Pitch Shift When 33 RPM Record Runs at 33.5 RPM
A 33 RPM record playing at 33.5 RPM has a pitch shift of approximately 26 cents.
How to use this tool
- Enter nominal rpm and actual rpm in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your pitch shift and the full breakdown beneath it.
Even a small 0.17 RPM deviation from 33.33 RPM causes a noticeable quarter-semitone pitch drift in music.
Frequently asked questions
- Why does turntable speed affect pitch?
- A record encodes audio at a fixed groove density. If it spins faster than intended, frequencies are higher (pitch goes up); slower means pitch drops.