Convert Gallons per minute to Gallons per hour
Instantly convert Gallons per minute (GPM) to Gallons per hour (GPH) with our free online calculator.
Formula: GPM to GPH — multiply by 59.9996
Reference Table
| Gallons per minute (GPM) | Gallons per hour (GPH) |
|---|---|
| 1 | 59.9996 |
| 5 | 299.998 |
| 10 | 599.996 |
| 25 | 1499.99 |
| 50 | 2999.98 |
| 100 | 5999.96 |
How to Convert Gallons per minute to Gallons per hour
Formula
To convert Gallons per minute (GPM) to Gallons per hour (GPH): multiply by 59.9996
Step-by-Step
- Start with your value in Gallons per minute (GPM).
- Multiply by 59.9996 to perform the conversion.
- The result is your value expressed in Gallons per hour (GPH).
Conversion Factor
1 GPM = 59.9996 GPH
Reverse Factor
1 GPH = 0.0166668 GPM
Worked Example
Convert 25 Gallons per minute to Gallons per hour: 25 GPM = 1499.99 GPH
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).
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.
Quick Facts
- 1 Gallon per minute equals 59.9996 Gallons per hour
- 1 Gallon per hour equals 0.0166668 Gallons per minute
- Gallon per minute is a unit of volumetric flow rate
- Gallon per hour is a unit of volumetric flow rate
- This conversion is commonly used in plumbing, HVAC systems, and chemical process engineering
- The Gallon per minute belongs to the imperial system
Common Gallon per minute to Gallon per hour Conversions
| Gallons per minute (GPM) | Gallons per hour (GPH) |
|---|---|
| 0.01 | 0.599996 |
| 0.1 | 5.99996 |
| 0.25 | 14.9999 |
| 0.5 | 29.9998 |
| 1 | 59.9996 |
| 2 | 119.999 |
| 3 | 179.999 |
| 5 | 299.998 |
| 10 | 599.996 |
| 15 | 899.994 |
| 20 | 1199.99 |
| 25 | 1499.99 |
| 50 | 2999.98 |
| 75 | 4499.97 |
| 100 | 5999.96 |
| 250 | 14999.9 |
| 500 | 29999.8 |
| 1000 | 59999.6 |
| 5000 | 299998 |
| 10000 | 599996 |
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.
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.
Why Convert Gallons per minute to Gallons per hour?
Converting between Gallons per minute and Gallons per hour 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 minute to Gallons per hour?
A US customary flow-rate unit (US gallons per minute, where 1 US gallon = 3. To convert Gallons per minute to Gallons per hour, multiply by 59.9996. For example, 25 GPM equals 1499.99 GPH.
How many Gallons per hour are in 1 Gallon per minute?
There are 59.9996 Gallons per hour in 1 Gallon per minute.
How many Gallons per minute are in 1 Gallon per hour?
There are 0.0166668 Gallons per minute in 1 Gallon per hour.
What is the formula for Gallon per minute to Gallon per hour conversion?
The formula is: multiply by 59.9996. This means 1 GPM = 59.9996 GPH.
Is a Gallon per minute bigger than a Gallon per hour?
No. One Gallon per minute is smaller than one Gallon per hour because 1 GPM equals 59.9996 GPH, which is greater than 1.
When do you need to convert between Gallons per minute and Gallons per hour?
A US flow-rate unit (US gallons per hour) used for slow, metered, or steady-state low-flow applications. Gallon per minute and Gallon per hour 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.