| Cubic millimeter | UK (imperial) gallon |
| 1 mm³ | 2.1996924829909E-6 gal-uk |
| 2 mm³ | 4.3993849659818E-6 gal-uk |
| 3 mm³ | 6.5990774489726E-6 gal-uk |
| 4 mm³ | 8.7987699319635E-6 gal-uk |
| 5 mm³ | 1.0998462414954E-5 gal-uk |
| 6 mm³ | 1.3198154897945E-5 gal-uk |
| 7 mm³ | 1.5397847380936E-5 gal-uk |
| 8 mm³ | 1.7597539863927E-5 gal-uk |
| 9 mm³ | 1.9797232346918E-5 gal-uk |
| 10 mm³ | 2.1996924829909E-5 gal-uk |
| 11 mm³ | 2.41966173129E-5 gal-uk |
| 12 mm³ | 2.6396309795891E-5 gal-uk |
| 13 mm³ | 2.8596002278881E-5 gal-uk |
| 14 mm³ | 3.0795694761872E-5 gal-uk |
| 15 mm³ | 3.2995387244863E-5 gal-uk |
| 16 mm³ | 3.5195079727854E-5 gal-uk |
| 17 mm³ | 3.7394772210845E-5 gal-uk |
| 18 mm³ | 3.9594464693836E-5 gal-uk |
| 19 mm³ | 4.1794157176827E-5 gal-uk |
| 20 mm³ | 4.3993849659818E-5 gal-uk |