Volumetric flow rate.
Cubic yard per Seconds to Imperial gallon per Seconds Converter — yd3/s to imp gal/s
Convert Cubic yard per Seconds (yd3/s) to Imperial gallon per Seconds (imp gal/s) using the exact conversion factor (1 cubic yard per seconds = 168.1785574 imperial gallon per seconds). See the formula, worked examples, and conversion table.
Cubic yard per Seconds to Imperial gallon per Seconds 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 0.764554858 / 0.00454609.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic yard per Seconds to Imperial gallon per Seconds
Cubic yard per Seconds and Imperial gallon per Seconds 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
imperial gallon per seconds = cubic yard per seconds × 168.178557394
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic yard per seconds equals 0.764554857984 base units, and 1 imperial gallon per seconds equals 0.00454609 base units, so dividing one by the other gives the direct cubic yard per seconds-to-imperial gallon per seconds factor of 168.178557394.
Simple example
1 yd3/s × 168.1785574 = 168.1785574 imp gal/s
1 cubic yard per seconds = 168.1785574 imperial gallon per seconds.
Real-world example
60 yd3/s × 168.1785574 = 10,090.71344 imp gal/s
60 cubic yard per seconds = 10,090.71344 imperial gallon per seconds.
Conversion table
| Cubic yard per Seconds (yd3/s) | Imperial gallon per Seconds (imp gal/s) |
|---|---|
| 0.1 yd3/s | 16.81785574 imp gal/s |
| 1 yd3/s | 168.1785574 imp gal/s |
| 10 yd3/s | 1,681.785574 imp gal/s |
| 60 yd3/s | 10,090.71344 imp gal/s |
| 100 yd3/s | 16,817.85574 imp gal/s |
| 1,000 yd3/s | 168,178.5574 imp gal/s |
Reverse conversion: Imperial gallon per Seconds to Cubic yard per Seconds
168.1785574 imp gal/s × 0.005946061231 = 1 yd3/s
168.1785574 imperial gallon per seconds = 1 cubic yard per seconds.
cubic yard per seconds = imperial gallon per seconds × 0.00594606123096
For a page dedicated to this direction, see Imperial gallon per Seconds to Cubic yard per Seconds.
Understanding the Cubic yard per Seconds (yd3/s)
Volumetric flow rate.
Understanding the Imperial gallon per Seconds (imp gal/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallon per seconds are in 1 cubic yard per seconds?
1 cubic yard per seconds equals 168.1785574 imperial gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic yard per seconds to imperial gallon per seconds?
Multiply the cubic yard per seconds value by 168.1785574. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per seconds back to cubic yard per seconds?
Use the reverse factor: 1 imperial gallon per seconds equals 0.0059460612 cubic yard per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic yard per seconds?
Cubic yard per Seconds (yd3/s) is a unit of flow rate.
What is a imperial gallon per seconds?
Imperial gallon per Seconds (imp gal/s) is a unit of flow rate.
Is the cubic yard per seconds to imperial gallon per seconds conversion exact?
Yes. Both cubic yard per seconds and imperial gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 168.1785574 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.