Volumetric flow rate.
Gallon per Days to Cubic yard per Years Converter — gal/d to yd3/yr
Convert Gallon per Days (gal/d) to Cubic yard per Years (yd3/yr) using the exact conversion factor (1 gallon per days = 1.808363715 cubic yard per years). See the formula, worked examples, and conversion table.
Gallon per Days to Cubic yard per Years 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 / 2.4227779e-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 Days to Cubic yard per Years
Gallon per Days and Cubic yard per Years 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
cubic yard per years = gallon per days × 1.80836371528
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 cubic yard per years equals 2.422778e-8 base units, so dividing one by the other gives the direct gallon per days-to-cubic yard per years factor of 1.80836371528.
Simple example
1 gal/d × 1.808363715 = 1.808363715 yd3/yr
1 gallon per days = 1.808363715 cubic yard per years.
Real-world example
60 gal/d × 1.808363715 = 108.5018229 yd3/yr
60 gallon per days = 108.5018229 cubic yard per years.
Conversion table
| Gallon per Days (gal/d) | Cubic yard per Years (yd3/yr) |
|---|---|
| 0.1 gal/d | 0.1808363715 yd3/yr |
| 1 gal/d | 1.808363715 yd3/yr |
| 10 gal/d | 18.08363715 yd3/yr |
| 60 gal/d | 108.5018229 yd3/yr |
| 100 gal/d | 180.8363715 yd3/yr |
| 1,000 gal/d | 1,808.363715 yd3/yr |
Reverse conversion: Cubic yard per Years to Gallon per Days
1.808363715 yd3/yr × 0.5529861009 = 0.9999999998 gal/d
1.808363715 cubic yard per years = 0.9999999998 gallon per days.
gallon per days = cubic yard per years × 0.552986100944
For a page dedicated to this direction, see Cubic yard per Years to Gallon per Days.
Understanding the Gallon per Days (gal/d)
Volumetric flow rate.
Understanding the Cubic yard per Years (yd3/yr)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic yard per years are in 1 gallon per days?
1 gallon per days equals 1.808363715 cubic yard per years, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per days to cubic yard per years?
Multiply the gallon per days value by 1.808363715. The converter above does this instantly to whatever precision you set.
How do I convert cubic yard per years back to gallon per days?
Use the reverse factor: 1 cubic yard per years equals 0.5529861009 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 cubic yard per years?
Cubic yard per Years (yd3/yr) is a unit of flow rate.
Is the gallon per days to cubic yard per years conversion exact?
Yes. Both gallon per days and cubic yard per years are defined by fixed standards rather than physical artifacts, so the factor of 1.808363715 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.