Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
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.
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.
Key differences
| Ohm's Law Calculator | Wire Size Calculator | |
|---|---|---|
| Category | Electrical | Electrical |
| Inputs required | 4 | 4 |
| Result | Calculated Value (W) | Required Wire Size (AWG) |
| What it does | 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. | 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. |