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Track gauge

By transport mode

By size (list)



Minimum
Minimum
Fifteen inch	381 mm	(15 in)

Narrow
600 mm Two foot Two foot three inch	600 mm 610 mm 686 mm	(1 ft 11+5⁄8 in) (2 ft) (2 ft 3 in)
750 mm Bosnian gauge Two foot six inch	750 mm 760 mm 762 mm	(2 ft 5+1⁄2 in) (2 ft 5+15⁄16 in) (2 ft 6 in)
Swedish three foot 900 mm Three foot Italian metre	891 mm 900 mm 914 mm 950 mm	(2 ft 11+3⁄32 in) (2 ft 11+7⁄16 in) (3 ft) (3 ft1+13⁄32 in)
Metre	1,000 mm	(3 ft 3+3⁄8 in)
Three foot six inch	1,067 mm	(3 ft 6 in)
Four foot	1,219 mm	(4 ft 0 in)
Four foot six inch	1,372 mm	(4 ft 6 in)
1432 mm	1,432 mm	(4 ft 8+3⁄8 in)

Standard	1,435 mm	(4 ft 8+1⁄2 in)

Broad
Italian broad gauge Dresden gauge	1,445 mm 1,450 mm	(4 ft 8+7⁄8 in) (4 ft 9+3⁄32 in)
Leipzig gauge	1,458 mm	(4 ft 9+13⁄32 in)
Toronto gauge	1,495 mm	(4 ft 10+7⁄8 in)
1520 mm Five foot	1,520 mm 1,524 mm	(4 ft 11+27⁄32 in) (5 ft)
Pennsylvania gauge Pennsylvania gauge Five foot three inch	1,581 mm 1,588 mm 1,600 mm	(5 ft 2+1⁄4 in) (5 ft 2+1⁄2 in) (5 ft 3 in)
Baltimore gauge	1,638 mm	(5 ft 4+1⁄2 in)
Iberian gauge Five foot six inch	1,668 mm 1,676 mm	(5 ft 5+21⁄32 in) (5 ft 6 in)
Six foot	1,829 mm	(6 ft)
Brunel	2,140 mm	(7 ft 1⁄4 in)