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
Calculate the gear ratio between two meshing gears from their tooth counts. Use it when designing drivetrains, selecting motor reduction gears, or analyzing the speed-versus-torque trade-off in any geared system.
Fill in the required fields to see your result.
Key differences
| Pump Power Calculator | Gear Ratio Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 2 |
| Result | Required Power (kW) | Gear Ratio (:1) |
| 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. | Calculate the gear ratio between two meshing gears from their tooth counts. Use it when designing drivetrains, selecting motor reduction gears, or analyzing the speed-versus-torque trade-off in any geared system. |