Volumetric flow rate.
Gallon per Seconds to Cubic yard per Seconds Converter — gal/s to yd3/s
Convert Gallon per Seconds (gal/s) to Cubic yard per Seconds (yd3/s) using the exact conversion factor (1 gallon per seconds = 0.0049511317 cubic yard per seconds). See the formula, worked examples, and conversion table.
Gallon per Seconds to Cubic yard 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 0.003785411784 / 0.764554858.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Seconds to Cubic yard per Seconds
Gallon per Seconds and Cubic yard 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
cubic yard per seconds = gallon per seconds × 0.00495113168724
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per seconds equals 0.003785411784 base units, and 1 cubic yard per seconds equals 0.764554857984 base units, so dividing one by the other gives the direct gallon per seconds-to-cubic yard per seconds factor of 0.00495113168724.
Simple example
1 gal/s × 0.004951131687 = 0.0049511317 yd3/s
1 gallon per seconds = 0.0049511317 cubic yard per seconds.
Real-world example
60 gal/s × 0.004951131687 = 0.2970679012 yd3/s
60 gallon per seconds = 0.2970679012 cubic yard per seconds.
Conversion table
| Gallon per Seconds (gal/s) | Cubic yard per Seconds (yd3/s) |
|---|---|
| 0.1 gal/s | 0.0004951132 yd3/s |
| 1 gal/s | 0.0049511317 yd3/s |
| 10 gal/s | 0.0495113169 yd3/s |
| 60 gal/s | 0.2970679012 yd3/s |
| 100 gal/s | 0.4951131687 yd3/s |
| 1,000 gal/s | 4.951131687 yd3/s |
Reverse conversion: Cubic yard per Seconds to Gallon per Seconds
0.0049511317 yd3/s × 201.974026 = 1.000000003 gal/s
0.0049511317 cubic yard per seconds = 1.000000003 gallon per seconds.
gallon per seconds = cubic yard per seconds × 201.974025974
For a page dedicated to this direction, see Cubic yard per Seconds to Gallon per Seconds.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Understanding the Cubic yard per Seconds (yd3/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic yard per seconds are in 1 gallon per seconds?
1 gallon per seconds equals 0.0049511317 cubic yard per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per seconds to cubic yard per seconds?
Multiply the gallon per seconds value by 0.004951131687. The converter above does this instantly to whatever precision you set.
How do I convert cubic yard per seconds back to gallon per seconds?
Use the reverse factor: 1 cubic yard per seconds equals 201.974026 gallon per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
What is a cubic yard per seconds?
Cubic yard per Seconds (yd3/s) is a unit of flow rate.
Is the gallon per seconds to cubic yard per seconds conversion exact?
Yes. Both gallon per seconds and cubic yard per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.004951131687 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.