Volumetric flow rate.
Gallon per Seconds to Cubic yard per Days Converter — gal/s to yd3/d
Convert Gallon per Seconds (gal/s) to Cubic yard per Days (yd3/d) using the exact conversion factor (1 gallon per seconds = 427.7777778 cubic yard per days). See the formula, worked examples, and conversion table.
Gallon per Seconds to Cubic yard per Days 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 / 8.84901456e-6.
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 Days
Gallon per Seconds and Cubic yard per Days 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 days = gallon per seconds × 427.777777778
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 days equals 0.00000884901456 base units, so dividing one by the other gives the direct gallon per seconds-to-cubic yard per days factor of 427.777777778.
Simple example
1 gal/s × 427.7777778 = 427.7777778 yd3/d
1 gallon per seconds = 427.7777778 cubic yard per days.
Real-world example
60 gal/s × 427.7777778 = 25,666.66667 yd3/d
60 gallon per seconds = 25,666.66667 cubic yard per days.
Conversion table
| Gallon per Seconds (gal/s) | Cubic yard per Days (yd3/d) |
|---|---|
| 0.1 gal/s | 42.77777778 yd3/d |
| 1 gal/s | 427.7777778 yd3/d |
| 10 gal/s | 4,277.777778 yd3/d |
| 60 gal/s | 25,666.66667 yd3/d |
| 100 gal/s | 42,777.77778 yd3/d |
| 1,000 gal/s | 427,777.7778 yd3/d |
Reverse conversion: Cubic yard per Days to Gallon per Seconds
427.7777778 yd3/d × 0.002337662338 = 1 gal/s
427.7777778 cubic yard per days = 1 gallon per seconds.
gallon per seconds = cubic yard per days × 0.00233766233766
For a page dedicated to this direction, see Cubic yard per Days to Gallon per Seconds.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Understanding the Cubic yard per Days (yd3/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic yard per days are in 1 gallon per seconds?
1 gallon per seconds equals 427.7777778 cubic yard per days, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per seconds to cubic yard per days?
Multiply the gallon per seconds value by 427.7777778. The converter above does this instantly to whatever precision you set.
How do I convert cubic yard per days back to gallon per seconds?
Use the reverse factor: 1 cubic yard per days equals 0.0023376623 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 days?
Cubic yard per Days (yd3/d) is a unit of flow rate.
Is the gallon per seconds to cubic yard per days conversion exact?
Yes. Both gallon per seconds and cubic yard per days are defined by fixed standards rather than physical artifacts, so the factor of 427.7777778 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.