Surviving steam locomotives in the United Kingdom organized by Gauge

12¼" (9, op:5, op:4)
12" (1, op:1)
15" (45, op:42, op:3)
18" (1, op:1)
19" (2, op:2)
22¾" (4, re:2, sto:1)
22" (6)
23½" (25, op:24, re:1)
23.75" (4, op:4)
24" (76, op:43, pri:2, op:25, re:4)
27" (8, op:7, ovr:1)
30" (10, sto:3, op:7)
36" (34, op:9, re:5, oos:1, sto:3, const:1)
4'-5" (1)
4'-8½" (469, sto:22, re:55, op:244, oos:29, op:18, ovr:3, const:6, scrp:4)
42" (2)
5' (4, op:1, sto:2)
5'-3" (20, op:6, oos:3, sto:3, const:1)
52" (1, op:1)
56 (1)
600mm (6, op:4, sto:2)
800mm (3, op:3)
84¼" (1)
84¼" (1)