Volumetric flow rate.
Cubic foot per Seconds to Imperial gallon per Years Converter — ft3/s to imp gal/yr
Convert Cubic foot per Seconds (ft3/s) to Imperial gallon per Years (imp gal/yr) using the exact conversion factor (1 cubic foot per seconds = 196,563,061.6 imperial gallon per years). See the formula, worked examples, conversion table, and common uses.
Cubic foot per Seconds to Imperial gallon per Years converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 0.02831684659 / 1.44059857e-10.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic foot per Seconds to Imperial gallon per Years
Cubic foot per Seconds and Imperial gallon per Years both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Cubic foot per Seconds is most often used for the standard unit used by the us geological survey for reporting river and stream discharge at gauging stations.
Formula
imperial gallon per years = cubic foot per seconds × 196563061.597
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per seconds equals 0.028316846592 base units, and 1 imperial gallon per years equals 1.440599e-10 base units, so dividing one by the other gives the direct cubic foot per seconds-to-imperial gallon per years factor of 196563061.597.
Simple example
1 ft3/s × 196563061.6 = 196,563,061.6 imp gal/yr
1 cubic foot per seconds = 196,563,061.6 imperial gallon per years.
Real-world example
60 ft3/s × 196563061.6 = 11,793,783,700 imp gal/yr
60 cubic foot per seconds = 11,793,783,700 imperial gallon per years.
Conversion table
| Cubic foot per Seconds (ft3/s) | Imperial gallon per Years (imp gal/yr) |
|---|---|
| 0.1 ft3/s | 19,656,306.16 imp gal/yr |
| 1 ft3/s | 196,563,061.6 imp gal/yr |
| 10 ft3/s | 1,965,630,616 imp gal/yr |
| 60 ft3/s | 11,793,783,700 imp gal/yr |
| 100 ft3/s | 19,656,306,160 imp gal/yr |
| 1,000 ft3/s | 196,563,061,600 imp gal/yr |
Reverse conversion: Imperial gallon per Years to Cubic foot per Seconds
1 imp gal/yr × 5.087426e-9 = 5.087426e-9 ft3/s
1 imperial gallon per years = 5.087426e-9 cubic foot per seconds.
cubic foot per seconds = imperial gallon per years × 5.087426e-9
For a page dedicated to this direction, see Imperial gallon per Years to Cubic foot per Seconds.
Understanding the Cubic foot per Seconds
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Where it's used: United States
Uses of the Cubic foot per Seconds today
- The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations
Understanding the Imperial gallon per Years (imp gal/yr)
Volumetric flow rate.
Cubic foot per Seconds — sources
- USGS Water Science School — Cubic feet per second (cfs) is the standard unit USGS uses to report streamflow.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallon per years are in 1 cubic foot per seconds?
1 cubic foot per seconds equals 196,563,061.6 imperial gallon per years, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per seconds to imperial gallon per years?
Multiply the cubic foot per seconds value by 196563061.6. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per years back to cubic foot per seconds?
Use the reverse factor: 1 imperial gallon per years equals 5.087426e-9 cubic foot per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per seconds?
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
What is a imperial gallon per years?
Imperial gallon per Years (imp gal/yr) is a unit of flow rate.
Is the cubic foot per seconds to imperial gallon per years conversion exact?
Yes. Both cubic foot per seconds and imperial gallon per years are defined by fixed standards rather than physical artifacts, so the factor of 196563061.6 used above is exact to as many digits as you choose to display.
Where is the cubic foot per seconds still used today?
United States
What's the difference between volumetric and mass flow rate?
Volumetric flow rate measures the volume of fluid passing a point per unit time (for example, liters per second). Mass flow rate measures the mass instead. For a fluid of constant density the two are directly proportional, but for compressible fluids like gases, mass flow is often the more meaningful quantity.