Volumetric flow rate.
Quart per Days to Pints per Millisecond Converter — qt/d to pt/ms
Convert Quart per Days (qt/d) to Pint per Millisecond (pt/ms) using the exact conversion factor (1 quart per days = 2.314815e-8 pint per millisecond). See the formula, worked examples, and conversion table.
Quart per Days to Pints 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 1.09531591e-8 / 0.473176473.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quart per Days to Pints per Millisecond
Quart per Days and Pint 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
pints per millisecond = quart per days × 2.314815e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 quart per days equals 1.095316e-8 base units, and 1 pint per millisecond equals 0.473176473 base units, so dividing one by the other gives the direct quart per days-to-pint per millisecond factor of 2.314815e-8.
Simple example
1 qt/d × 2.314815e-8 = 2.314815e-8 pt/ms
1 quart per days = 2.314815e-8 pints per millisecond.
Real-world example
60 qt/d × 2.314815e-8 = 0.0000013889 pt/ms
60 quart per days = 0.0000013889 pints per millisecond.
Conversion table
| Quart per Days (qt/d) | Pint per Millisecond (pt/ms) |
|---|---|
| 0.1 qt/d | 2.314815e-9 pt/ms |
| 1 qt/d | 2.314815e-8 pt/ms |
| 10 qt/d | 2.314815e-7 pt/ms |
| 60 qt/d | 0.0000013889 pt/ms |
| 100 qt/d | 0.0000023148 pt/ms |
| 1,000 qt/d | 0.0000231481 pt/ms |
Reverse conversion: Pint per Millisecond to Quart per Days
2.314815e-8 pt/ms × 43200000 = 1.00000008 qt/d
2.314815e-8 pints per millisecond = 1.00000008 quart per days.
quart per days = pints per millisecond × 43200000
For a page dedicated to this direction, see Pint per Millisecond to Quart per Days.
Understanding the Quart per Days (qt/d)
Volumetric flow rate.
Understanding the Pint per Millisecond (pt/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pints per millisecond are in 1 quart per days?
1 quart per days equals 2.314815e-8 pints per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert quart per days to pint per millisecond?
Multiply the quart per days value by 2.314815e-8. The converter above does this instantly to whatever precision you set.
How do I convert pint per millisecond back to quart per days?
Use the reverse factor: 1 pint per millisecond equals 43,200,000 quart per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a quart per days?
Quart per Days (qt/d) is a unit of flow rate.
What is a pint per millisecond?
Pint per Millisecond (pt/ms) is a unit of flow rate.
Is the quart per days to pint per millisecond conversion exact?
Yes. Both quart per days and pint per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 2.314815e-8 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.