"33" or "33⅓" printed on label
The most reliable indicator. Look near the spindle hole or around the outer edge of the label. Some labels write it as "33⅓" while others just say "33".
Find the right RPM for any vinyl record in seconds. Pick a size or format below, or type in what you see on the label.
Pick a size and format above to see the answer.
Every common vinyl format and its correct speed. Bookmark this page and come back whenever you pull an unfamiliar record off the shelf.
| Size | Format | Speed | Tracks per side | Play time per side |
|---|---|---|---|---|
| 7" | Single | 45 RPM | 1 | 3–5 min |
| 7" | EP | 33⅓ RPM | 2–3 | 5–8 min |
| 10" | Single | 45 RPM | 1–2 | 4–7 min |
| 10" | Album / LP | 33⅓ RPM | 3–5 | 10–14 min |
| 10" | EP | 45 RPM | 2 | 6–8 min |
| 12" | Single | 45 RPM | 1 | 5–8 min |
| 12" | Album / LP | 33⅓ RPM | 5–7 | 18–25 min |
| 12" | EP | 33⅓ RPM | 3–4 | 12–16 min |
Note: Play times are approximate. Actual time varies by groove spacing and mastering choices.
When the sleeve is missing or the label is worn, these visual clues can help you figure out the speed before you drop the needle.
The most reliable indicator. Look near the spindle hole or around the outer edge of the label. Some labels write it as "33⅓" while others just say "33".
Common on 7-inch singles and 12-inch singles. Sometimes printed small near the track listing or in the bottom corner of the label.
If you see LP, Album, or Long Play anywhere on the label or sleeve, it is almost certainly 33⅓ RPM. This is the standard for full-length albums.
Extended Play records are trickier. 7-inch and 10-inch EPs are often 45 RPM, while 12-inch EPs are usually 33⅓ RPM. Check the size to narrow it down.
Records pressed at 45 RPM often have wider grooves (visible as more space between them). This is because 45 RPM needs more physical space per second of audio.
If a 12-inch record has just one track on each side, it is very likely a 45 RPM single. Albums at 33⅓ RPM fit more music per side.
These are the most frequent speed-related mix-ups. Knowing them ahead of time saves you from that embarrassing chipmunk moment.
This is the single biggest source of confusion. A 12-inch LP is 33⅓ RPM, but a 12-inch single is 45 RPM. The size alone does not tell you the speed. Check the label for "45" or look at how many tracks are on each side.
Most 7-inch records are 45 RPM singles, but 7-inch EPs and some special releases are 33⅓ RPM. If the record has three or more tracks per side, try 33 first.
10-inch records show up in used bins and reissue series. They can be either speed. If there is no marking, count the tracks. Two tracks per side usually means 45 RPM. Four or more means 33⅓ RPM.
If vocals sound unnaturally deep and slow, you are playing a 45 at 33. If everything sounds like a chipmunk, you are playing a 33 at 45. The record is fine. Just flip the speed switch.
Some reissues change the format. A song originally released as a 7-inch single might appear on a 12-inch reissue at 45 RPM. Always check the actual pressing you have, not what you expect.
Most records follow the rules above, but vinyl has a long history of exceptions. Here are the ones you might actually encounter.
Nearly extinct. Used for spoken word records and some automotive records in the 1960s. If you find one, it will be clearly marked. Most modern turntables do not support this speed.
Shellac records from before 1950. These are not vinyl and require a different stylus. They are usually 10-inch and feel heavier than vinyl. Do not play these on a standard cartridge.
Rare, but some 12-inch singles have one side at 45 RPM and one side at 33⅓ RPM. This happens when a DJ mix is pressed at 33 for longer play while the main track stays at 45 for loudness.
Thin, flexible records often included in magazines. They are usually 33⅓ RPM but can warp easily. Play them on a flat surface for best results.
If you are not sure about the speed, place the needle in the outer groove and listen for a few seconds. If voices sound too deep or too high, stop and switch. It takes two seconds and saves your stylus from unnecessary wear.
The area between the last groove and the label (called the dead wax or runoff) often has speed markings etched or stamped into it. Look for "33", "45", or "33⅓" scratched into the surface.
A dirty stylus makes every record sound worse and can cause skipping. A quick brush before each session keeps things sounding right. A stylus cleaning brush is one of the cheapest and most useful accessories you can own.
For unmarked records, start at 45 RPM. If it sounds slow, you know it is a 45 played at 33. If it sounds normal or slightly fast, check the track count. This trick works most of the time.