Volumetric flow rate.
Gallons per Millisecond to Cubic yard per Seconds Converter — gal/ms to yd3/s
Convert Gallon per Millisecond (gal/ms) to Cubic yard per Seconds (yd3/s) using the exact conversion factor (1 gallon per millisecond = 4.951131687 cubic yard per seconds). See the formula, worked examples, and conversion table.
Gallons per Millisecond 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 3.785411784 / 0.764554858.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallons per Millisecond to Cubic yard per Seconds
Gallon per Millisecond 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 = gallons per millisecond × 4.95113168724
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per millisecond equals 3.785411784 base units, and 1 cubic yard per seconds equals 0.764554857984 base units, so dividing one by the other gives the direct gallon per millisecond-to-cubic yard per seconds factor of 4.95113168724.
Simple example
1 gal/ms × 4.951131687 = 4.951131687 yd3/s
1 gallon per millisecond = 4.951131687 cubic yard per seconds.
Real-world example
60 gal/ms × 4.951131687 = 297.0679012 yd3/s
60 gallons per millisecond = 297.0679012 cubic yard per seconds.
Conversion table
| Gallon per Millisecond (gal/ms) | Cubic yard per Seconds (yd3/s) |
|---|---|
| 0.1 gal/ms | 0.4951131687 yd3/s |
| 1 gal/ms | 4.951131687 yd3/s |
| 10 gal/ms | 49.51131687 yd3/s |
| 60 gal/ms | 297.0679012 yd3/s |
| 100 gal/ms | 495.1131687 yd3/s |
| 1,000 gal/ms | 4,951.131687 yd3/s |
Reverse conversion: Cubic yard per Seconds to Gallon per Millisecond
4.951131687 yd3/s × 0.201974026 = 1 gal/ms
4.951131687 cubic yard per seconds = 1 gallons per millisecond.
gallons per millisecond = cubic yard per seconds × 0.201974025974
For a page dedicated to this direction, see Cubic yard per Seconds to Gallon per Millisecond.
Understanding the Gallon per Millisecond (gal/ms)
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 millisecond?
1 gallon per millisecond equals 4.951131687 cubic yard per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per millisecond to cubic yard per seconds?
Multiply the gallon per millisecond value by 4.951131687. The converter above does this instantly to whatever precision you set.
How do I convert cubic yard per seconds back to gallon per millisecond?
Use the reverse factor: 1 cubic yard per seconds equals 0.201974026 gallons per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per millisecond?
Gallon per Millisecond (gal/ms) 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 millisecond to cubic yard per seconds conversion exact?
Yes. Both gallon per millisecond and cubic yard per seconds are defined by fixed standards rather than physical artifacts, so the factor of 4.951131687 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.