BPM Delay Time Calculator: Calculate Delay Time From BPM

A BPM delay time calculator converts a song’s tempo into precise delay times in milliseconds for quarter notes, eighth notes, sixteenth notes, dotted notes, and triplets. This makes it easier to synchronize delay effects with the tempo of a song.

Enter your BPM above, choose a note value, and the calculator will show the corresponding delay time in milliseconds.

How to Calculate Delay Time From BPM

The basic formula for a quarter-note delay is:

Delay Time (ms) = 60,000 ÷ BPM

For other musical note values, multiply the quarter-note duration by the appropriate note value.

For example, at 120 BPM:

• Quarter note = 500 ms
• Eighth note = 250 ms
• Sixteenth note = 125 ms
• Dotted eighth note = 375 ms
• Quarter-note triplet ≈ 333.33 ms

As BPM increases, the time between beats becomes shorter. As BPM decreases, each beat takes longer.

BPM Delay Time Chart

Here are common tempo-synced delay values:

BPM	Quarter Note	Eighth Note	Sixteenth Note
60	1000 ms	500 ms	250 ms
80	750 ms	375 ms	187.5 ms
100	600 ms	300 ms	150 ms
110	545.45 ms	272.73 ms	136.36 ms
120	500 ms	250 ms	125 ms
128	468.75 ms	234.38 ms	117.19 ms
140	428.57 ms	214.29 ms	107.14 ms
150	400 ms	200 ms	100 ms
160	375 ms	187.5 ms	93.75 ms
180	333.33 ms	166.67 ms	83.33 ms

These values are based on the mathematical relationship between BPM and beat duration.

What Is Tempo-Synced Delay?

A tempo-synced delay repeats an audio signal at a time interval related to the musical tempo.

Instead of choosing an arbitrary delay such as 300 ms, you can choose a musical subdivision such as an eighth note. The resulting delay time changes automatically when the song's BPM changes.

For example, an eighth-note delay at 120 BPM is 250 ms. At 150 BPM, the same eighth-note delay is 200 ms.

This allows the delay repeats to remain rhythmically connected to the song.

Common Delay Note Values

Different note values create different rhythmic patterns.

Quarter Note Delay

A quarter-note delay is one beat long.

At 120 BPM:

60,000 ÷ 120 = 500 ms

So a quarter-note delay at 120 BPM is 500 ms.

Eighth Note Delay

An eighth note is half the duration of a quarter note.

At 120 BPM:

500 × 0.5 = 250 ms

So an eighth-note delay is 250 ms.

Sixteenth Note Delay

A sixteenth note is one quarter of a quarter note.

At 120 BPM:

500 × 0.25 = 125 ms

So a sixteenth-note delay is 125 ms.

Dotted Eighth Note Delay

A dotted eighth note lasts one and a half times the duration of a normal eighth note.

At 120 BPM:

250 × 1.5 = 375 ms

So a dotted eighth delay is 375 ms.

Dotted-eighth delays are commonly useful when you want repeats that create a more rhythmic, syncopated feel.

Triplet Delay

A triplet subdivision divides a beat into three equal parts.

A quarter-note triplet at 120 BPM is:

500 × 2/3 ≈ 333.33 ms

The exact value depends on which triplet subdivision you select.

Why Does BPM Affect Delay Time?

BPM means beats per minute. It tells you how many beats occur during one minute.

At a slower BPM, each beat lasts longer. At a faster BPM, each beat lasts for less time.

For example:

• 60 BPM = 1,000 ms per beat
• 120 BPM = 500 ms per beat
• 180 BPM ≈ 333.33 ms per beat

This inverse relationship is why a tempo-synced delay must use a shorter millisecond value as BPM increases.

If you need a general conversion between BPM and milliseconds, use the BPM to Milliseconds Calculator.

How to Use a BPM Delay Calculator

Using the calculator is straightforward:

1. Enter the song's BPM.
2. Select the desired musical note value.
3. Read the calculated delay time in milliseconds.
4. Enter that value into your delay plugin if it does not provide automatic tempo synchronization.
5. Adjust the feedback, mix, and other effect controls according to the sound you want.

For example, if your song is 128 BPM and you want an eighth-note delay:

60,000 ÷ 128 = 468.75 ms

Then:

468.75 × 0.5 = 234.375 ms

The resulting delay time is approximately 234.38 ms.

