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dB Converter

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About dB Converter

Convert between decibels and linear amplitude or power values. Shows voltage and power ratios with common reference points.

How It Works

Enter a dB value or linear value to see amplitude and power representations with common reference points.

Frequently Asked Questions

What does -6 dB mean?
In amplitude: ~half the voltage. In power: -3 dB = half power. Amplitude uses 20×log10, power uses 10×log10.
What is 0 dBFS?
Maximum digital audio level. All levels are negative below it. Clipping occurs above 0 dBFS.