LUFS Explained: What Loudness Should Your Song Actually Hit?

LUFS stands for Loudness Units Full Scale. Unlike a peak meter, which just tells you the loudest single moment in your track, LUFS measures perceived average loudness over time — closer to how your ears actually judge how loud something feels. That's why two songs can hit the same peak level and still sound wildly different in loudness; LUFS is trying to capture that difference.

The most useful version for mixing engineers is integrated LUFS, which averages loudness across the entire track from start to finish.

Every major streaming platform — Spotify, Apple Music, YouTube, Tidal — runs loudness normalization. That means they turn tracks up or down to hit a target loudness, regardless of how loud you mastered them. If you slam your master to -6 LUFS thinking it'll sound huge, the platform just turns it down to match everyone else. All you've actually done is throw away dynamic range for nothing.

Here are the rough targets most platforms normalize toward:

- Spotify: around -14 LUFS

- Apple Music: around -16 LUFS

- YouTube: around -14 LUFS

- Tidal: around -14 LUFS

Mastering to roughly -14 LUFS integrated is a safe, competitive target for most modern music. It gives you a loud, punchy master without being turned down and losing impact.

Loudness isn't the only number to watch. True peak (measured in dBTP) accounts for peaks that happen between samples during digital-to-analog conversion — peaks a normal peak meter can miss entirely. If your true peak is too hot, you risk distortion once your file gets converted or compressed by a streaming platform's codec. A safe ceiling is usually -1 dBTP, which leaves headroom for that conversion without audibly changing your master.

The loudness war mentality — "louder always wins" — doesn't really apply anymore. Since every platform normalizes anyway, a master that's slightly quieter but has more dynamic range and punch will often sound better than one that's been squashed flat to hit an arbitrary peak level. Save your dynamics. Let the platform do the loudness matching for you.

Hitting a specific LUFS target while keeping your true peak in check and your master still sounding punchy is a balancing act — push too hard and you lose transients, too soft and the track feels weak next to everything else in someone's playlist. If you'd rather not ride a limiter by ear, [MixTrackLab's mastering step](https://mixtracklab.com/ai-mastering-online) is built to hit release-ready loudness at a safe true peak ceiling automatically, so your song is playlist-ready without the trial and error.