ColorOhm is a pocket resistor color-code app for electronics students, hobbyists, and makers.
It helps you:
- Decode resistor bands into resistance values instantly
- Encode resistance values back into 3/4/5/6-band resistor colors
- Use a full color reference chart with digit, multiplier, tolerance, and PPM
Open Decode tab and choose band count (3, 4, 5, or 6).
Select each band color and ColorOhm calculates:
- Exact resistance value
- Tolerance
- Min and max range
You can then copy the computed value with one tap.
Open Encode tab and type a resistance value (Omega, kOmega, or MOmega).
Then choose:
- Band count
- Tolerance (and temperature coefficient for 6-band)
ColorOhm finds matching resistor band colors and renders a visual resistor preview.
Open Reference tab for the resistor color chart and mnemonic helper.
It includes:
- Digit values
- Multipliers
- Tolerance values
- Temperature coefficient values (PPM)
Open About tab to see app details, version info, project context, and creator profile.
