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Voltage Ratio to Decibels

Convert Voltage Ratio to Decibels instantly and accurately, right in your browser.

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About the Voltage Ratio to Decibels

Voltage Ratio to Decibels converts measurements from Voltage Ratio to Decibels. Enter a value and the equivalent is calculated immediately using the exact standard conversion factor — handy for cooking, travel, study, DIY and engineering.

How Voltage Ratio to Decibels works

dB = 20 × log10(voltage ratio).

Worked example: 10x voltage = 20 dB

How to use

  1. Enter the value you want to convert.
  2. The converted result appears instantly.
  3. Click Copy to use the result.

Common uses

  • Cooking and recipe conversions.
  • Travel between metric and imperial countries.
  • School, science and engineering work.
  • DIY, construction and everyday measurements.

Frequently asked questions

How accurate is the conversion?
It uses the exact standard conversion factor, rounded to six decimal places.
Is it free?
Yes — completely free with no sign-up, and it runs in your browser.