Volumetric flow rate.
Cup per Days to Quarts per Millisecond Converter — cup/d to qt/ms
Convert Cup per Days (cup/d) to Quart per Millisecond (qt/ms) using the exact conversion factor (1 cup per days = 2.893519e-9 quart per millisecond). See the formula, worked examples, and conversion table.
Cup per Days to 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 2.73828977e-9 / 0.946352946.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cup per Days to Quarts per Millisecond
Cup per Days and 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. Both are volumetric flow rate units.
Formula
quarts per millisecond = cup per days × 2.893519e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 cup per days equals 2.73829e-9 base units, and 1 quart per millisecond equals 0.946352946 base units, so dividing one by the other gives the direct cup per days-to-quart per millisecond factor of 2.893519e-9.
Simple example
1 cup/d × 2.893519e-9 = 2.893519e-9 qt/ms
1 cup per days = 2.893519e-9 quarts per millisecond.
Real-world example
60 cup/d × 2.893519e-9 = 1.736111e-7 qt/ms
60 cup per days = 1.736111e-7 quarts per millisecond.
Conversion table
| Cup per Days (cup/d) | Quart per Millisecond (qt/ms) |
|---|---|
| 0.1 cup/d | 2.893519e-10 qt/ms |
| 1 cup/d | 2.893519e-9 qt/ms |
| 10 cup/d | 2.893519e-8 qt/ms |
| 60 cup/d | 1.736111e-7 qt/ms |
| 100 cup/d | 2.893519e-7 qt/ms |
| 1,000 cup/d | 0.0000028935 qt/ms |
Reverse conversion: Quart per Millisecond to Cup per Days
2.893519e-9 qt/ms × 345600000 = 1.000000166 cup/d
2.893519e-9 quarts per millisecond = 1.000000166 cup per days.
cup per days = quarts per millisecond × 345600000
For a page dedicated to this direction, see Quart per Millisecond to Cup per Days.
Understanding the Cup per Days (cup/d)
Volumetric flow rate.
Understanding the Quart per Millisecond (qt/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many quarts per millisecond are in 1 cup per days?
1 cup per days equals 2.893519e-9 quarts per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert cup per days to quart per millisecond?
Multiply the cup per days value by 2.893519e-9. The converter above does this instantly to whatever precision you set.
How do I convert quart per millisecond back to cup per days?
Use the reverse factor: 1 quart per millisecond equals 345,600,000 cup per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cup per days?
Cup per Days (cup/d) is a unit of flow rate.
What is a quart per millisecond?
Quart per Millisecond (qt/ms) is a unit of flow rate.
Is the cup per days to quart per millisecond conversion exact?
Yes. Both cup per days and quart per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 2.893519e-9 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.