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 & Power Calculator
Instantly compute voltage, current, resistance, or power in any DC circuit by entering two known quantities. Ideal for electronics hobbyists, electricians, and engineering students.
Fill in the required fields to see your result.
Key differences
| Pump Power Calculator | Ohm's Law & Power Calculator | |
|---|---|---|
| Category | Engineering | Engineering |
| Inputs required | 5 | 4 |
| Result | Required Power (W) | Calculated Value (W) |
| 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. | Instantly compute voltage, current, resistance, or power in any DC circuit by entering two known quantities. Ideal for electronics hobbyists, electricians, and engineering students. |