Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Engineering
Pump Power Calculator
Calculate the shaft power a pump must deliver to move fluid against a given head at a specified flow rate and efficiency. Ideal for selecting pumps in water supply, HVAC, and process piping systems.
Fill in the required fields to see your result.
Engineering
Ohm's Law Calculator
Calculate electrical resistance from voltage and current using Ohm's Law: R = V / I. Use it for circuit analysis, troubleshooting electronic circuits, or sizing resistors and conductors in DC and AC (resistive) systems.
Fill in the required fields to see your result.
Key differences
| Pump Power Calculator | Ohm's Law Calculator | |
|---|---|---|
| Category | Engineering | Engineering |
| Inputs required | 5 | 2 |
| Result | Required Power (W) | Resistance (Ω) |
| What it does | Calculate the shaft power a pump must deliver to move fluid against a given head at a specified flow rate and efficiency. Ideal for selecting pumps in water supply, HVAC, and process piping systems. | Calculate electrical resistance from voltage and current using Ohm's Law: R = V / I. Use it for circuit analysis, troubleshooting electronic circuits, or sizing resistors and conductors in DC and AC (resistive) systems. |