Volumetric flow rate.
Gallon per Seconds to Quart per Seconds Converter — gal/s to qt/s
Convert Gallon per Seconds (gal/s) to Quart per Seconds (qt/s) using the exact conversion factor (1 gallon per seconds = 4 quart per seconds). See the formula, worked examples, and conversion table.
Gallon per Seconds to Quart 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 / 0.000946352946.
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 Quart per Seconds
Gallon per Seconds and Quart 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
quart per seconds = gallon per seconds × 4
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 quart per seconds equals 0.000946352946 base units, so dividing one by the other gives the direct gallon per seconds-to-quart per seconds factor of 4.
Simple example
1 gal/s × 4 = 4 qt/s
1 gallon per seconds = 4 quart per seconds.
Real-world example
60 gal/s × 4 = 240 qt/s
60 gallon per seconds = 240 quart per seconds.
Conversion table
| Gallon per Seconds (gal/s) | Quart per Seconds (qt/s) |
|---|---|
| 0.1 gal/s | 0.4 qt/s |
| 1 gal/s | 4 qt/s |
| 10 gal/s | 40 qt/s |
| 60 gal/s | 240 qt/s |
| 100 gal/s | 400 qt/s |
| 1,000 gal/s | 4,000 qt/s |
Reverse conversion: Quart per Seconds to Gallon per Seconds
4 qt/s × 0.25 = 1 gal/s
4 quart per seconds = 1 gallon per seconds.
gallon per seconds = quart per seconds × 0.25
For a page dedicated to this direction, see Quart per Seconds to Gallon per Seconds.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Understanding the Quart per Seconds (qt/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many quart per seconds are in 1 gallon per seconds?
1 gallon per seconds equals 4 quart per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per seconds to quart per seconds?
Multiply the gallon per seconds value by 4. The converter above does this instantly to whatever precision you set.
How do I convert quart per seconds back to gallon per seconds?
Use the reverse factor: 1 quart per seconds equals 0.25 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 quart per seconds?
Quart per Seconds (qt/s) is a unit of flow rate.
Is the gallon per seconds to quart per seconds conversion exact?
Yes. Both gallon per seconds and quart per seconds are defined by fixed standards rather than physical artifacts, so the factor of 4 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.