Lidos and pools by volume
Lots of pools lay claim to being the biggest, or at least the biggest at the time they were opened so here is a list based solely on water capacity. Earlier pools rank higher that those with the same capacity.
| Name | Opened | Closed | Capacity (gallons) | |
| 1 | Cleethorpes Bathing Pool | 1923 | 1983 | 2,000,000 |
| 2 | South Bay Bathing Pool | 1915 | 1989 | 1,600,000 |
| 3 | South Shore Open Air Bath | 1923 | 1981 | 1,600,000 |
| 4 | Aldershot Lido | 1930 | N/A | 1,500,000 |
| 5 | Southport Sea Bathing Lake | 1927 | 1989 | 1,400,000 |
| 6 | New Brighton Open Air Pool | 1934 | 1990 | 1,376,000 |
| 7 | Whipps Cross Lido | 1937 | 1982 | 1,300,000 |
| 8 | Portobello Bathing Pool, Edinburgh | 1936 | 1979 | 1,250,000 |
| 9 | Jubilee Pool, Penzance | 1935 | Open | 1,090,000 |
| 10 | Morecambe and Heysham Super Swimming Stadium | 1936 | 1976 | 1,090,000 |
| 11 | Tooting Bec Lido | 1906 | Open | 1,000,000 |
| 12 | St Leonards Bathing Pool, Hastings | 1933 | 1986 | 1,000,000 |
