Volumetric flow rate.
Imperial gallon per Days to Imperial quarts per Millisecond Converter — imp gal/d to imp qt/ms
Convert Imperial gallon per Days (imp gal/d) to Imperial quart per Millisecond (imp qt/ms) using the exact conversion factor (1 imperial gallon per days = 4.62963e-8 imperial quart per millisecond). See the formula, worked examples, and conversion table.
Imperial gallon per Days to Imperial 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 5.26167824e-8 / 1.1365225.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial gallon per Days to Imperial quarts per Millisecond
Imperial gallon per Days and Imperial 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
imperial quarts per millisecond = imperial gallon per days × 4.62963e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial gallon per days equals 5.261678e-8 base units, and 1 imperial quart per millisecond equals 1.1365225 base units, so dividing one by the other gives the direct imperial gallon per days-to-imperial quart per millisecond factor of 4.62963e-8.
Simple example
1 imp gal/d × 4.62963e-8 = 4.62963e-8 imp qt/ms
1 imperial gallon per days = 4.62963e-8 imperial quarts per millisecond.
Real-world example
60 imp gal/d × 4.62963e-8 = 0.0000027778 imp qt/ms
60 imperial gallon per days = 0.0000027778 imperial quarts per millisecond.
Conversion table
| Imperial gallon per Days (imp gal/d) | Imperial quart per Millisecond (imp qt/ms) |
|---|---|
| 0.1 imp gal/d | 4.62963e-9 imp qt/ms |
| 1 imp gal/d | 4.62963e-8 imp qt/ms |
| 10 imp gal/d | 4.62963e-7 imp qt/ms |
| 60 imp gal/d | 0.0000027778 imp qt/ms |
| 100 imp gal/d | 0.0000046296 imp qt/ms |
| 1,000 imp gal/d | 0.0000462963 imp qt/ms |
Reverse conversion: Imperial quart per Millisecond to Imperial gallon per Days
4.62963e-8 imp qt/ms × 21600000 = 1.00000008 imp gal/d
4.62963e-8 imperial quarts per millisecond = 1.00000008 imperial gallon per days.
imperial gallon per days = imperial quarts per millisecond × 21600000
For a page dedicated to this direction, see Imperial quart per Millisecond to Imperial gallon per Days.
Understanding the Imperial gallon per Days (imp gal/d)
Volumetric flow rate.
Understanding the Imperial quart per Millisecond (imp qt/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial quarts per millisecond are in 1 imperial gallon per days?
1 imperial gallon per days equals 4.62963e-8 imperial quarts per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per days to imperial quart per millisecond?
Multiply the imperial gallon per days value by 4.62963e-8. The converter above does this instantly to whatever precision you set.
How do I convert imperial quart per millisecond back to imperial gallon per days?
Use the reverse factor: 1 imperial quart per millisecond equals 21,600,000 imperial gallon per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial gallon per days?
Imperial gallon per Days (imp gal/d) is a unit of flow rate.
What is a imperial quart per millisecond?
Imperial quart per Millisecond (imp qt/ms) is a unit of flow rate.
Is the imperial gallon per days to imperial quart per millisecond conversion exact?
Yes. Both imperial gallon per days and imperial quart per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 4.62963e-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.