Volumetric flow rate.
Gallon per Years to Imperial gallon per Days Converter — gal/yr to imp gal/d
Convert Gallon per Years (gal/yr) to Imperial gallon per Days (imp gal/d) using the exact conversion factor (1 gallon per years = 0.0022797845 imperial gallon per days). See the formula, worked examples, and conversion table.
Gallon per Years 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 1.19954924e-10 / 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 Years to Imperial gallon per Days
Gallon per Years 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 years × 0.00227978448463
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per years equals 1.199549e-10 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 years-to-imperial gallon per days factor of 0.00227978448463.
Simple example
1 gal/yr × 0.002279784485 = 0.0022797845 imp gal/d
1 gallon per years = 0.0022797845 imperial gallon per days.
Real-world example
60 gal/yr × 0.002279784485 = 0.1367870691 imp gal/d
60 gallon per years = 0.1367870691 imperial gallon per days.
Conversion table
| Gallon per Years (gal/yr) | Imperial gallon per Days (imp gal/d) |
|---|---|
| 0.1 gal/yr | 0.0002279784 imp gal/d |
| 1 gal/yr | 0.0022797845 imp gal/d |
| 10 gal/yr | 0.0227978449 imp gal/d |
| 60 gal/yr | 0.1367870691 imp gal/d |
| 100 gal/yr | 0.2279784485 imp gal/d |
| 1,000 gal/yr | 2.279784485 imp gal/d |
Reverse conversion: Imperial gallon per Days to Gallon per Years
0.0022797845 imp gal/d × 438.6379532 = 1.000000007 gal/yr
0.0022797845 imperial gallon per days = 1.000000007 gallon per years.
gallon per years = imperial gallon per days × 438.637953166
For a page dedicated to this direction, see Imperial gallon per Days to Gallon per Years.
Understanding the Gallon per Years (gal/yr)
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 years?
1 gallon per years equals 0.0022797845 imperial gallon per days, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per years to imperial gallon per days?
Multiply the gallon per years value by 0.002279784485. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per days back to gallon per years?
Use the reverse factor: 1 imperial gallon per days equals 438.6379532 gallon per years. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per years?
Gallon per Years (gal/yr) 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 years to imperial gallon per days conversion exact?
Yes. Both gallon per years and imperial gallon per days are defined by fixed standards rather than physical artifacts, so the factor of 0.002279784485 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.