| name | Unit system | Physical quantity | SI conversion ({pendiente}) | symbol |
|---|---|---|---|---|
| Astronomical unit | Astronomical system of units | Length | au or AU | |
| Chain | Imperial units | Length | ch | |
| Furlong | Imperial units | Length | ||
| Inch | Imperial units | Length | in | |
| Light-year | Astronomical system of units | Length | ly[citation needed [Wikipedia:Citation_needed]] |