Volumetric flow rate.
Cup per Seconds to Cubic inch per Seconds Converter — cup/s to in3/s
Convert Cup per Seconds (cup/s) to Cubic inch per Seconds (in3/s) using the exact conversion factor (1 cup per seconds = 14.4375 cubic inch per seconds). See the formula, worked examples, and conversion table.
Cup per Seconds to Cubic inch 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 0.0002365882365 / 1.6387064e-5.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cup per Seconds to Cubic inch per Seconds
Cup per Seconds and Cubic inch 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
cubic inch per seconds = cup per seconds × 14.4375
This factor comes from each unit's defined relationship to the category's base unit: 1 cup per seconds equals 0.0002365882365 base units, and 1 cubic inch per seconds equals 0.000016387064 base units, so dividing one by the other gives the direct cup per seconds-to-cubic inch per seconds factor of 14.4375.
Simple example
1 cup/s × 14.4375 = 14.4375 in3/s
1 cup per seconds = 14.4375 cubic inch per seconds.
Real-world example
60 cup/s × 14.4375 = 866.25 in3/s
60 cup per seconds = 866.25 cubic inch per seconds.
Conversion table
| Cup per Seconds (cup/s) | Cubic inch per Seconds (in3/s) |
|---|---|
| 0.1 cup/s | 1.44375 in3/s |
| 1 cup/s | 14.4375 in3/s |
| 10 cup/s | 144.375 in3/s |
| 60 cup/s | 866.25 in3/s |
| 100 cup/s | 1,443.75 in3/s |
| 1,000 cup/s | 14,437.5 in3/s |
Reverse conversion: Cubic inch per Seconds to Cup per Seconds
14.4375 in3/s × 0.06926406926 = 1 cup/s
14.4375 cubic inch per seconds = 1 cup per seconds.
cup per seconds = cubic inch per seconds × 0.0692640692641
For a page dedicated to this direction, see Cubic inch per Seconds to Cup per Seconds.
Understanding the Cup per Seconds (cup/s)
Volumetric flow rate.
Understanding the Cubic inch per Seconds (in3/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic inch per seconds are in 1 cup per seconds?
1 cup per seconds equals 14.4375 cubic inch per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cup per seconds to cubic inch per seconds?
Multiply the cup per seconds value by 14.4375. The converter above does this instantly to whatever precision you set.
How do I convert cubic inch per seconds back to cup per seconds?
Use the reverse factor: 1 cubic inch per seconds equals 0.0692640693 cup per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cup per seconds?
Cup per Seconds (cup/s) is a unit of flow rate.
What is a cubic inch per seconds?
Cubic inch per Seconds (in3/s) is a unit of flow rate.
Is the cup per seconds to cubic inch per seconds conversion exact?
Yes. Both cup per seconds and cubic inch per seconds are defined by fixed standards rather than physical artifacts, so the factor of 14.4375 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.