Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Mechanical
Pump Power Calculator
Calculate the shaft power required to drive a pump given flow rate, total head, efficiency, and fluid type. Ideal for engineers sizing pumps or estimating energy consumption in water supply, HVAC, and process systems.
Fill in the required fields to see your result.
Mechanical
Gear Ratio Calculator
Determine the output speed and mechanical advantage of a gear pair by entering tooth counts, input RPM, and system efficiency. Ideal for engineers and hobbyists designing gearboxes, drivetrains, or robotics.
Fill in the required fields to see your result.
Key differences
| Pump Power Calculator | Gear Ratio Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 4 |
| Result | Required Power (kW) | Output Speed (RPM) |
| What it does | Calculate the shaft power required to drive a pump given flow rate, total head, efficiency, and fluid type. Ideal for engineers sizing pumps or estimating energy consumption in water supply, HVAC, and process systems. | Determine the output speed and mechanical advantage of a gear pair by entering tooth counts, input RPM, and system efficiency. Ideal for engineers and hobbyists designing gearboxes, drivetrains, or robotics. |