Suit and sport coat sizes have one number and one descriptive word (for example, 38 short, 40 regular, 42 long). The number refers to your chest measurement, and the descriptive word refers to the length of the jacket.
What is a size 50 in UK?
Size UK EU/IT
---- -- -----
M 38 48
L 40 50
XL 42 52
2XL 44 54
What is a size 58 suit?
Size A. Chest B. Waist
---- -------- --------
52 29.5in 29.125in
54 30.5in 30.125in
56 31.5in 31.125in
58 32.5in 32.125in
How do I find my suit size?
To correctly determine your suit size, you need to measure your (1) height, (2) chest circumference, (3) hip circumference, and (4) waistband. You also need to know your (5) step length (along the leg, from crotch to the ground) and (6) your side length (from the waist over the hip to the sole).