Volumetric flow rate.
Quarts per Millisecond to Cups per Millisecond Converter — qt/ms to cup/ms
Convert Quart per Millisecond (qt/ms) to Cup per Millisecond (cup/ms) using the exact conversion factor (1 quart per millisecond = 4 cup per millisecond). See the formula, worked examples, and conversion table.
Quarts per Millisecond to Cups 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 0.946352946 / 0.2365882365.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quarts per Millisecond to Cups per Millisecond
Quart per Millisecond and Cup 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. Both are volumetric flow rate units.
Formula
cups per millisecond = quarts per millisecond × 4
This factor comes from each unit's defined relationship to the category's base unit: 1 quart per millisecond equals 0.946352946 base units, and 1 cup per millisecond equals 0.2365882365 base units, so dividing one by the other gives the direct quart per millisecond-to-cup per millisecond factor of 4.
Simple example
1 qt/ms × 4 = 4 cup/ms
1 quart per millisecond = 4 cups per millisecond.
Real-world example
60 qt/ms × 4 = 240 cup/ms
60 quarts per millisecond = 240 cups per millisecond.
Conversion table
| Quart per Millisecond (qt/ms) | Cup per Millisecond (cup/ms) |
|---|---|
| 0.1 qt/ms | 0.4 cup/ms |
| 1 qt/ms | 4 cup/ms |
| 10 qt/ms | 40 cup/ms |
| 60 qt/ms | 240 cup/ms |
| 100 qt/ms | 400 cup/ms |
| 1,000 qt/ms | 4,000 cup/ms |
Reverse conversion: Cup per Millisecond to Quart per Millisecond
4 cup/ms × 0.25 = 1 qt/ms
4 cups per millisecond = 1 quart per millisecond.
quarts per millisecond = cups per millisecond × 0.25
For a page dedicated to this direction, see Cup per Millisecond to Quart per Millisecond.
Understanding the Quart per Millisecond (qt/ms)
Volumetric flow rate.
Understanding the Cup per Millisecond (cup/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cups per millisecond are in 1 quart per millisecond?
1 quart per millisecond equals 4 cups per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert quart per millisecond to cup per millisecond?
Multiply the quart per millisecond value by 4. The converter above does this instantly to whatever precision you set.
How do I convert cup per millisecond back to quart per millisecond?
Use the reverse factor: 1 cup per millisecond equals 0.25 quarts per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a quart per millisecond?
Quart per Millisecond (qt/ms) is a unit of flow rate.
What is a cup per millisecond?
Cup per Millisecond (cup/ms) is a unit of flow rate.
Is the quart per millisecond to cup per millisecond conversion exact?
Yes. Both quart per millisecond and cup per millisecond 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.