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BPM Calculator

Table of contents

What does BPM mean in music?How to use the BPM calculator? Find BPMBPM to ms calculator: How to calculate BPM?Note duration in the beats per minute calculatorHow do time signatures work?FAQs

This BPM calculator (aka BPM to ms calculator) converts between beat duration, BPM, and notes duration.

From the text, you'll learn:

  • What BPM means in music;
  • How to find BPM with this beats per minute calculator; and
  • How to calculate BPM from a simple formula.

Once you learn about BPM, you may want to check out our music interval calculator, our music scale calculator, or our chord calculator. You'll also find our delay and reverb calculator very interesting if you're craving some advanced stuff.

What does BPM mean in music?

BPM stands for "beats per minute." In music, it is a measure of the tempo of a song.

And what is tempo? Tempo is the speed of music β€” or the speed of its underlying pulse. If you tap your foot or clap your hands to different songs, you may notice that different songs have different paces. You can compare, e.g., Beethoven's "Moonlight Sonata" to "Turkish March" by Mozart.

How to use the BPM calculator? Find BPM

To find BPM with this BPM calculator:

  1. Set the time signature of a song in the BPM calculator. You can check it in the sheet music or determine it by yourself. To find it, tap your foot, count out loud, and choose the number which feels right. Start with counting to 4, then check 3 if 4 doesn't work.

  2. Check with a stopwatch how long each bar lasts. For example, if you're in 4/4, start the stopwatch on 1, count to 4, and stop it on 1.

  3. Input the time result into the "Measure duration" field of the BPM calculator.

Once you do it, you can find the BPM at the bottom of the first section of the calculator.

That's probably the easiest way to find BPM, but you can also insert the beat duration or set any note duration and the time signature.

Many online metronomes have the option to determine BPM based on your tapping tempo. An offline way is to tap with your foot (or clap) and check with an offline metronome. After some time, your intuition will begin to recognize BPM.

BPM to ms calculator: How to calculate BPM?

The first two fields of our BPM calculator function as a simple converter between BPM and the beat duration. We can express the beat duration in seconds or milliseconds (hence "BPM to ms calculator").

This BPM calculator uses this simple equation:

BPM = 1 min / beat duration

To find how many beats occur in a minute, we divide one minute by the duration of a beat. If the beat duration is expressed in seconds, we should use this equation:

BPM = 60 s / beat duration

For example, if a beat lasts 0.5s, BPM would equal 60 s / 0.5 s = 120.

If we transform the equation, we get the formula for the beat duration (in seconds):

beat duration = 60 / BPM

For example, in a song with a tempo of 100 BPM:

beat duration = 60 s / 100 = 0.6 s = 600 ms

πŸ™‹ If the beat duration is in other units of time, you can use our time unit converter to convert the said beat duration to either minutes or seconds.

Note duration in the beats per minute calculator

If you know the BPM of a song or the duration of any note and the time signature, you can find the rest of the notes' duration.

The notes durations are based on the following relationship between notes:

1 whole note

= 2 Γ— half note

= 4 Γ— quarter note

= 8 Γ— eighth note

= 16 Γ— sixteenth note

= 32 Γ— thirty-second note

Each row of notes has the same duration (a whole note in the first row, two half notes in the second row, and so on):

Duration of notes - example

How do time signatures work?

Time signature is denoted with two stacked numbers resembling a fraction. The lower number tells us what type of note corresponds to the beat duration. If it's "2" β€” it's a half note; if it's "4" β€” it's a quarter note; if it's "8" β€” it's an eighth note.

The upper number tells us how many of these beats fit in one bar.

The duration of all notes and rests in a bar must equal the number and type of notes defined by the time signature.

Let's go through examples of common meters:

  • 2/2 β€” one bar must consist of a set of notes and rests that are equivalent in duration to 2 half notes.
  • 2/4 β€” two quarter notes fit in a bar.
  • 3/4 β€” three quarter notes fit in a bar.
  • 6/8 β€” six eight notes fit in a bar.

Most songs in contemporary Western music use a 4/4 time signature.


What does BPM measure in music?

BPM stands for "beats per minute" in music. It is a measure of the tempo, or the speed of a song measured by counting the number of beats occurred in one minute. The higher BPM, the faster the tempo of the song and vice versa.

How to calculate BPM?

There are 2 easy ways to calculate the beats per minute (BPM) of a song:

  1. Count how many beats there are in a song with a 1-minute timer and the number you get should be the BPM of the song; or

  2. Use the equation BPM = 1 min / beat duration. For example, if the beat of a song lasts 1 s until the next beat, BPM = 60 s / 1 s = 60.

How many beats is 120 BPM?

120 BPM means that there are 120 beats occurring in a time range of 1 minute. It is one of the most common BPM used in music, which is considered as a moderate tempo.

For example, Believer by Imagine Dragons has 125 BPM, and Love Story by Taylor Swift has 119 BPM.

How to beat match songs with different BPMs?

Use one song with a halved BPM compared to the other's BPM. For instance, beats of a song with 180 BPM can be easily merged with another song with 90 BPM.

If you want to remix 2 songs with very slightly different BPM, you can also speed up or slow down one of the songs to match another.

Advanced ways like polyrhythmic techniques are also widely used among DJs to match up songs with the same BPM common denominators (60 BPM with 120 and 180 BPM).


Notes duration

Note types.
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