Beverage Can Standards

The CMI Voluntary Can and End Dimension Reference Manual* is a compilation of technical information developed by committees of the Can Manufacturers Institute (CMI). Intended for use by CMI members and other interested industry representatives, this publication is available to the public as a service of the Can Manufacturers Institute. Links to a sampling of the information contained in the manual are provided below.

The entire Can Standards Manual is not provided here but can be ordered for $30 for CMI members and $50 for non-members. Pre-payment is required.

Dimensional Food Can Standards

NAMEDIMENSIONSTotal Capacity, avoir oz. of Water at 68degFNo. 2 Can Equivalent
6Z202 x 3086.080.295
8Z Short211 x 3007.930.386
8Z Tall211 x 3048.680.422
No. I (Picnic)211 x 40010.940.532
No. 211 Cylinder211 x 41413.560.660
No. 300300 x 40715.220.741
No. 300 Cylinder300 x 50919.400.945
No. I Tall301 x 41116.700.813
No. 303303 x 40616.880.821
No. 303 Cylinder303 x 50921.861.060
No. 2 Vacuum307 x 30614.710.716
No. 2307 x 40920.551.000
Jumbo307 x 51025.801.2537
No. 2 Cylinder307 x 51226.401.284
No. 1.25401 x 20613.810.672
No. 2.5401 x 41129.791.450
No. 3 Vacuum404 x 30723.901.162
No. 3 Cylinder404 x 70051.702.515
No. 5502 x 51059.102.8744
No. 10603 x 700109.435.325
The capacity of a 16-oz. glass jar is approximately No. 303 tin can.
The capacity of a No. 2.5 glass jar is approximately the same as the No. 2.5 tin can.

Explanation of Dimensional Food Can Standards

Metal can sizes used in industry in the U.S.A. are derived from nominal outside dimensions. Measurements are made of the empty round can before seaming on the packers' end.

While such dimensions may be expressed in inches, the custom is to use a conventionalized method in which three-digit numbers are used to express each dimension. The first digit indicates the number of whole inches in a dimension, and the second and third digits indicate the fractional inches as sixteenths of an inch. Thus:

  • 303 x 406 means 3-3/16 x 4-6/16 inches
  • 307 x 512 means 3-7/16 x 5-12/16 inches
  • 603 x 700 means 6-3/16 x 7 inches

The first three-digit number describing a round can indicates the diameter measured across the outside of the chime on the seamed end. The second three-digit number indicates the overall height of the can with one end on.

In stating the dimensions of oval, obround, or obrotund cans, outside dimensions are used, the dimensions of the opening stated first, followed by the height. Thus, there will be three sets of figures: the first two being the long and short axis of the opening. Their interpretation in inches and sixteenths of an inch is the same as with round cans. An oval can might have the size given as 402 x 304 x 612, which would mean that the oval opening was 4-2/16 x 3-4/16 inches and the height was 6-12/16 inches.

In the table below the "No. 2 Equivalent" indicates the number of No. 2 cans equal to each of the cans designated in Column 1.

202 Can and End Specifications

Curl Diameter2.340 ± .006
Curl Height*0.080 ± .005
Curl Opening Diameter2.270 Min.
Countersink Depth0.270 ± .005
Countersink Radius0.020 Ref.
Countersink Diameter1.913 Ref.
Chuck Wall Angle12° Ref.
Panel Height0.090 ± .005
End Flange Width0.215 Ref.
*BMC .083 Nominal

Body Outside Diameter*2.602 ± .007
Flange Radius0.050 Ref.
Flange Width0.082 ± .008
Flange Can Height4.812 ± .015
Flange Diameter2.255 Max.
Neck Plug Diameter2.063 ± .007
Neck Seaming Clearance0.120 Min.
Headspace0.470 ± .020
*ANC 2.600 Nominal

*CMI does not provide either an expressed or implied warranty as to the manual’s viability or accuracy