• 🎚️ LUFS Loudness Calculator

    Upload your song and measure its approximate integrated loudness, peak level, and loudness range.

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    Integrated Loudness
    --
    LUFS-I
    -- Peak dBFS
    -- Loudness Range
    -- Duration

    🎯 Compare With Target

    -30 LUFS -14 LUFS -6 LUFS
    What is LUFS?
    LUFS (Loudness Units relative to Full Scale) is a standardized way of measuring perceived loudness. Unlike a simple peak meter, LUFS takes the overall perceived loudness of your music into account.

    Tip: Don't automatically master every song to the loudest possible LUFS number. Dynamics, genre, arrangement, distortion, and the emotional impact of the song all matter.

    Privacy: Your audio is analyzed directly in your browser. This calculator does not upload your song to a server.
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  • A LUFS Loudness Calculator can help musicians, producers, mixing engineers, and mastering engineers measure the perceived loudness of audio. LUFS stands for Loudness Units relative to Full Scale and is commonly used when discussing the overall loudness of music, broadcasts, podcasts, and other audio content.

    Unlike simply looking at peak levels, LUFS measurements attempt to provide a better representation of how loud audio is perceived by human listeners. This makes loudness measurement useful when comparing different mixes or checking whether a master has an appropriate overall level.

    One important distinction is the difference between integrated, short-term, and momentary loudness. Integrated LUFS measures loudness across a longer period, while short-term and momentary measurements provide snapshots of what is happening at particular points in the recording.

    Don't assume that making a song louder will automatically make it sound better. Excessive limiting and compression can reduce dynamics, introduce distortion, and make a track feel fatiguing. A quieter master with better dynamics can sometimes sound more powerful and engaging.

    It's also important to remember that different platforms and distribution systems may apply their own loudness normalization. Because of this, there isn't one magic LUFS number that guarantees the best results everywhere.

    Tip: Use LUFS as one measurement among several. Listen critically to your track, check peak levels and true peaks, and consider the song's dynamics and genre before making mastering decisions. A technically “correct” loudness measurement doesn't automatically mean you have a great-sounding master.

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