Volumetric flow rate.
Cubic foot per Seconds to Imperial quarts per Millisecond Converter — ft3/s to imp qt/ms
Convert Cubic foot per Seconds (ft3/s) to Imperial quart per Millisecond (imp qt/ms) using the exact conversion factor (1 cubic foot per seconds = 0.0249153418 imperial quart per millisecond). See the formula, worked examples, conversion table, and common uses.
Cubic foot per Seconds to Imperial quarts per Millisecond 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 / 1.1365225.
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 Imperial quarts per Millisecond
Cubic foot per Seconds and Imperial quart per Millisecond 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
imperial quarts per millisecond = cubic foot per seconds × 0.0249153418362
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 imperial quart per millisecond equals 1.1365225 base units, so dividing one by the other gives the direct cubic foot per seconds-to-imperial quart per millisecond factor of 0.0249153418362.
Simple example
1 ft3/s × 0.02491534184 = 0.0249153418 imp qt/ms
1 cubic foot per seconds = 0.0249153418 imperial quarts per millisecond.
Real-world example
60 ft3/s × 0.02491534184 = 1.49492051 imp qt/ms
60 cubic foot per seconds = 1.49492051 imperial quarts per millisecond.
Conversion table
| Cubic foot per Seconds (ft3/s) | Imperial quart per Millisecond (imp qt/ms) |
|---|---|
| 0.1 ft3/s | 0.0024915342 imp qt/ms |
| 1 ft3/s | 0.0249153418 imp qt/ms |
| 10 ft3/s | 0.2491534184 imp qt/ms |
| 60 ft3/s | 1.49492051 imp qt/ms |
| 100 ft3/s | 2.491534184 imp qt/ms |
| 1,000 ft3/s | 24.91534184 imp qt/ms |
Reverse conversion: Imperial quart per Millisecond to Cubic foot per Seconds
0.0249153418 imp qt/ms × 40.13591331 = 0.9999999985 ft3/s
0.0249153418 imperial quarts per millisecond = 0.9999999985 cubic foot per seconds.
cubic foot per seconds = imperial quarts per millisecond × 40.135913309
For a page dedicated to this direction, see Imperial quart per Millisecond 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 Imperial quart per Millisecond (imp qt/ms)
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 imperial quarts per millisecond are in 1 cubic foot per seconds?
1 cubic foot per seconds equals 0.0249153418 imperial quarts per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per seconds to imperial quart per millisecond?
Multiply the cubic foot per seconds value by 0.02491534184. The converter above does this instantly to whatever precision you set.
How do I convert imperial quart per millisecond back to cubic foot per seconds?
Use the reverse factor: 1 imperial quart per millisecond equals 40.13591331 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 imperial quart per millisecond?
Imperial quart per Millisecond (imp qt/ms) is a unit of flow rate.
Is the cubic foot per seconds to imperial quart per millisecond conversion exact?
Yes. Both cubic foot per seconds and imperial quart per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 0.02491534184 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.