Convert Gallons per hour to Gallons per minute
Instantly convert Gallons per hour (GPH) to Gallons per minute (GPM) with our free online calculator.
Formula: GPH to GPM — multiply by 0.0166668
Reference Table
| Gallons per hour (GPH) | Gallons per minute (GPM) |
|---|---|
| 1 | 0.0166668 |
| 5 | 0.0833339 |
| 10 | 0.166668 |
| 25 | 0.416669 |
| 50 | 0.833339 |
| 100 | 1.66668 |
How to Convert Gallons per hour to Gallons per minute
Formula
To convert Gallons per hour (GPH) to Gallons per minute (GPM): multiply by 0.0166668
Step-by-Step
- Start with your value in Gallons per hour (GPH).
- Multiply by 0.0166668 to perform the conversion.
- The result is your value expressed in Gallons per minute (GPM).
Conversion Factor
1 GPH = 0.0166668 GPM
Reverse Factor
1 GPM = 59.9996 GPH
Worked Example
Convert 25 Gallons per hour to Gallons per minute: 25 GPH = 0.416669 GPM
About Gallon per hour (GPH)
A US flow-rate unit (US gallons per hour) used for slow, metered, or steady-state low-flow applications. Common applications: aquarium and pond circulation pumps (a typical canister filter for a 75-gallon aquarium delivers 250-350 GPH), water-feature and fountain recirculators, agricultural drip-irrigation emitters (rated 0.5-4 GPH at design pressure per ASABE EP458), residential oil-burner fuel nozzle ratings (most US oil furnaces use 0.5-2.0 GPH nozzles), commercial fuel-dispensing meters (where GPH is the throughput rating, often combined with a separate gallons-pumped-per-minute peak), and reverse-osmosis water-purification membranes (GPH membrane capacity is the marketing spec on most US residential RO systems). Marine fuel-flow meters typically report consumption in GPH, a useful figure for cruising range and fuel-burn-per-mile calculations. 1 GPH = 0.01667 GPM = 0.0631 L/min = 1.0515 × 10⁻⁶ m³/s.
About Gallon per minute (GPM)
A US customary flow-rate unit (US gallons per minute, where 1 US gallon = 3.785411784 liters per NIST SP 811) used universally in US plumbing, HVAC, fire protection, agricultural irrigation, and swimming-pool circulation. GPM is the primary US sizing unit for residential water softeners (the IAPMO Z601 test method rates ion-exchange capacity at a defined GPM), well-pump submersibles, lawn sprinkler design (the GPM at each emitter sets zone sizing), NFPA 13 fire-sprinkler systems (head-flow allocations in GPM), and pool circulation (turnover rates require X GPM × hours). Reference values: a US WaterSense-certified showerhead is ≤ 2.0 GPM, an older US showerhead is 2.5-3 GPM, a residential dishwasher is ~3-4 GPM peak, a 4-inch municipal fire hydrant delivers 500-1,500 GPM (NFPA test pressure 20 psi residual). 1 GPM = 3.7854 L/min = 0.06309 L/s. Care: US GPM ≠ Imperial GPM (a UK gallon is 4.54609 L, so 1 Imperial GPM = 1.201 US GPM).
