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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
UPS Runtime Calculator
Estimate how many minutes a UPS (uninterruptible power supply) will keep your equipment running on battery backup, based on battery capacity, connected load, and UPS efficiency. Use it when sizing a UPS for a server, computer workstation, or network equipment.
Fill in the required fields to see your result.
Key differences
| Ohm's Law Calculator | UPS Runtime Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 4 | 4 |
| Result | Calculated Value (varies) | Runtime (minutes) |
| 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. | Estimate how many minutes a UPS (uninterruptible power supply) will keep your equipment running on battery backup, based on battery capacity, connected load, and UPS efficiency. Use it when sizing a UPS for a server, computer workstation, or network equipment. |