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Optical Power (dB / dBm / Watts)
Convert between absolute and logarithmic power units
Absolute Power
Watts (W)
Milliwatts (mW)
Microwatts (µW)
dBm
dBW
Relative Power (Ratio)
dB
Linear Ratio (P₁/P₂)
Percent (%)
dBm = 10 × log₁₀(P_mW)
|
dB = 10 × log₁₀(P₁/P₂)
0 dBm = 1 mW | 30 dBm = 1 W | -30 dBm = 1 µW