dB ↔ Linear Conversion calculator
Convert between optical dB / dBm and linear ratios or power.
Category: Photonics
Formula: dB = 10·log₁₀(P/Pref)
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| Loss/Gain | dB | dB | 3 |
| Power | dBm | dBm | 10 |
Result with the default inputs
- Linear ratio: 1.9953×
- Power: 10 mW
Open it with your own values: put each input in the address as a parameter, for example /calculators/db-linear-conversion?dB=3. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Decibel