| 221 m * | 3.280839895 ft | = 725.065616798 ft | 
| 1 m | 
| Mõõtühik | Pikkused | 
|---|---|
| nanomeeter | 2.21e+11 nm | 
| Mikromeeter | 221000000.0 µm | 
| Millimeeter | 221000.0 mm | 
| Sentimeeter | 22100.0 cm | 
| Toll | 8700.78740157 in | 
| Jalg | 725.065616798 ft | 
| Õu | 241.688538933 yd | 
| Meeter | 221.0 m | 
| Kilomeeter | 0.221 km | 
| Miil | 0.1373230335 mi | 
| Meremiil | 0.1193304536 nmi | 
