Volumetric flow rate.
Imperial gallon per Seconds to Cubic yard per Hours Converter — imp gal/s to yd3/h
Convert Imperial gallon per Seconds (imp gal/s) to Cubic yard per Hours (yd3/h) using the exact conversion factor (1 imperial gallon per seconds = 21.40582043 cubic yard per hours). See the formula, worked examples, and conversion table.
Imperial gallon per Seconds to Cubic yard per Hours 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 0.00454609 / 0.0002123763494.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial gallon per Seconds to Cubic yard per Hours
Imperial gallon per Seconds and Cubic yard per Hours 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. Both are volumetric flow rate units.
Formula
cubic yard per hours = imperial gallon per seconds × 21.4058204315
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial gallon per seconds equals 0.00454609 base units, and 1 cubic yard per hours equals 0.00021237634944 base units, so dividing one by the other gives the direct imperial gallon per seconds-to-cubic yard per hours factor of 21.4058204315.
Simple example
1 imp gal/s × 21.40582043 = 21.40582043 yd3/h
1 imperial gallon per seconds = 21.40582043 cubic yard per hours.
Real-world example
60 imp gal/s × 21.40582043 = 1,284.349226 yd3/h
60 imperial gallon per seconds = 1,284.349226 cubic yard per hours.
Conversion table
| Imperial gallon per Seconds (imp gal/s) | Cubic yard per Hours (yd3/h) |
|---|---|
| 0.1 imp gal/s | 2.140582043 yd3/h |
| 1 imp gal/s | 21.40582043 yd3/h |
| 10 imp gal/s | 214.0582043 yd3/h |
| 60 imp gal/s | 1,284.349226 yd3/h |
| 100 imp gal/s | 2,140.582043 yd3/h |
| 1,000 imp gal/s | 21,405.82043 yd3/h |
Reverse conversion: Cubic yard per Hours to Imperial gallon per Seconds
21.40582043 yd3/h × 0.04671626594 = 0.9999999999 imp gal/s
21.40582043 cubic yard per hours = 0.9999999999 imperial gallon per seconds.
imperial gallon per seconds = cubic yard per hours × 0.0467162659428
For a page dedicated to this direction, see Cubic yard per Hours to Imperial gallon per Seconds.
Understanding the Imperial gallon per Seconds (imp gal/s)
Volumetric flow rate.
Understanding the Cubic yard per Hours (yd3/h)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic yard per hours are in 1 imperial gallon per seconds?
1 imperial gallon per seconds equals 21.40582043 cubic yard per hours, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per seconds to cubic yard per hours?
Multiply the imperial gallon per seconds value by 21.40582043. The converter above does this instantly to whatever precision you set.
How do I convert cubic yard per hours back to imperial gallon per seconds?
Use the reverse factor: 1 cubic yard per hours equals 0.0467162659 imperial gallon per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial gallon per seconds?
Imperial gallon per Seconds (imp gal/s) is a unit of flow rate.
What is a cubic yard per hours?
Cubic yard per Hours (yd3/h) is a unit of flow rate.
Is the imperial gallon per seconds to cubic yard per hours conversion exact?
Yes. Both imperial gallon per seconds and cubic yard per hours are defined by fixed standards rather than physical artifacts, so the factor of 21.40582043 used above is exact to as many digits as you choose to display.
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.