| Designation | L2 | L3 | M2 | M3 | N3 | O3 (Nelson as built) | O3 (Nelson modernisation proposal) | P3 | Q3 | Vickers Design 873 |
| Displacement | 52.100tons | 51.100tons | 48.750tons | 46.000tons | 48.500tons | 41.250tons | 44.000tons | 48.000tons | 48.000tons | 39.500tons |
| Dimensions | 262 x 32,3 x 10,2m | 262 x 32,3 x 10m | 249 x 32,3 x 10m | 236 x 32,3 x 10m | 250 x 32,3 x 10,1m | 216,4 x 32,3 x 10,2m | 216,4 x 32,3 x 10,2m | 218,54 x 31,7 x 9,14m | 218,54 x 31,7 x 9,14m | 204,22 x 32 x 9,14m |
| Engine Power / Speed | 70.000shp, 2shafts 46km/h | 70.000shp, 2shafts 46km/h | 56.000shp, 2shafts 44km/h | 56.000shp, 2shafts 44km/h | 50.000shp, 2shafts 44km/h | 45.000shp, 2shafts 43km/h | 45.000shp, 2shafts 43km/h | 45.000shp, 2shafts 43km/h | 45.000shp, 2shafts 43km/h | 52.000shp, 2shafts 44km/h |
| Armour | Belt: 381mm Deck: 203mm | Belt: 381mm Deck: 203mm | Belt: 381mm Deck: 203mm | Belt: 381mm Deck: 203mm | Belt: 381mm Deck: 203mm | Belt: 356mm Deck: 159mm | Belt: 356mm Deck: 159mm | Belt: 356mm Deck: 203mm | Belt: 356mm Deck: 203mm | Belt: 356mm Deck: 184mm |
| Main Armament | 457mm Mark II (4x2) | 457mm Mark II (3x3) | 457mm Mark II (4x2) | 457mm Mark II (3x3) | 457mm Mark II (3x3) | 406mm Mark I (3x3) | 406mm Mark I (3x3) | 381mm Mark I (3x3) | 381mm Mark I (3x3) | 406mm Mark I (3x3) |
| Secondary Armament | 152mm Mark XXII (8x2) | 152mm Mark XXII (8x2) | 152mm Mark XXII (8x2) | 152mm Mark XXII (8x2) | 152mm Mark XXII (8x2) | 152mm Mark XXII (6x2) | 133mm Mark I (6x2) | 152mm Mark XXII (6x2) | 152mm Mark XXII (6x2) | 152mm Mark XXII (6x2) |
| Heavy AA Armament | 120mm Mark VIII (6x1) | 120mm Mark VIII (6x1) | 120mm Mark VIII (5x1) | 120mm Mark VIII (5x1) | 120mm Mark VIII (6x1) | 120mm Mark VIII (6x1) | 114mm Mark III (6x2) | 120mm Mark VIII (6x1) | 120mm Mark VIII (6x1) | 120mm Mark VIII (6x1) |
| Light AA Armament | 40mm Mark VIII (4x10) | 40mm Mark VIII (4x10) | 40mm Mark VIII (2x10) | 40mm Mark VIII (2x10) | 40mm Mark VIII (4x10) | 40mm Mark II (8x1) | 40mm Mark VIII (6x8) 20mm Mark I (61x1) | 40mm Mark VIII (4x10) | 40mm Mark VIII (4x10) | 40mm Mark VIII (4x8) |
| Other | 622mm (2x1) Torpedo tubes | 622mm (2x1) Torpedo tubes | 622mm (2x1) Torpedo tubes | 622mm (2x1) Torpedo tubes | 622mm (2x1) Torpedo tubes | 622mm (2x1) Torpedo tubes | 622mm (2x1) Torpedo tubes 1x Walrus Floatplane | 622mm (2x1) Torpedo tubes | 622mm (2x1) Torpedo tubes |