Quick Facts
- 1 Gallon per hour equals 0.0166668 Gallons per minute
- 1 Gallon per minute equals 59.9996 Gallons per hour
- Gallon per hour is a unit of volumetric flow rate
- Gallon per minute is a unit of volumetric flow rate
- This conversion is commonly used in plumbing, HVAC systems, and chemical process engineering
- The Gallon per hour belongs to the imperial system
Common Gallon per hour to Gallon per minute Conversions
| Gallons per hour (GPH) | Gallons per minute (GPM) |
|---|---|
| 0.01 | 0.000166668 |
| 0.1 | 0.00166668 |
| 0.25 | 0.00416669 |
| 0.5 | 0.00833339 |
| 1 | 0.0166668 |
| 2 | 0.0333335 |
| 3 | 0.0500003 |
| 5 | 0.0833339 |
| 10 | 0.166668 |
| 15 | 0.250002 |
| 20 | 0.333335 |
| 25 | 0.416669 |
| 50 | 0.833339 |
| 75 | 1.25001 |
| 100 | 1.66668 |
| 250 | 4.16669 |
| 500 | 8.33339 |
| 1000 | 16.6668 |
| 5000 | 83.3339 |
| 10000 | 166.668 |
Understanding Gallons per hour
The Gallon per hour (symbol: GPH) is a unit of volumetric flow rate. A US flow-rate unit (US gallons per hour) used for slow, metered, or steady-state low-flow applications. Common applications: aquarium and pond circulation pumps (a typical canister filter for a 75-gallon aquarium delivers 250-350 GPH), water-feature and fountain recirculators, agricultural drip-irrigation emitters (rated 0.5-4 GPH at design pressure per ASABE EP458), residential oil-burner fuel nozzle ratings (most US oil furnaces use 0.5-2.0 GPH nozzles), commercial fuel-dispensing meters (where GPH is the throughput rating, often combined with a separate gallons-pumped-per-minute peak), and reverse-osmosis water-purification membranes (GPH membrane capacity is the marketing spec on most US residential RO systems). Marine fuel-flow meters typically report consumption in GPH, a useful figure for cruising range and fuel-burn-per-mile calculations. 1 GPH = 0.01667 GPM = 0.0631 L/min = 1.0515 × 10⁻⁶ m³/s.
It belongs to the imperial measurement system.
Gallons per hour are commonly used in plumbing, HVAC systems, and chemical process engineering.
Understanding Gallons per minute
The Gallon per minute (symbol: GPM) is a unit of volumetric flow rate. A US customary flow-rate unit (US gallons per minute, where 1 US gallon = 3.785411784 liters per NIST SP 811) used universally in US plumbing, HVAC, fire protection, agricultural irrigation, and swimming-pool circulation. GPM is the primary US sizing unit for residential water softeners (the IAPMO Z601 test method rates ion-exchange capacity at a defined GPM), well-pump submersibles, lawn sprinkler design (the GPM at each emitter sets zone sizing), NFPA 13 fire-sprinkler systems (head-flow allocations in GPM), and pool circulation (turnover rates require X GPM × hours). Reference values: a US WaterSense-certified showerhead is ≤ 2.0 GPM, an older US showerhead is 2.5-3 GPM, a residential dishwasher is ~3-4 GPM peak, a 4-inch municipal fire hydrant delivers 500-1,500 GPM (NFPA test pressure 20 psi residual). 1 GPM = 3.7854 L/min = 0.06309 L/s. Care: US GPM ≠ Imperial GPM (a UK gallon is 4.54609 L, so 1 Imperial GPM = 1.201 US GPM).
It belongs to the imperial measurement system.
Gallons per minute are commonly used in plumbing, HVAC systems, and chemical process engineering.
Why Convert Gallons per hour to Gallons per minute?
Converting between Gallons per hour and Gallons per minute is a frequent requirement for engineers, scientists, and students working with volumetric flow rate values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate volumetric flow rate conversion is essential.
Frequently Asked Questions
How do I convert Gallons per hour to Gallons per minute?
A US flow-rate unit (US gallons per hour) used for slow, metered, or steady-state low-flow applications. To convert Gallons per hour to Gallons per minute, multiply by 0.0166668. For example, 25 GPH equals 0.416669 GPM.
How many Gallons per minute are in 1 Gallon per hour?
There are 0.0166668 Gallons per minute in 1 Gallon per hour.
How many Gallons per hour are in 1 Gallon per minute?
There are 59.9996 Gallons per hour in 1 Gallon per minute.
What is the formula for Gallon per hour to Gallon per minute conversion?
The formula is: multiply by 0.0166668. This means 1 GPH = 0.0166668 GPM.
Is a Gallon per hour bigger than a Gallon per minute?
Yes. One Gallon per hour is larger than one Gallon per minute because 1 GPH equals 0.0166668 GPM, which is less than 1.
When do you need to convert between Gallons per hour and Gallons per minute?
A US customary flow-rate unit (US gallons per minute, where 1 US gallon = 3. Gallon per hour and Gallon per minute are both volumetric flow units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.