Enter the horsepower, gallons per hour, pressure, and pump efficiency into the calculator to determine the missing variable.
- All Unit Converters
- CC to HP Calculator
- WHP to HP Calculator
- CFM to HP Calculator
- RWKW to HP Calculator
- HP to GPH Calculator
- Newton to HP Calculator
- PSI to HP Calculator
Gph To Hp Formula
The following formula is used to calculate the (hydraulic) horsepower for a given gallons per hour, pressure, and pump efficiency (assumes water, specific gravity = 1, with pressure in psi and flow in US gallons per hour).
HP = \frac{GPH \cdot P}{102840 \cdot E}Variables:
- HP is the horsepower
- GPH is the gallons per hour
- P is the pressure in psi
- E is the pump efficiency (decimal)
To calculate the horsepower, multiply the gallons per hour by the pressure. Divide the result by 102,840 times the pump efficiency.
| Flow (GPH) | Horsepower (HP) | Power (kW) |
|---|---|---|
| 50 | 0.035 | 0.026 |
| 100 | 0.069 | 0.052 |
| 150 | 0.104 | 0.078 |
| 200 | 0.139 | 0.104 |
| 250 | 0.174 | 0.129 |
| 300 | 0.208 | 0.155 |
| 400 | 0.278 | 0.207 |
| 500 | 0.347 | 0.259 |
| 600 | 0.417 | 0.311 |
| 750 | 0.521 | 0.388 |
| 900 | 0.625 | 0.466 |
| 1000 | 0.695 | 0.518 |
| 1200 | 0.833 | 0.622 |
| 1500 | 1.042 | 0.777 |
| 1800 | 1.250 | 0.932 |
| 2000 | 1.389 | 1.036 |
| 2500 | 1.736 | 1.295 |
| 3000 | 2.084 | 1.554 |
| 3500 | 2.431 | 1.813 |
| 4000 | 2.778 | 2.072 |
| *HP uses calculator formula: HP = (GPH × Pressure) / (102840 × Efficiency). Assumes Pressure = 50 psi, Efficiency = 0.70, and water (specific gravity = 1). Power in kW uses 1 hp = 0.7457 kW. | ||
What is Gph To Hp?
Gph to Hp is a calculation used to determine the horsepower required to pump a certain number of gallons per hour at a specific pressure and pump efficiency. This calculation is crucial in various industries, including agriculture, manufacturing, and water treatment, where efficient pump operation is essential for optimal performance and energy savings.
How to Calculate Gph To Hp?
The following steps outline how to calculate the Gph to Hp.
- First, determine the gallons per hour (GPH).
- Next, determine the pressure (P) in psi.
- Next, determine the pump efficiency (E) as a decimal.
- Finally, calculate the horsepower (HP) using the formula HP = (GPH * P) / (102840 * E).
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Gallons per hour (GPH) = 500
Pressure (P) = 50 psi
Pump Efficiency (E) = 0.85