Convert Cubic feet per second to Gallons per hour
Instantly convert Cubic feet per second (ft³/s) to Gallons per hour (GPH) with our free online calculator.
Formula: ft³/s to GPH — multiply by 26929.7
Reference Table
| Cubic feet per second (ft³/s) | Gallons per hour (GPH) |
|---|---|
| 1 | 26929.7 |
| 5 | 134648 |
| 10 | 269297 |
| 25 | 673241 |
| 50 | 1346480 |
| 100 | 2692970 |
How to Convert Cubic feet per second to Gallons per hour
Formula
To convert Cubic feet per second (ft³/s) to Gallons per hour (GPH): multiply by 26929.7
Step-by-Step
- Start with your value in Cubic feet per second (ft³/s).
- Multiply by 26929.7 to perform the conversion.
- The result is your value expressed in Gallons per hour (GPH).
Conversion Factor
1 ft³/s = 26929.7 GPH
Reverse Factor
1 GPH = 0.0000371338 ft³/s
Worked Example
Convert 25 Cubic feet per second to Gallons per hour: 25 ft³/s = 673241 GPH
About Cubic foot per second (ft³/s)
An imperial flow-rate unit used in US hydrology, river discharge measurement, and large-scale water-supply engineering. Also called "cusec" in water-resources jargon. Typical US river flow-rate reports (USGS streamgages) use cfs. A rainstorm runoff event in a small watershed might reach 100–500 cfs. 1 ft³/s = 7.48 gallons/second ≈ 28.3 L/s.
About Gallon per hour (GPH)
A US flow-rate unit for slow/metered flows. Used on aquarium pumps, water-feature recirculators, irrigation drip emitters, oil burners, fuel-dispensing meters, and some industrial dosing equipment. Boat fuel-flow meters also report fuel consumption in GPH, a useful figure for cruising range calculations.
Quick Facts
- 1 Cubic foot per second equals 26929.7 Gallons per hour
- 1 Gallon per hour equals 0.0000371338 Cubic feet per second
- Cubic foot per second 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 Cubic foot per second belongs to the imperial system
Common Cubic foot per second to Gallon per hour Conversions
| Cubic feet per second (ft³/s) | Gallons per hour (GPH) |
|---|---|
| 0.01 | 269.297 |
| 0.1 | 2692.97 |
| 0.25 | 6732.41 |
| 0.5 | 13464.8 |
| 1 | 26929.7 |
| 2 | 53859.3 |
| 3 | 80789 |
| 5 | 134648 |
| 10 | 269297 |
| 15 | 403945 |
| 20 | 538593 |
| 25 | 673241 |
| 50 | 1346480 |
| 75 | 2019720 |
| 100 | 2692970 |
| 250 | 6732410 |
| 500 | 13464800 |
| 1000 | 26929700 |
| 5000 | 134648000 |
| 10000 | 269297000 |
Understanding Cubic feet per second
The Cubic foot per second (symbol: ft³/s) is a unit of volumetric flow rate. An imperial flow-rate unit used in US hydrology, river discharge measurement, and large-scale water-supply engineering. Also called "cusec" in water-resources jargon. Typical US river flow-rate reports (USGS streamgages) use cfs. A rainstorm runoff event in a small watershed might reach 100–500 cfs. 1 ft³/s = 7.48 gallons/second ≈ 28.3 L/s.
It belongs to the imperial measurement system.
Cubic feet per second 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 for slow/metered flows. Used on aquarium pumps, water-feature recirculators, irrigation drip emitters, oil burners, fuel-dispensing meters, and some industrial dosing equipment. Boat fuel-flow meters also report fuel consumption in GPH, a useful figure for cruising range calculations.
It belongs to the imperial measurement system.
Gallons per hour are commonly used in plumbing, HVAC systems, and chemical process engineering.
Why Convert Cubic feet per second to Gallons per hour?
Converting between Cubic feet per second 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 Cubic feet per second to Gallons per hour?
An imperial flow-rate unit used in US hydrology, river discharge measurement, and large-scale water-supply engineering. To convert Cubic feet per second to Gallons per hour, multiply by 26929.7. For example, 25 ft³/s equals 673241 GPH.
How many Gallons per hour are in 1 Cubic foot per second?
There are 26929.7 Gallons per hour in 1 Cubic foot per second.
How many Cubic feet per second are in 1 Gallon per hour?
There are 0.0000371338 Cubic feet per second in 1 Gallon per hour.
What is the formula for Cubic foot per second to Gallon per hour conversion?
The formula is: multiply by 26929.7. This means 1 ft³/s = 26929.7 GPH.
Is a Cubic foot per second bigger than a Gallon per hour?
No. One Cubic foot per second is smaller than one Gallon per hour because 1 ft³/s equals 26929.7 GPH, which is greater than 1.
When do you need to convert between Cubic feet per second and Gallons per hour?
A US flow-rate unit for slow/metered flows. Cubic foot per second 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.