Electronics calculators
Every calculator runs in your browser, works on a phone at the workbench and accepts values in electronics notation like 4k7 or 2R2.
- Resistor color code calculator4, 5 and 6-band resistors, colors ↔ value
- SMD resistor code calculator3-digit, 4-digit and EIA-96 markings
- Standard resistor valuesE3–E192 tables and the nearest value
- Ohm's law calculatorVolts, amps, ohms and watts from any two
- LED resistor calculatorThe series resistor for one or more LEDs
- Voltage divider calculatorOutput voltage and standard resistor pairs
- Series & parallel resistorsTotals and two-resistor combinations
- Capacitor code calculator104 → 100 nF, tolerance and voltage codes
- Resistor color code chartReference
- EIA-96 code tableReference
- Common resistor valuesReference
- Capacitor codesReference