dBm ↔ power
dBm ↔ power: use value, conversion. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
dBm = 10 log₁₀(P/mW); dBW = 10 log₁₀(P/W)
Variables & units
- Value
- Numeric value · minimum -1000000, maximum 1000000
- Conversion
- Select an option
Worked example
Change the supplied example values to match your circuit.
Assumptions
Logarithmic conversions require strictly positive power.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
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