Volts to dBm Converter
Use this tool to convert RMS (Root Mean Square) voltage to dBm based on system impedance. RMS represents the effective value of an AC voltage.
Conversion Formula:
P = V²/Z, then dBm = 10 × log₁₀(P × 1000)
Calculation Steps:
1. Calculate Power: P = V²/Z
2. Convert to mW: P_mW = P × 1000
3. Convert to dBm: 10 × log₁₀(P_mW)
Reference Points:
- 0.223V @ 50Ω = 0 dBm (1 mW)
- 7.07V @ 50Ω = 30 dBm (1 W)
This tool helps with:
Performing dBm calculations using the formula P = V²/Z, then dBm = 10 × log₁₀(P × 1000).
Converting RMS voltage to dBm values in RF and electrical measurements.
Verifying power levels in 50 Ω systems based on voltage readings.