Volumetric flow rate.
Gallon per Seconds to Cubic Meter per Days Converter — gal/s to m3/d
Convert Gallon per Seconds (gal/s) to Cubic Meter per Days (m3/d) using the exact conversion factor (1 gallon per seconds = 327.0595781 cubic meter per days). See the formula, worked examples, and conversion table.
Gallon per Seconds to Cubic Meter 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 / 1.15740741e-5.
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 Meter per Days
Gallon per Seconds and Cubic Meter 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 meter per days = gallon per seconds × 327.059578138
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 meter per days equals 0.0000115740740741 base units, so dividing one by the other gives the direct gallon per seconds-to-cubic meter per days factor of 327.059578138.
Simple example
1 gal/s × 327.0595781 = 327.0595781 m3/d
1 gallon per seconds = 327.0595781 cubic meter per days.
Real-world example
60 gal/s × 327.0595781 = 19,623.57469 m3/d
60 gallon per seconds = 19,623.57469 cubic meter per days.
Conversion table
| Gallon per Seconds (gal/s) | Cubic Meter per Days (m3/d) |
|---|---|
| 0.1 gal/s | 32.70595781 m3/d |
| 1 gal/s | 327.0595781 m3/d |
| 10 gal/s | 3,270.595781 m3/d |
| 60 gal/s | 19,623.57469 m3/d |
| 100 gal/s | 32,705.95781 m3/d |
| 1,000 gal/s | 327,059.5781 m3/d |
Reverse conversion: Cubic Meter per Days to Gallon per Seconds
327.0595781 m3/d × 0.003057546902 = 0.9999999999 gal/s
327.0595781 cubic meter per days = 0.9999999999 gallon per seconds.
gallon per seconds = cubic meter per days × 0.00305754690229
For a page dedicated to this direction, see Cubic Meter per Days to Gallon per Seconds.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Understanding the Cubic Meter per Days (m3/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic meter per days are in 1 gallon per seconds?
1 gallon per seconds equals 327.0595781 cubic meter per days, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per seconds to cubic meter per days?
Multiply the gallon per seconds value by 327.0595781. The converter above does this instantly to whatever precision you set.
How do I convert cubic meter per days back to gallon per seconds?
Use the reverse factor: 1 cubic meter per days equals 0.0030575469 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 meter per days?
Cubic Meter per Days (m3/d) is a unit of flow rate.
Is the gallon per seconds to cubic meter per days conversion exact?
Yes. Both gallon per seconds and cubic meter per days are defined by fixed standards rather than physical artifacts, so the factor of 327.0595781 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.