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How long should ad music be: exactly as long as the ad

Ad music should be exactly as long as your ad, so the music ends when the ad ends. Finish the edit first, then pick a track at that length or just above it.

In short

  • Ad music should run exactly as long as the ad, so the music ends with your last line.
  • TikTok recommends 21 to 34 seconds for most ads, so a 30-second track fits most TikTok ads.
  • YouTube bumper ads are 6 seconds long, and non-skippable ads run 15 to 60 seconds, depending on the campaign.
  • A track made at the right length ends properly. A longer track cut short just stops, so trim the ad to 30 or 60 seconds where you can.
  • In Cutroom, any track up to 60 seconds costs 50 credits, so a shorter track saves nothing.
Close-up of a hand holding a smartphone with a stopwatch app running.
Photo by Castorly Stock on Pexels
The ad length TikTok recommends for most ads
21 to 34 s
The length of a YouTube bumper ad
6 s
A Cutroom track of 15, 30 or 60 seconds
50 credits

How long ads usually are

The platform and the ad format set the length of the ad, and the ad's length sets the length of the music.

Ad lengths by platform and format

From TikTok for Business and Google Ads help, read 21 September 2026.

Ad formatLengthSource
TikTok In-Feed ad21 to 34 seconds recommended, up to 60 secondsTikTok for Business
YouTube bumper ad6 secondsGoogle Ads help
YouTube non-skippable ad15 to 60 seconds, depending on the campaignGoogle Ads help
YouTube Shorts adUnder 60 seconds recommendedGoogle Ads help
YouTube skippable adNo maximum, under 3 minutes recommendedGoogle Ads help
  • Ad format: TikTok In-Feed ad

    Length
    21 to 34 seconds recommended, up to 60 seconds
    Source
    TikTok for Business
  • Ad format: YouTube bumper ad

    Length
    6 seconds
    Source
    Google Ads help
  • Ad format: YouTube non-skippable ad

    Length
    15 to 60 seconds, depending on the campaign
    Source
    Google Ads help
  • Ad format: YouTube Shorts ad

    Length
    Under 60 seconds recommended
    Source
    Google Ads help
  • Ad format: YouTube skippable ad

    Length
    No maximum, under 3 minutes recommended
    Source
    Google Ads help

How to pick the length of the music

Finish the edit first, so you know the exact length. Then pick the track length at or just above it.

  • A 28-second ad takes a 30-second track.
  • If your ad falls between two lengths, such as 45 seconds, trim the ad to 30 seconds, so the music ends with your last line.
  • If you cannot trim it, take the 60-second track and accept that the music stops in the middle of a phrase at 45 seconds.
  • If the ad's length changes later, make a new track with the same description.
  • Singing is slower than talking. Plan on about one sung word per second, so 30 seconds holds about 30 words.

This is the whole editor

Highlight a phrase and a clip lands on those exact words. No timeline, no keyframes, no layers.

CLIPS · 5I have thisexact conversationeverysingle week. Somebody sits down and says,oh yeah, I takecinnamonevery day.And honestly, doc, I have no idea if it works.So let me tell you what isin that capsule.a clip lands on these wordscut from the editTAKING CINNAMONEVERY DAY?is it doing anythingHeadlineMusicCaptionsTHIS VIDEOLength25.0sClips5Words removed18Export video

Why the music should end with the ad

Music made for 30 seconds is written to finish at 30 seconds. A 60-second track cut at 30 stops in the middle of a phrase.

  • The end of an ad is where you ask people to act, such as booking through a link. A track that stops in the middle of a phrase lands on that line, which is the reason to trim a 45-second ad to 30 seconds.
  • In Cutroom the music stops when the video ends, with no fade, so a track longer than the ad ends on a hard stop. That is why the two lengths should match.
  • Up to 60 seconds, every Cutroom track costs 50 credits, so matching the length costs nothing extra.

Where Cutroom fits

Cutroom's music tool makes a track at the length you pick, from a description you type.

  • Music comes with Basic, $39.99 a month for 2,500 credits. The free first video and Lite do not include it.
  • The music tool has no trimming, and a track cannot be edited after it is made.
  • The track is made for you, not licensed from a library. Read Cutroom's terms before you use it in a paid ad.
  • Two minutes is the longest track, so for hours of background music a music library subscription fits better.

Cutroom track lengths and prices

LengthCreditsFits
15 seconds50A 15-second YouTube ad or a short intro
30 seconds50Most TikTok ads, which TikTok suggests keeping to 21 to 34 seconds
60 seconds50A 60-second ad or a YouTube Short
90 seconds90A longer ad or an explainer
120 seconds130The longest track
  • Length: 15 seconds

    Credits
    50
    Fits
    A 15-second YouTube ad or a short intro
  • Length: 30 seconds

    Credits
    50
    Fits
    Most TikTok ads, which TikTok suggests keeping to 21 to 34 seconds
  • Length: 60 seconds

    Credits
    50
    Fits
    A 60-second ad or a YouTube Short
  • Length: 90 seconds

    Credits
    90
    Fits
    A longer ad or an explainer
  • Length: 120 seconds

    Credits
    130
    Fits
    The longest track

Questions people ask

How long should music be in an ad?
As long as the ad. Finish the edit, then pick a track at that length or just above it, so the music ends with your last line.
How long is a typical social media ad?
TikTok recommends 21 to 34 seconds for most ads and allows up to 60 for In-Feed ads. YouTube bumper ads are 6 seconds, and non-skippable ads run 15 to 60 seconds.
Should I make a long track and cut it down?
Not if you can make one at the right length. A track cut short stops in the middle of a phrase. In Cutroom every track up to 60 seconds costs 50 credits, so there is nothing to save.
How many words fit in a sung ad track?
About one word per second, because singing is slower than talking. That is about 15 words for 15 seconds and 30 for 30 seconds. Read the lyrics aloud at singing speed to check.
Should the music in my ad have singing in it?
Not if anyone talks in the ad, because sung and spoken words compete and people follow neither. Use an instrumental under a voiceover and keep sung tracks for ads where nobody speaks.
What if my ad changes length after I have the track?
Make a new track at the new length with the same description. It usually sounds similar, which keeps a series of ads consistent. Up to 60 seconds that is another 50 credits.
How much does ad music cost in Cutroom?
50 credits for any track up to 60 seconds, 90 for 90 seconds and 130 for 120 seconds. Music comes with Basic at $39.99 a month for 2,500 credits.

Finish the ad, check its length, and pick the track length at or just above it. Your first video is free; music comes with Basic at $39.99 a month.

Try for freeYour first video is free, no card, and you have 7 days to make it. It carries a Cutroom mark; Lite at $19.99/month removes it