Volumetric flow rate.
Imperial pint per Days to Pints per Millisecond Converter — imp pt/d to pt/ms
Convert Imperial pint per Days (imp pt/d) to Pint per Millisecond (pt/ms) using the exact conversion factor (1 imperial pint per days = 1.389988e-8 pint per millisecond). See the formula, worked examples, and conversion table.
Imperial pint 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 6.5770978e-9 / 0.473176473.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial pint per Days to Pints per Millisecond
Imperial pint 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 = imperial pint per days × 1.389988e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial pint per days equals 6.577098e-9 base units, and 1 pint per millisecond equals 0.473176473 base units, so dividing one by the other gives the direct imperial pint per days-to-pint per millisecond factor of 1.389988e-8.
Simple example
1 imp pt/d × 1.389988e-8 = 1.389988e-8 pt/ms
1 imperial pint per days = 1.389988e-8 pints per millisecond.
Real-world example
60 imp pt/d × 1.389988e-8 = 8.33993e-7 pt/ms
60 imperial pint per days = 8.33993e-7 pints per millisecond.
Conversion table
| Imperial pint per Days (imp pt/d) | Pint per Millisecond (pt/ms) |
|---|---|
| 0.1 imp pt/d | 1.389988e-9 pt/ms |
| 1 imp pt/d | 1.389988e-8 pt/ms |
| 10 imp pt/d | 1.389988e-7 pt/ms |
| 60 imp pt/d | 8.33993e-7 pt/ms |
| 100 imp pt/d | 0.00000139 pt/ms |
| 1,000 imp pt/d | 0.0000138999 pt/ms |
Reverse conversion: Pint per Millisecond to Imperial pint per Days
1.389988e-8 pt/ms × 71943049.55 = 0.9999997556 imp pt/d
1.389988e-8 pints per millisecond = 0.9999997556 imperial pint per days.
imperial pint per days = pints per millisecond × 71943049.5519
For a page dedicated to this direction, see Pint per Millisecond to Imperial pint per Days.
Understanding the Imperial pint per Days (imp pt/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 imperial pint per days?
1 imperial pint per days equals 1.389988e-8 pints per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert imperial pint per days to pint per millisecond?
Multiply the imperial pint per days value by 1.389988e-8. The converter above does this instantly to whatever precision you set.
How do I convert pint per millisecond back to imperial pint per days?
Use the reverse factor: 1 pint per millisecond equals 71,943,049.55 imperial pint per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial pint per days?
Imperial pint per Days (imp pt/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 imperial pint per days to pint per millisecond conversion exact?
Yes. Both imperial pint per days and pint per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 1.389988e-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.