Volumetric flow rate.
Cubic inch per Seconds to Cup per Seconds Converter — in3/s to cup/s
Convert Cubic inch per Seconds (in3/s) to Cup per Seconds (cup/s) using the exact conversion factor (1 cubic inch per seconds = 0.0692640693 cup per seconds). See the formula, worked examples, and conversion table.
Cubic inch per Seconds 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 1.6387064e-5 / 0.0002365882365.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inch per Seconds to Cup per Seconds
Cubic inch per Seconds 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 = cubic inch per seconds × 0.0692640692641
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch per seconds equals 0.000016387064 base units, and 1 cup per seconds equals 0.0002365882365 base units, so dividing one by the other gives the direct cubic inch per seconds-to-cup per seconds factor of 0.0692640692641.
Simple example
1 in3/s × 0.06926406926 = 0.0692640693 cup/s
1 cubic inch per seconds = 0.0692640693 cup per seconds.
Real-world example
60 in3/s × 0.06926406926 = 4.155844156 cup/s
60 cubic inch per seconds = 4.155844156 cup per seconds.
Conversion table
| Cubic inch per Seconds (in3/s) | Cup per Seconds (cup/s) |
|---|---|
| 0.1 in3/s | 0.0069264069 cup/s |
| 1 in3/s | 0.0692640693 cup/s |
| 10 in3/s | 0.6926406926 cup/s |
| 60 in3/s | 4.155844156 cup/s |
| 100 in3/s | 6.926406926 cup/s |
| 1,000 in3/s | 69.26406926 cup/s |
Reverse conversion: Cup per Seconds to Cubic inch per Seconds
0.0692640693 cup/s × 14.4375 = 1.000000001 in3/s
0.0692640693 cup per seconds = 1.000000001 cubic inch per seconds.
cubic inch per seconds = cup per seconds × 14.4375
For a page dedicated to this direction, see Cup per Seconds to Cubic inch per Seconds.
Understanding the Cubic inch per Seconds (in3/s)
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 cubic inch per seconds?
1 cubic inch per seconds equals 0.0692640693 cup per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch per seconds to cup per seconds?
Multiply the cubic inch per seconds value by 0.06926406926. The converter above does this instantly to whatever precision you set.
How do I convert cup per seconds back to cubic inch per seconds?
Use the reverse factor: 1 cup per seconds equals 14.4375 cubic inch per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch per seconds?
Cubic inch per Seconds (in3/s) 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 cubic inch per seconds to cup per seconds conversion exact?
Yes. Both cubic inch per seconds and cup per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.06926406926 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.