For singles covers of 7 inches are common because of the format s smaller size.
Width of a vinyl record.
Records come in three standard sizes.
The lp was soon confronted by the 45 a 7 inch 180 mm diameter fine grooved vinyl record playing at 45 rpm.
Records in the 78 rpm format were usually sold with 10 inch covers but are uncommon today.
The most common sizes are seven 10 and 12 inches in diameter but size isn t the only way to identify what kind of vinyl record you have.
The number of grooves joining successive bands on a record shall not be less than 16 per inch.
A better way to group these discs and tell them apart is the speed in revolutions per minute or rpm at which they spin while playing on a turntable.
To compete with the lp boxed albums of 45s were issued along with ep extended play 45s which squeezed two or even three selections onto each side.
Vinyl record sizes differ based on how much music is stored on the surface of the disk.
Dimensional characteristics 78 rpm phonograph records for home use 10 records.
It was introduced by rca victor in 1949.
At a certain point records can become cramped with grooves and have to expand in size to accommodate the extra music play while maintaining the quality of the audio.
The size of disc varied over time with 10 inches eventually becoming a popular size.
7 inch 10 inch and 12 inch.