LUFS stands for Loudness Units relative to Full Scale. It is a standardized measure of perceived loudness defined by the EBU R128 and ITU-R BS.1770 specifications. Unlike peak dBFS, LUFS accounts for how humans perceive volume over time, making it the standard used by all major streaming platforms for normalization.

Why do streaming platforms normalize loudness?

Platforms normalize playback so that loud and quiet tracks sound comparable in volume to listeners. Without normalization, a heavily limited pop master would blast compared to a quiet acoustic track. Each platform sets its own target — Spotify uses -14 LUFS, YouTube uses -14 LUFS, Apple Music uses -16 LUFS, etc.

What if my track is already quieter than the target?

Platform behavior varies. YouTube only attenuates audio louder than -14 LUFS and will not boost quieter tracks. Other services like Spotify or Apple Music may apply upward normalization if user settings permit and peak limits are not exceeded. It is generally best to master to the target level yourself rather than rely on platform gain adjustments.

Will applying gain cause clipping?

If your true peak is already close to 0 dBFS and you need to add positive gain, you risk intersample clipping. The calculator warns you when this is likely. In practice, you should ensure your true peak is at or below -1 dBTP before applying any positive gain adjustment.

What is the difference between integrated LUFS and short-term LUFS?

Integrated LUFS is the average loudness over the entire track — this is what platforms use for normalization. Short-term LUFS measures a 3-second sliding window and is useful for monitoring dynamics in real time. Always use the integrated reading when targeting a platform.

Can I use this tool to set the loudness of a podcast?

Yes. Measure your episode's integrated LUFS with a metering plugin (e.g., Youlean Loudness Meter, iZotope Insight, or the free LUFS Meter), enter the value here, and the tool tells you exactly how many dB to adjust your master fader.

Loudness LUFS Calculator

Enter your current loudness and pick a streaming platform to get the exact gain adjustment needed to hit its loudness target.

Track Loudness Input

Current Integrated Loudness (LUFS)

Measure with your DAW meter or a plugin like Youlean Loudness Meter.

LUFS

True Peak (dBTP) — optional

Needed for clipping warnings. Leave blank to skip.

dBTP

Target Streaming Platform

Enter your track loudness and press Calculate

Required Gain Adjustment

Current Loudness

Target Loudness

Platform Loudness Reference Table

Platform	Target (LUFS)	Max True Peak

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Summary

The Loudness LUFS Calculator helps audio engineers, podcasters, and music producers quickly find the gain adjustment needed to match a streaming platform's loudness normalization target. Enter your track's current integrated loudness in LUFS and select a target platform. The tool instantly computes the required gain in dB, explains whether you need to boost or attenuate, and warns if clipping is likely. All math is client-side — no audio files are uploaded.

How it works

Enter your track's current integrated loudness in LUFS (measured with a metering plugin or DAW).
Select a target streaming platform from the dropdown, or enter a custom LUFS target.
The calculator computes the difference between your current level and the platform target.
The required gain adjustment in dB is displayed, along with a plain-language recommendation.
A clipping warning appears if applying the gain would push your peaks above 0 dBFS.
Use the result to adjust your master fader or apply a trim gain in your DAW before export.

Use cases

Match a podcast episode to Spotify's -14 LUFS target without re-recording.
Check whether a music master needs gain reduction before uploading to YouTube.
Quickly compare loudness targets across multiple platforms in one view.
Teach audio students why streaming platforms normalize loudness and by how much.
Validate that a mastered track is already within a platform's acceptable loudness window.
Calculate gain trim for voiceover files before submitting to an audiobook distributor.

Frequently Asked Questions

Last updated: 2026-05-29 · Reviewed by Nham Vu