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Lyrics length & duration estimator

Count what you have written in seconds rather than lines. Pick a pace, read the per-section breakdown, and find out whether the second verse is twice as long as the first before you hear it.

DURATION ESTIMATE Paste lyrics with [Section] tags

Editable — presets just fill this in.

Adds a bar count at 4/4.

m:ss or seconds — gives a word budget.

Untagged lyrics are treated as one block.
How it works

What this tool is for

The estimate is word count divided by a sung-words-per-minute pace, applied per section, plus a small fixed allowance for sections that are mostly played rather than sung. An empty [Instrumental] is budgeted at twenty seconds, an [Intro] at eight, an [Outro] at ten — enough to keep the total honest when half your arrangement has no words in it.

The four presets are starting points, not laws: Ballad 75, Mid-tempo 95, Uptempo 120 and Rap 145 sung words per minute. Overwrite the number whenever your own material argues for it. If you fill in BPM, each section also gets a bar count at 4/4, which is the unit an arrangement is actually built from.

Long-section warning

Any section estimated over forty-five seconds is flagged. That is not a rule about song craft — it is a prompt that one part of your lyric carries far more weight than the rest, which usually shows up in a generation as a verse that outstays its welcome.

Target-length mode

Enter a target such as 3:00 and the tool subtracts the instrumental allowance, converts the remainder into a word budget at your chosen pace, and divides it across your sung lines. The suggested words-per-line figure tells you whether you are writing short and need another section, or writing long and need the scissors.

Privacy: the lyrics stay in the page. No upload, no storage.

Workflow

Compare drafts with the same pace setting

The absolute number matters less than the comparison. Lock a pace, estimate draft one, estimate draft two, and read the difference. That delta is reliable in a way the raw total never is.

Read the section breakdown

  • Verses that differ by more than a few seconds usually differ in syllable count too.
  • A chorus shorter than fifteen seconds rarely lands; one longer than forty rarely repeats well.
  • Zero-word sections show you how much of the runtime is arrangement, not writing.

Investigate a warning, do not obey it

A long bridge can be the best thing in the song. The flag means look, not cut.

Why it stays an estimate

Held notes, repeats the model invents, ad-libs, instrumental tails and syllable density all move the real duration. Treat the output as a planning figure with a comfortable margin either side, then check the truth against the finished audio in the song inspector.

FAQ

Common questions

How accurate is the estimate?

Close enough for planning, not for mastering. Expect meaningful variance from held notes, repeats and instrumental sections the model adds on its own.

Does it upload my lyrics?

No. The calculation runs entirely in your browser.

Why does it warn about long sections?

Because an unbalanced section is the most common cause of a generation that drifts. The warning points at the section; the decision stays yours.

What does the bar count assume?

4/4 time. One bar is four beats, so at 96 BPM a bar lasts two and a half seconds.

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