I created this post 9 years ago on the other site for a project that never came to fruition.
Over the years I've gotten comments and messages that it was a helpful resource, so I'm reposting here so I doesn't get lost of I decide to delete my account.
I'll also have to fix the formatting once I'm on a desktop.
Enjoy!
Cartridge Type
Dimensions
Atari 800
77mm x 68mm x 21mm
Atari 2600/7800/Colecovision
87mm x 81mm x 19mm
Atari 5200
112mm x 104mm x 20mm
Vic20
139mm x 79mm x 17mm
Odyssey2
127mm x 80mm x 21mm
Intellivision
88mm x 68mm x 20mm
Famicom
108mm x 71mm x 17mm
NES
133mm x 119mm x 16mm
SNES
85mm x 134mm x 20mm
N64
75mm x 116mm x 18mm
GB
65.5mm x 57mm x 7.5mm
GBC
65.5mm x 57mm x 9mm
GBA
(Top) 60mm x 35mm x 9mm / (Bottom) 57mm x 35mm x 6mm
DS
35mm x 33mm x 3.8mm
3DS
35mm x 35mm (at the thick part on the top) x 3.8mm
I no longer have an EA cartridge to remeasure but after looking it up, consolemods.org has a list. While my measurements are different than what I have, there is still a significant difference between the normal cartridge and EA's version.
If I get my hands on one, I'll definitely take another look because there's still a 9mm discrepancy between our two widths and that's more than just a rounding error.