Audio Headroom & Gain Staging Calculator
Find the gain to apply so your loudest peak lands on a target level, and see how much digital headroom you keep below 0 dBFS.
How it works
Gain (dB) = target − current peak · Headroom = 0 − target · Linear = 10^(gain ÷ 20)
Good gain staging keeps every stage of the signal chain well below 0 dBFS — the point where digital audio clips hard. The gain you need is simply the difference between where your peak sits now and where you want it. Leaving 6 dB or more of headroom protects against inter-sample peaks and gives mix-bus processors room to work without distortion, which is why engineers aim for peaks around −6 dBFS rather than slamming the ceiling.
Worked example
A track peaking at −3 dBFS that you want at −6 dBFS needs −6 − (−3) = −3 dB of gain (a ×0.708 multiplier). That leaves 6 dB of headroom below 0 dBFS for safety and downstream processing.
Frequently asked questions
Why not just peak at 0 dBFS?
Peaking right at 0 dBFS risks clipping from inter-sample peaks — the reconstructed analog waveform can overshoot the samples by up to a decibel or more. Converters and lossy codecs can then distort. Leaving 3–6 dB of headroom keeps peaks and true-peak levels safely under the ceiling.
Is dBFS the same as loudness?
No. dBFS measures peak sample level, while perceived loudness is measured in LUFS over time. Two tracks can share the same peak yet sound very different in loudness. Set peaks with this calculator, then set loudness with a LUFS meter.
What is a negative gain multiplier?
Gain in decibels can be negative (attenuation), but the linear multiplier is always positive — it just falls below 1. A −6 dB gain is a ×0.5 multiplier, halving the amplitude; a +6 dB gain is ×2.
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This calculator is for educational purposes. Double-check important results before acting on them.