Decibel Calculator
Convert between power ratios and decibel values. Uses dB = 10 × log₁₀(P₂/P₁) for power and dB = 20 × log₁₀(V₂/V₁) for voltage/amplitude. Also shows common sound level references.
Inputs
Results
Decibels
10.00 dB
Ratio
10.0000
Decibel Results
| Parameter | Value |
|---|---|
| Mode | Power Ratio → dB |
| Reference Power (P₁) | 1 |
| Measured Power (P₂) | 10 |
| Power Ratio | 10.000000 |
| Decibels | 10.0000 dB |
| Formula | dB = 10 × log₁₀(P₂/P₁) |