How to Convert LRC to SRT — Lyrics to Subtitle Guide | AllSubConverter

Turning an LRC lyrics file into an SRT subtitle file sounds like a simple format swap, but there is one awkward asymmetry between the two: LRC only records when each line starts, while SRT requires both a start and an end time for every subtitle. That missing end time is the heart of the conversion challenge, and this guide explains how a good converter handles it without producing subtitles that disappear too fast or linger too long.

Why move from LRC to SRT?

LRC was designed for audio playback. Music players read a line, show it until the next timestamp arrives, and move on — they never need an explicit end time because the next line's start implicitly defines the previous one's duration. Video is different. A video subtitle engine needs to know exactly when each block should appear and disappear, even for the final line of a file, because there may be no "next line" to borrow a time from.

SRT is the universal format for that job. Every major video editor — Premiere Pro, DaVinci Resolve, Final Cut Pro — and every streaming platform — YouTube, Vimeo, most social networks — accepts SRT. If you want to overlay lyrics on a music video, hard-sub a performance, or add captions to a tutorial, you almost always end up needing SRT.

Property	LRC	SRT
Timestamp	[mm:ss.xx] start only	hh:mm:ss,mmm --> hh:mm:ss,mmm
End time	Not stored	Required for every entry
Sequence numbers	None	Numbered cues
Primary use	Music and karaoke	Film, TV, web video

The end-time problem — and how it gets solved

Because LRC carries no end times, a converter has to estimate them. The standard approach is elegant and works well in practice:

1. For every line except the last, set the end time equal to the start time of the next line. This mirrors how music players behave anyway, so the result feels natural.
2. For the final line, where there is no following timestamp to borrow, apply a default display duration — typically 3 to 5 seconds — so the last lyric stays on screen long enough to read.
3. Apply a minimum display duration (usually 1 to 2 seconds) so that lines with very short gaps between them do not flash past unreadably.

Why this matters: a naive converter that leaves end times blank or sets them all to a fixed value produces subtitles that either vanish instantly or pile up on screen. The "next line start" heuristic is what makes LRC-to-SRT output genuinely usable in a real video timeline.

A worked conversion example

Here is a short LRC snippet, the kind you might have for a three-line chorus:

[01:05.30]Producing engaging content
[01:08.50]Requires proper subtitles
[01:11.80]For viewer accessibility

After conversion, the first line runs until the second line begins, the second runs until the third begins, and the third gets a default tail duration:

1
00:01:05,300 --> 00:01:08,500
Producing engaging content

2
00:01:08,500 --> 00:01:11,800
Requires proper subtitles

3
00:01:11,800 --> 00:01:15,000
For viewer accessibility

Notice the changes: sequence numbers were added, the [mm:ss.xx] timestamps expanded into full hh:mm:ss,mmm ranges, and the missing end times were filled in intelligently.

Common use cases

• Lyric videos for YouTube. Convert your LRC, import the SRT into your editor, and the words land on the timeline already timed to the music.
• Music video post-production. Most NLEs import SRT directly as a caption track you can restyle or burn in.
• Karaoke to video. Move a karaoke LRC library into a video format for streaming or social clips.
• Accessibility. If you already have synced lyrics, converting them to SRT is the fastest route to proper closed captions for a video.

What about LRC metadata?

LRC files often begin with header tags like [ar:Artist], [ti:Title], or [al:Album]. SRT has no metadata header of its own, so the converter preserves this information as comment lines at the top of the file. It does not affect playback, but it keeps the source attribution intact for anyone editing the file later.

Frequently asked questions

How are end timestamps calculated?

Each line's end time is set to the next line's start time. For the final line, a default duration (usually around 3 seconds) is appended so the last subtitle does not vanish the instant it appears.

What if my LRC lines are very close together?

A minimum display duration prevents ultra-short flashes. If two lines are only a few hundred milliseconds apart, the converter extends the first to a readable length and shifts overlap cleanly.

Can I edit the SRT after conversion?

Yes. SRT is plain text, so you can open it in any editor or subtitle tool to fine-tune timing, fix line breaks, or adjust wording before importing it into a video project.

Will the converted SRT work on YouTube?

Yes. SRT is one of YouTube's natively accepted caption formats, so you can upload the converted file directly as a subtitle track.

Convert your LRC to SRT now

The whole conversion runs in your browser — no uploads, no account, no waiting. Drop in your LRC file and download a properly timed SRT ready for your video editor.

Last updated: March 20, 2026