EuroRack dimensions         

Rolf Meurer 2000 
VP (Vertical Pitch)
 1 VP = 0.05 inches (1,27mm)
U (Units)
HE (Höhen-Einheiten)
1 U = 35 VP = 1.75 inches (44,45mm)
1 section rack 3 U = 105 VP = 133,35mm
FORMANT module height 5 U = 175 VP = 222,25mm
2 section rack 6 U = 210 VP = 266,70mm
HP (Horizontal Pitch)
TE (Teil-Einheiten)
1 HP = 0.2 inch (5,08mm)
ER Module height
 nominal
usual
=
=		 129,54mm
128,50mm
ER Screw distance
 vertical
horizontal
=
=		 122,50mm
(HP-3) * 5,08mm
Module mounting holes Module width
[HP]		 nominal width
(multiple of 5.08 mm)		 actual width
[mm]
EuroRack Module Mounting Holes 1 5,08 5,0
2 10,16 9,8
4 20,32 20,0
6 30,48 30,0
8 40,64 40,3
10 50,80 50,5
12 60,96 60,6
14 71,12 70,8
16 81,28 80,9
18 91,44 91,3
20 101,60 101,3
21 106,68 106,3
22 111,76 111,4
24 121,92 121,6
28 142,24 141,9

Rack specification

Horizontal Front Panel Size:
The horizontal front panel of a rack is exactly 19 inches wide, which is equal to 482.6mm.

Horizontal Rack Hole Pairs:
The horizontal rack holes are spaced with a center-to-center distance of 18.3 inches (465mm).

Vertical Rail Hole Arrangement:
The holes in the vertical rails are arranged in repeating units of three holes.

Unit Height:
Each unit, consisting of three holes, has a height of 1.75 inches (44.45 mm).

Hole Separation Within a Unit:
The center-to-center hole separation within a unit is 0.625 inches (15.875 mm).

Hole Distance Between Units:
The center-to-center hole distance between two units is 0.5 inches (12.7 mm)
       
Rack mounting holes Units (Panel height) inches mm
19" Rack Dimensions 1 1.719 43,7
2 3.469 88,1
3 5.219 132,6
4 6.969 177,0
5 8.719 221,4
6 10.469 265,9
7 12.219 310,3
8 13.969 354,8
9 15.719 399,3
10 17.469 443,7