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🔌 Electrical & Electronics Converter

Convert electrical units, calculate circuits, and analyze components

Common Current Values

1 A = 1000 mA
Basic conversion
20 mA = 0.02 A
LED current
100 μA = 0.1 mA
Sensor current
15 A = 0.015 kA
Household circuit
5 mA = 5000 μA
IC operating current
1 kA = 1000 A
Industrial current

Common Voltage Values

5 V = 5000 mV
Logic voltage
3.3 V = 3300 mV
Microcontroller voltage
120 V = 0.12 kV
Household AC (US)
240 V = 0.24 kV
Household AC (EU)
12 V = 12000 mV
Automotive voltage
1 kV = 1000 V
High voltage

Common Resistance Values

1000 Ω = 1 kΩ
Basic conversion
330 Ω = 0.33 kΩ
LED current limiting
10 kΩ = 10000 Ω
Pull-up resistor
1 MΩ = 1000 kΩ
High impedance
50 mΩ = 0.05 Ω
Current shunt
4.7 kΩ = 4700 Ω
Common value

Conductance Conversions

1 S = 1000 mS
Basic conversion
0.001 S = 1 mS
1/1000 ohm
100 μS = 0.1 mS
10 kΩ equivalent
1 mS = 1000 μS
1 kΩ equivalent
0.1 S = 100 mS
10 Ω equivalent
20 S = 20000 mS
0.05 Ω equivalent

Common Capacitance Values

1 μF = 1000 nF
Basic conversion
100 nF = 0.1 μF
Decoupling capacitor
22 pF = 0.022 nF
Crystal load capacitor
470 μF = 0.47 mF
Power supply filter
10 nF = 10000 pF
Ceramic capacitor
1000 μF = 1 mF
Large electrolytic

Common Inductance Values

1 mH = 1000 μH
Basic conversion
100 μH = 0.1 mH
RF choke
10 mH = 10000 μH
Power inductor
22 μH = 22000 nH
Filter inductor
1 H = 1000 mH
Large inductor
470 μH = 0.47 mH
Common ferrite bead

Ohm's Law Calculator

V = I × R   |   P = V × I   |   P = I² × R   |   P = V² / R
Enter any two values to calculate the other two

Resistor Color Code Calculator

100 Ω ± 5%
Click the bands above to change colors, or use the color selectors below

Common Component Values

⚡ Standard Resistors (E12 Series)
100 Ω 0.1 kΩ
220 Ω 0.22 kΩ
330 Ω 0.33 kΩ
470 Ω 0.47 kΩ
1 kΩ 1000 Ω
2.2 kΩ 2200 Ω
🔋 Standard Capacitors
10 pF 0.01 nF
100 pF 0.1 nF
10 nF 0.01 μF
100 nF 0.1 μF
1 μF 1000 nF
10 μF 10000 nF
🧲 Standard Inductors
1 μH 1000 nH
10 μH 10000 nH
100 μH 0.1 mH
1 mH 1000 μH
10 mH 10000 μH
100 mH 0.1 H
⭐ Reference Values
Logic High (3.3V) 3300 mV
Logic High (5V) 5000 mV
LED Current 0.02 A
Pull-up Resistor 10000 Ω
Decoupling Cap 0.1 μF
Diode Drop 700 mV

Electrical Units Reference

Quantity Unit Symbol Common Ranges Applications
Current Ampere A μA to kA Circuit analysis, power systems
Voltage Volt V mV to kV Power supplies, signal levels
Resistance Ohm Ω mΩ to MΩ Resistors, impedance matching
Conductance Siemens S nS to S Inverse of resistance
Capacitance Farad F pF to mF Energy storage, filtering
Inductance Henry H nH to H Energy storage, filtering