
| Deniz mili | 0.0035961123 nmi | 
