Volumetric flow rate.
Gallon per Days to Cup per Seconds Converter — gal/d to cup/s
Convert Gallon per Days (gal/d) to Cup per Seconds (cup/s) using the exact conversion factor (1 gallon per days = 0.0001851852 cup per seconds). See the formula, worked examples, and conversion table.
Gallon per Days to Cup per Seconds 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 / 0.0002365882365.
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 Cup per Seconds
Gallon per Days and Cup per Seconds 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
cup per seconds = gallon per days × 0.000185185185185
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 cup per seconds equals 0.0002365882365 base units, so dividing one by the other gives the direct gallon per days-to-cup per seconds factor of 0.000185185185185.
Simple example
1 gal/d × 0.0001851851852 = 0.0001851852 cup/s
1 gallon per days = 0.0001851852 cup per seconds.
Real-world example
60 gal/d × 0.0001851851852 = 0.0111111111 cup/s
60 gallon per days = 0.0111111111 cup per seconds.
Conversion table
| Gallon per Days (gal/d) | Cup per Seconds (cup/s) |
|---|---|
| 0.1 gal/d | 0.0000185185 cup/s |
| 1 gal/d | 0.0001851852 cup/s |
| 10 gal/d | 0.0018518519 cup/s |
| 60 gal/d | 0.0111111111 cup/s |
| 100 gal/d | 0.0185185185 cup/s |
| 1,000 gal/d | 0.1851851852 cup/s |
Reverse conversion: Cup per Seconds to Gallon per Days
0.0001851852 cup/s × 5400 = 1.00000008 gal/d
0.0001851852 cup per seconds = 1.00000008 gallon per days.
gallon per days = cup per seconds × 5400
For a page dedicated to this direction, see Cup per Seconds to Gallon per Days.
Understanding the Gallon per Days (gal/d)
Volumetric flow rate.
Understanding the Cup per Seconds (cup/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cup per seconds are in 1 gallon per days?
1 gallon per days equals 0.0001851852 cup per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per days to cup per seconds?
Multiply the gallon per days value by 0.0001851851852. The converter above does this instantly to whatever precision you set.
How do I convert cup per seconds back to gallon per days?
Use the reverse factor: 1 cup per seconds equals 5,400 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 cup per seconds?
Cup per Seconds (cup/s) is a unit of flow rate.
Is the gallon per days to cup per seconds conversion exact?
Yes. Both gallon per days and cup per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.0001851851852 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.