Not sure which calculator to use? Here's a side-by-side comparison of the Ohm's Law Calculator and Resistor Color Code Calculator to help you pick the right one for your needs.
Solve Ohm's law for voltage, current, or resistance. Enter any two of the three quantities and pick which one to solve for — the calculator also reports power.
Decode a 4-band resistor's color code into its resistance value and tolerance range, using the standard IEC 60062 color code table.
Includes visual bar chart breakdown
| Feature | Ohm's Law Calculator | Resistor Color Code Calculator |
|---|---|---|
| Category | Science & Engineering | Science & Engineering |
| Inputs | 3 required fields | 4 required fields |
| Outputs | 4 results | 4 results |
| Chart | No chart | bar chart |
| FAQs | 3 answered | 3 answered |
Choose the Ohm's Law Calculator if you need to calculate current. Use the Resistor Color Code Calculator if you need to calculate resistance. Both calculators are free and require no sign-up.
