Volumetric flow rate.
Gallon per Days to Liter per Days Converter — gal/d to L/d
Convert Gallon per Days (gal/d) to Liter per Days (L/d) using the exact conversion factor (1 gallon per days = 3.785411784 liter per days). See the formula, worked examples, and conversion table.
Gallon per Days to Liter 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 4.38126364e-8 / 1.15740741e-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 Liter per Days
Gallon per Days and Liter 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
liter per days = gallon per days × 3.785411784
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 liter per days equals 1.157407e-8 base units, so dividing one by the other gives the direct gallon per days-to-liter per days factor of 3.785411784.
Simple example
1 gal/d × 3.785411784 = 3.785411784 L/d
1 gallon per days = 3.785411784 liter per days.
Real-world example
60 gal/d × 3.785411784 = 227.124707 L/d
60 gallon per days = 227.124707 liter per days.
Conversion table
| Gallon per Days (gal/d) | Liter per Days (L/d) |
|---|---|
| 0.1 gal/d | 0.3785411784 L/d |
| 1 gal/d | 3.785411784 L/d |
| 10 gal/d | 37.85411784 L/d |
| 60 gal/d | 227.124707 L/d |
| 100 gal/d | 378.5411784 L/d |
| 1,000 gal/d | 3,785.411784 L/d |
Reverse conversion: Liter per Days to Gallon per Days
3.785411784 L/d × 0.2641720524 = 1 gal/d
3.785411784 liter per days = 1 gallon per days.
gallon per days = liter per days × 0.264172052358
For a page dedicated to this direction, see Liter per Days to Gallon per Days.
Understanding the Gallon per Days (gal/d)
Volumetric flow rate.
Understanding the Liter per Days (L/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liter per days are in 1 gallon per days?
1 gallon per days equals 3.785411784 liter per days, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per days to liter per days?
Multiply the gallon per days value by 3.785411784. The converter above does this instantly to whatever precision you set.
How do I convert liter per days back to gallon per days?
Use the reverse factor: 1 liter per days equals 0.2641720524 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 liter per days?
Liter per Days (L/d) is a unit of flow rate.
Is the gallon per days to liter per days conversion exact?
Yes. Both gallon per days and liter per days are defined by fixed standards rather than physical artifacts, so the factor of 3.785411784 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.