Record Speeds Explained: 33, 45, and 78 RPM

The three standard record speeds

Vinyl records come in three standard playing speeds: 33⅓, 45, and 78 revolutions per minute (RPM). The Library of Congress identifies grooved discs as 78s, 45s, and LPs, which correspond to those speeds. The speed at which a record spins affects playback pitch and duration, so it must match what the record was cut for.

Most turntables offer at least 33 and 45 RPM. Some also include 78 RPM, but playing a 78 correctly may require a different stylus. Understanding the purpose of each speed helps you pick the right record and the right player.

If you are new to vinyl, start with a budget-friendly turntable that includes both 33 and 45 speeds. For more on choosing a model, see our best Audio-Technica turntables guide.

33⅓ RPM: the LP standard

The 33⅓ RPM speed is used for long-playing (LP) records, typically 12-inch discs. This speed was introduced to fit a full album on one side, allowing up to about 30 minutes of music per side. Most modern vinyl albums are pressed at 33⅓ RPM.

Because LPs are the most common format for full-length releases, virtually every turntable that plays vinyl will support 33⅓ RPM. When you place a 12-inch album on the platter, set the speed selector to 33.

If you plan to build a collection of classic and new albums, you will spend most of your time at 33⅓ RPM. A player with accurate speed control, such as those in the best Fluance turntables range, is a good fit.

45 RPM: the single

The 45 RPM speed is used for 7-inch singles and some EPs. A 45 spins faster than an LP, which reduces playing time per side but often yields slightly better high-frequency detail and a punchier sound. This format became popular for hit singles in the mid-20th century.

Many modern turntables include a speed switch for 33 and 45, often labeled as two positions. A 7-inch single requires a 45 RPM adapter for the spindle, though some models have a built-in adapter.

If you enjoy collecting singles or small-format releases, check that your chosen turntable has a clean 45 RPM mode. For budget-friendly options, see our list of budget turntables.

78 RPM: the early format

The 78 RPM speed predates vinyl and was used for shellac records from about 1898 to the late 1950s. These discs are brittle and often one-sided or two-sided with one song per side. The Library of Congress includes 78s among grooved discs that require careful handling.

Playing a 78 correctly requires a turntable that can spin at 78 RPM and a stylus specially designed for the wider grooves of shellac records. Using a standard vinyl stylus on a 78 can damage the record.

If you own a collection of 78s, you will need a player that supports this speed and a dedicated 78 stylus. See our article on playing 78 RPM records for guidance, and for compatible models, explore the best direct drive turntables list.

How to switch speeds on a turntable

Most modern belt-drive and direct-drive turntables have a speed selector, usually a rocker switch or a button. Changing from 33 to 45 is as simple as flipping the switch while the platter is stationary. Some models allow speed changes while spinning, but it is best to stop the platter to avoid strain on the motor.

For 78 RPM, the selector may be a three-position control or a separate switch. Always check the owner's manual to confirm the exact position. If your turntable does not offer 78 RPM, an external speed controller cannot add it; the motor must be designed for it.

When you switch speeds, ensure the turntable's pitch control (if present) is set to the center detent, because a slight offset can change pitch even at the correct speed. See our article on turntable speed accuracy and wow/flutter to understand why stable speed matters.

For a step-by-step look at the speed switch mechanism, read turntable speed 33/45 switch. Consider a turntable with quartz lock for precise speed if you are a critical listener, as covered in quartz lock speed control.

Which speed should you use?

The speed you need is printed on the record's label. Always set the turntable to that speed before placing the stylus in the groove. If you play a record at the wrong speed, the music will be at the wrong pitch and may sound distorted.

For a new collection of full albums, you will almost exclusively use 33⅓ RPM. If you hunt for 7-inch singles, be ready to switch to 45. A turntable with a convenient speed switch makes this effortless.

If you are unsure which turntable to get, decide based on the records you already own. For general use, a model with both 33 and 45 such as those in the best automatic turntables category offers convenience. If you need 78 support, look for a dedicated switch and a compatible stylus, as explained in the guide to 78-ready turntables.

What to pick for your use

Questions

What does RPM stand for?

RPM stands for revolutions per minute, the number of times the record makes a full rotation in one minute.

Can I play a 45 RPM record on a turntable that only has 33 and 78?

No. You must set the player to 45 RPM; a turntable without that speed will play the record at the wrong pitch.

Do I need a special stylus for 78 RPM records?

Yes. 78s have wider grooves than vinyl, so a standard vinyl stylus (typically 0.7 mil) is not suitable. Use a stylus specifically rated for 78s, often 3 mil.

Is it okay to leave the turntable on while switching speeds?

It is safer to stop the platter before changing speeds. Many mechanisms engage better when the motor is not under load.

Why does my record play at the wrong pitch?

If the speed selector is set to the wrong RPM, the pitch will be off. Check the label and adjust the selector. A dirty speed control or a worn belt can also cause pitch problems.

Do all turntables support 78 RPM?

No. Many modern turntables only offer 33 and 45 RPM. 78 support is less common and often found on DJ turntables or dedicated players.