Volumetric flow rate.
Cubic foot per Seconds to Quart per Seconds Converter — ft3/s to qt/s
Convert Cubic foot per Seconds (ft3/s) to Quart per Seconds (qt/s) using the exact conversion factor (1 cubic foot per seconds = 29.92207792 quart per seconds). See the formula, worked examples, conversion table, and common uses.
Cubic foot 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 0.02831684659 / 0.000946352946.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic foot per Seconds to Quart per Seconds
Cubic foot 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. Cubic foot per Seconds is most often used for the standard unit used by the us geological survey for reporting river and stream discharge at gauging stations.
Formula
quart per seconds = cubic foot per seconds × 29.9220779221
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per seconds equals 0.028316846592 base units, and 1 quart per seconds equals 0.000946352946 base units, so dividing one by the other gives the direct cubic foot per seconds-to-quart per seconds factor of 29.9220779221.
Simple example
1 ft3/s × 29.92207792 = 29.92207792 qt/s
1 cubic foot per seconds = 29.92207792 quart per seconds.
Real-world example
60 ft3/s × 29.92207792 = 1,795.324675 qt/s
60 cubic foot per seconds = 1,795.324675 quart per seconds.
Conversion table
| Cubic foot per Seconds (ft3/s) | Quart per Seconds (qt/s) |
|---|---|
| 0.1 ft3/s | 2.992207792 qt/s |
| 1 ft3/s | 29.92207792 qt/s |
| 10 ft3/s | 299.2207792 qt/s |
| 60 ft3/s | 1,795.324675 qt/s |
| 100 ft3/s | 2,992.207792 qt/s |
| 1,000 ft3/s | 29,922.07792 qt/s |
Reverse conversion: Quart per Seconds to Cubic foot per Seconds
29.92207792 qt/s × 0.03342013889 = 0.9999999999 ft3/s
29.92207792 quart per seconds = 0.9999999999 cubic foot per seconds.
cubic foot per seconds = quart per seconds × 0.0334201388889
For a page dedicated to this direction, see Quart per Seconds to Cubic foot per Seconds.
Understanding the Cubic foot per Seconds
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Where it's used: United States
Uses of the Cubic foot per Seconds today
- The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations
Understanding the Quart per Seconds (qt/s)
Volumetric flow rate.
Cubic foot per Seconds — sources
- USGS Water Science School — Cubic feet per second (cfs) is the standard unit USGS uses to report streamflow.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many quart per seconds are in 1 cubic foot per seconds?
1 cubic foot per seconds equals 29.92207792 quart per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per seconds to quart per seconds?
Multiply the cubic foot per seconds value by 29.92207792. The converter above does this instantly to whatever precision you set.
How do I convert quart per seconds back to cubic foot per seconds?
Use the reverse factor: 1 quart per seconds equals 0.0334201389 cubic foot per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per seconds?
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
What is a quart per seconds?
Quart per Seconds (qt/s) is a unit of flow rate.
Is the cubic foot per seconds to quart per seconds conversion exact?
Yes. Both cubic foot per seconds and quart per seconds are defined by fixed standards rather than physical artifacts, so the factor of 29.92207792 used above is exact to as many digits as you choose to display.
Where is the cubic foot per seconds still used today?
United States
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.