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Conversion Calculator

Common PCB and RF conversions in one place.

Inputs

All sections calculate independently.

Distance
Temperature
dB and voltage gain
dB
dBm chain
dBm
dB
Ω
Rectangular to polar
Ω
Ω
Angular conversion
°
rad

Result

Enter your values to calculate a result.

The same value in another unit
The same value in another unit

Choose the input unit before entering a value. Each section works independently, so you can convert a distance, temperature, gain or angle without filling in the other sections.

Illustration only. Not to scale.

dBm out

N/A

DistanceN/A
TemperatureN/A
Voltage gainN/A
Polar magnitudeN/A
Method and assumptions

Distance uses 1 in = 1000 mil = 25.4 mm. Temperature uses the standard linear conversion.

Voltage gain from dB uses 10^(dB/20). Output power in dBm is the input power plus gain, less attenuation. The output voltage is the RMS value for the selected system impedance.

Polar conversion uses |Z| = √(R² + X²) and angle = atan2(X, R).

Conversions for the workbench

All sections update independently. The dBm chain assumes a matched system impedance. The displayed RMS voltage would produce the calculated power in that impedance.