Conversion Calculators
Quick tools for everyday electronics design.
Ohm's Law
Fill any two fields.
Resistor Color Code
4-band resistor.
LED Series Resistor
R = (Vs − Vf) / If
Voltage Divider
Vout = Vin × R2 / (R1 + R2)
Capacitor Code
3-digit code, e.g. 104.
Decibel Converter
Power or voltage ratio to dB.
Temperature
°C ⇄ °F ⇄ K
AWG to mm²
American Wire Gauge cross-section.