Volumetric flow rate.
Gallon per Hours to Imperial gallon per Days Converter — gal/h to imp gal/d
Convert Gallon per Hours (gal/h) to Imperial gallon per Days (imp gal/d) using the exact conversion factor (1 gallon per hours = 19.98418043 imperial gallon per days). See the formula, worked examples, and conversion table.
Gallon per Hours to Imperial gallon per Days 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 1.05150327e-6 / 5.26167824e-8.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Hours to Imperial gallon per Days
Gallon per Hours and Imperial gallon per Days 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 gallon per days = gallon per hours × 19.9841804311
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per hours equals 0.00000105150327333 base units, and 1 imperial gallon per days equals 5.261678e-8 base units, so dividing one by the other gives the direct gallon per hours-to-imperial gallon per days factor of 19.9841804311.
Simple example
1 gal/h × 19.98418043 = 19.98418043 imp gal/d
1 gallon per hours = 19.98418043 imperial gallon per days.
Real-world example
60 gal/h × 19.98418043 = 1,199.050826 imp gal/d
60 gallon per hours = 1,199.050826 imperial gallon per days.
Conversion table
| Gallon per Hours (gal/h) | Imperial gallon per Days (imp gal/d) |
|---|---|
| 0.1 gal/h | 1.998418043 imp gal/d |
| 1 gal/h | 19.98418043 imp gal/d |
| 10 gal/h | 199.8418043 imp gal/d |
| 60 gal/h | 1,199.050826 imp gal/d |
| 100 gal/h | 1,998.418043 imp gal/d |
| 1,000 gal/h | 19,984.18043 imp gal/d |
Reverse conversion: Imperial gallon per Days to Gallon per Hours
19.98418043 imp gal/d × 0.05003958023 = 0.9999999999 gal/h
19.98418043 imperial gallon per days = 0.9999999999 gallon per hours.
gallon per hours = imperial gallon per days × 0.0500395802294
For a page dedicated to this direction, see Imperial gallon per Days to Gallon per Hours.
Understanding the Gallon per Hours (gal/h)
Volumetric flow rate.
Understanding the Imperial gallon per Days (imp gal/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallon per days are in 1 gallon per hours?
1 gallon per hours equals 19.98418043 imperial gallon per days, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per hours to imperial gallon per days?
Multiply the gallon per hours value by 19.98418043. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per days back to gallon per hours?
Use the reverse factor: 1 imperial gallon per days equals 0.0500395802 gallon per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per hours?
Gallon per Hours (gal/h) is a unit of flow rate.
What is a imperial gallon per days?
Imperial gallon per Days (imp gal/d) is a unit of flow rate.
Is the gallon per hours to imperial gallon per days conversion exact?
Yes. Both gallon per hours and imperial gallon per days are defined by fixed standards rather than physical artifacts, so the factor of 19.98418043 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.