Volumetric flow rate.
Gallon per Days to Imperial pints per Millisecond Converter — gal/d to imp pt/ms
Convert Gallon per Days (gal/d) to Imperial pint per Millisecond (imp pt/ms) using the exact conversion factor (1 gallon per days = 7.709946e-8 imperial pint per millisecond). See the formula, worked examples, and conversion table.
Gallon per Days to Imperial 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 4.38126364e-8 / 0.56826125.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Days to Imperial pints per Millisecond
Gallon per Days and Imperial 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
imperial pints per millisecond = gallon per days × 7.709946e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per days equals 4.381264e-8 base units, and 1 imperial pint per millisecond equals 0.56826125 base units, so dividing one by the other gives the direct gallon per days-to-imperial pint per millisecond factor of 7.709946e-8.
Simple example
1 gal/d × 7.709946e-8 = 7.709946e-8 imp pt/ms
1 gallon per days = 7.709946e-8 imperial pints per millisecond.
Real-world example
60 gal/d × 7.709946e-8 = 0.000004626 imp pt/ms
60 gallon per days = 0.000004626 imperial pints per millisecond.
Conversion table
| Gallon per Days (gal/d) | Imperial pint per Millisecond (imp pt/ms) |
|---|---|
| 0.1 gal/d | 7.709946e-9 imp pt/ms |
| 1 gal/d | 7.709946e-8 imp pt/ms |
| 10 gal/d | 7.709946e-7 imp pt/ms |
| 60 gal/d | 0.000004626 imp pt/ms |
| 100 gal/d | 0.0000077099 imp pt/ms |
| 1,000 gal/d | 0.0000770995 imp pt/ms |
Reverse conversion: Imperial pint per Millisecond to Gallon per Days
7.709946e-8 imp pt/ms × 12970259.2 = 0.99999998 gal/d
7.709946e-8 imperial pints per millisecond = 0.99999998 gallon per days.
gallon per days = imperial pints per millisecond × 12970259.1955
For a page dedicated to this direction, see Imperial pint per Millisecond to Gallon per Days.
Understanding the Gallon per Days (gal/d)
Volumetric flow rate.
Understanding the Imperial pint per Millisecond (imp pt/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial pints per millisecond are in 1 gallon per days?
1 gallon per days equals 7.709946e-8 imperial pints per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per days to imperial pint per millisecond?
Multiply the gallon per days value by 7.709946e-8. The converter above does this instantly to whatever precision you set.
How do I convert imperial pint per millisecond back to gallon per days?
Use the reverse factor: 1 imperial pint per millisecond equals 12,970,259.2 gallon per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per days?
Gallon per Days (gal/d) is a unit of flow rate.
What is a imperial pint per millisecond?
Imperial pint per Millisecond (imp pt/ms) is a unit of flow rate.
Is the gallon per days to imperial pint per millisecond conversion exact?
Yes. Both gallon per days and imperial pint per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 7.709946e-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.