What this LUFS calculator does
This LUFS calculator helps you estimate how much gain you should add or reduce to match a target loudness standard. It also predicts your new true peak after that gain change, so you can quickly see whether your master may clip or exceed your ceiling.
LUFS (Loudness Units relative to Full Scale) is the modern way to measure perceived loudness. Unlike simple peak metering, LUFS reflects how humans hear sound over time. That is why streaming platforms, podcast networks, and broadcasters rely on LUFS normalization.
Quick LUFS targets you can use
- Spotify / YouTube: around -14 LUFS integrated
- Apple Music: often around -16 LUFS
- Podcasts (stereo): around -16 LUFS
- Podcasts (mono voice): around -19 LUFS
- EBU broadcast: -23 LUFS
- ATSC broadcast: -24 LUFS
How to use the calculator
1) Enter your current integrated LUFS
Measure your track using a reliable loudness meter (such as Youlean, iZotope Insight, NUGEN VisLM, or your DAW’s loudness tool). Enter the integrated LUFS value after your full song or program has been analyzed.
2) Enter your current true peak
True peak matters because encoding and conversion can create inter-sample overs. If your projected true peak goes above your desired ceiling, you may need limiting, clipping control, or a smaller gain increase.
3) Choose your target and calculate
Select a preset or type a custom target. The tool will output:
- Required gain change (in dB)
- Estimated output LUFS
- Predicted output true peak
- Whether a limiter is likely needed
How to interpret your result
A positive gain change means your mix is quieter than target and needs to be turned up. A negative gain change means your mix is louder than target and should be turned down. If the predicted true peak exceeds your ceiling, apply peak control and re-check with a loudness meter.
Keep in mind that this is a planning calculator, not a replacement for measurement. Final compliance should always be verified with a proper LUFS meter on your rendered file.
Best practices for streaming and podcast loudness
Use loudness first, then tone polish
Set your loudness target early in mastering decisions. Chasing loudness after heavy EQ and limiting can produce harsh, fatiguing audio.
Protect transients with sensible limiting
If you need extra level, use moderate compression and transparent limiting instead of extreme clipping. Over-limited masters can sound smaller, even when they meter louder.
Leave true peak headroom
For distribution, a ceiling around -1.0 dBTP is common. Some engineers go slightly lower (like -1.2 dBTP) for extra encoding safety.
FAQ
Is LUFS the same as RMS?
Not exactly. RMS is an older average power measurement. LUFS applies frequency weighting and gating, making it a better proxy for perceived loudness.
Why does my song get turned down on streaming?
If your integrated LUFS is louder than platform target, the service usually reduces playback gain. That can remove any “loudness advantage” while preserving distortion from over-limiting.
Can I master louder than -14 LUFS?
Yes, creatively you can. But if normalized playback is expected, louder masters are often turned down. Many engineers prioritize punch, dynamics, and tonal balance over chasing a hotter number.