Robert Halvari, Creator at Notes on vinyl
The dimensions of a vinyl record cover ought to be 12.375 inches square from corner to corner. This is the industry standard, and so every effort is made to follow these guidelines, equating to around 31.43 cm when translated to this other form of measurement.
What Size Should the Art on the Cover of a Record Be? Aim for dimensions of 1600 pixels by 1600 pixels. However, there is more of a push in the industry for dimensions more aligned with 3000 pixels by 3000 pixels.
12 Inch Records: Dimensions of the Cover the 12 inch record cover are 12.375 inches square from corner to corner or 31.43×31.43 cm.
10 Inch Records: Dimensions of the Cover The size of the 10-inch record sleeve is 10.125 inches square or 25.7×25.7 cm.
7 Inch Records: Dimensions of their Cover The size of the 7-inch record sleeve is 7.08 inches square or 18×18 cm.