| Metric teaspoon | UK (imperial) gallon |
| 1 tsp metric | 0.0010998462414954 gal-uk |
| 2 tsp metric | 0.0021996924829909 gal-uk |
| 3 tsp metric | 0.0032995387244863 gal-uk |
| 4 tsp metric | 0.0043993849659818 gal-uk |
| 5 tsp metric | 0.0054992312074772 gal-uk |
| 6 tsp metric | 0.0065990774489726 gal-uk |
| 7 tsp metric | 0.0076989236904681 gal-uk |
| 8 tsp metric | 0.0087987699319635 gal-uk |
| 9 tsp metric | 0.009898616173459 gal-uk |
| 10 tsp metric | 0.010998462414954 gal-uk |
| 11 tsp metric | 0.01209830865645 gal-uk |
| 12 tsp metric | 0.013198154897945 gal-uk |
| 13 tsp metric | 0.014298001139441 gal-uk |
| 14 tsp metric | 0.015397847380936 gal-uk |
| 15 tsp metric | 0.016497693622432 gal-uk |
| 16 tsp metric | 0.017597539863927 gal-uk |
| 17 tsp metric | 0.018697386105422 gal-uk |
| 18 tsp metric | 0.019797232346918 gal-uk |
| 19 tsp metric | 0.020897078588413 gal-uk |
| 20 tsp metric | 0.021996924829909 gal-uk |