BPM Delay Time for Music Production

Tempo-based delay calculations are useful in music production when a delay effect needs to follow the rhythm of the track.

They can be useful for:

• Vocal delay
• Guitar delay
• Synth effects
• Lead instruments
• Rhythmic electronic effects
• Dub-style effects
• Tempo-synchronized sound design

The best note value depends on the arrangement and the rhythmic effect you want.

A quarter note can create a more spacious repeat, while eighth and sixteenth notes can produce faster rhythmic patterns.

What Is a Dotted-Eighth Delay?

A dotted-eighth delay is a delay time equal to one and a half eighth notes.

The calculation is:

Dotted Eighth = Quarter Note × 0.75

At 120 BPM:

500 × 0.75 = 375 ms

At 150 BPM:

400 × 0.75 = 300 ms

Because the calculation is based on BPM, the exact millisecond value changes with the tempo.

BPM Delay Time and Plugin Tempo Sync

Many modern delay plugins can synchronize their timing directly to the host application's BPM.

When a plugin is synchronized to tempo, you may see options such as:

• 1/4
• 1/8
• 1/16
• 1/8D
• 1/4T
• 1/16T

These represent different musical subdivisions.

If your delay plugin uses milliseconds instead of musical subdivisions, the calculator can convert the desired rhythmic value into the corresponding millisecond setting.

BPM Delay Time vs. BPM to Milliseconds

These two calculations are closely related but serve different purposes.

The BPM to Milliseconds Calculator focuses on converting BPM into the time duration of a beat.

The BPM Delay Time Calculator focuses on using that beat duration to calculate a practical tempo-synchronized delay value for a selected musical subdivision.

For example, at 120 BPM:

• One beat = 500 ms
• Quarter-note delay = 500 ms
• Eighth-note delay = 250 ms
• Sixteenth-note delay = 125 ms
• Dotted-eighth delay = 375 ms

This makes the delay calculator particularly useful for music production and effects timing.

Common BPM Delay Examples

120 BPM

At 120 BPM:

• Whole note = 2,000 ms
• Half note = 1,000 ms
• Quarter note = 500 ms
• Eighth note = 250 ms
• Sixteenth note = 125 ms
• Dotted eighth = 375 ms

128 BPM

At 128 BPM:

• Quarter note = 468.75 ms
• Eighth note = 234.38 ms
• Sixteenth note = 117.19 ms
• Dotted eighth = 351.56 ms

140 BPM

At 140 BPM:

• Quarter note ≈ 428.57 ms
• Eighth note ≈ 214.29 ms
• Sixteenth note ≈ 107.14 ms
• Dotted eighth ≈ 321.43 ms

Frequently Asked Questions

What is the delay time for 120 BPM?

At 120 BPM, one quarter-note beat is 500 milliseconds. An eighth-note delay is 250 ms, while a sixteenth-note delay is 125 ms.

How many milliseconds is one beat at 120 BPM?

One beat at 120 BPM lasts 500 milliseconds.

How do I calculate delay time from BPM?

For a quarter-note delay, divide 60,000 by the BPM:

Delay Time = 60,000 ÷ BPM

For other note values, multiply the quarter-note duration by the appropriate subdivision.

What is the delay time for 100 BPM?

At 100 BPM, a quarter note lasts 600 ms, an eighth note lasts 300 ms, and a sixteenth note lasts 150 ms.

What is a good delay time for vocals?

There is no single delay time that works for every vocal recording. A tempo-synchronized quarter, eighth, dotted-eighth, or other rhythmic value can be calculated from the song's BPM and then adjusted to fit the mix.

What is the difference between BPM and delay time?

BPM describes the tempo of music in beats per minute. Delay time describes the time interval before an audio repeat occurs, normally measured in milliseconds. BPM can be converted into delay time using musical note subdivisions.

Can I convert milliseconds back to BPM?

Yes. For a quarter-note beat, the reverse formula is:

BPM = 60,000 ÷ milliseconds

For example, 500 ms corresponds to 120 BPM.

For a broader explanation of BPM calculations, see How to Calculate BPM.

Calculate Your Delay Time

Use the BPM Delay Time Calculator above to convert any tempo into a practical delay setting.

Enter the BPM of your track, choose a note value, and use the calculated millisecond value in your delay plugin.

If you first need to determine the tempo of a track, you can use the BPM Calculator to calculate BPM from beats and elapsed time.