Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Electrical
Wire Size Calculator
Find the minimum wire cross-sectional area in circular mils needed to keep voltage drop within code limits for any DC or single-phase AC circuit. Use this when wiring long runs to panels, subpanels, motors, or outdoor equipment.
Fill in the required fields to see your result.
Electrical
Ohm's Law Calculator
Solve for voltage, current, resistance, or power in any DC circuit using Ohm's Law. Essential for electronics hobbyists, electricians, and engineering students troubleshooting circuits.
Fill in the required fields to see your result.
Key differences
| Wire Size Calculator | Ohm's Law Calculator | |
|---|---|---|
| Category | Electrical | Electrical |
| Inputs required | 4 | 4 |
| Result | Required Wire Size (AWG) | Calculated Value (W) |
| What it does | Find the minimum wire cross-sectional area in circular mils needed to keep voltage drop within code limits for any DC or single-phase AC circuit. Use this when wiring long runs to panels, subpanels, motors, or outdoor equipment. | Solve for voltage, current, resistance, or power in any DC circuit using Ohm's Law. Essential for electronics hobbyists, electricians, and engineering students troubleshooting circuits. |