Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Electrical Home
Ohm's Law Calculator
Solve for voltage, current, resistance, or power in any DC circuit using Ohm's Law. Ideal for electronics students, hobbyists, and engineers troubleshooting circuits.
Fill in the required fields to see your result.
Electrical Home
Wire Size Calculator
Find the correct wire gauge for any electrical circuit based on current load, run length, and allowable voltage drop. Use this when wiring outlets, appliances, or sub-panels to avoid overheating and energy loss.
Fill in the required fields to see your result.
Key differences
| Ohm's Law Calculator | Wire Size Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 4 | 4 |
| Result | Calculated Value (varies) | Minimum Wire Size (AWG) |
| What it does | Solve for voltage, current, resistance, or power in any DC circuit using Ohm's Law. Ideal for electronics students, hobbyists, and engineers troubleshooting circuits. | Find the correct wire gauge for any electrical circuit based on current load, run length, and allowable voltage drop. Use this when wiring outlets, appliances, or sub-panels to avoid overheating and energy loss. |