Volumetric flow rate.
Cubic foot per Days to Cubic Millimeter per Seconds Converter — ft3/d to mm3/s
Convert Cubic foot per Days (ft3/d) to Cubic Millimeter per Seconds (mm3/s) using the exact conversion factor (1 cubic foot per days = 327.74128 cubic millimeter per seconds). See the formula, worked examples, and conversion table.
Cubic foot per Days to Cubic Millimeter 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 3.2774128e-7 / 1e-9.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic foot per Days to Cubic Millimeter per Seconds
Cubic foot per Days and Cubic Millimeter 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 millimeter per seconds = cubic foot per days × 327.74128
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per days equals 3.277413e-7 base units, and 1 cubic millimeter per seconds equals 1e-9 base units, so dividing one by the other gives the direct cubic foot per days-to-cubic millimeter per seconds factor of 327.74128.
Simple example
1 ft3/d × 327.74128 = 327.74128 mm3/s
1 cubic foot per days = 327.74128 cubic millimeter per seconds.
Real-world example
60 ft3/d × 327.74128 = 19,664.4768 mm3/s
60 cubic foot per days = 19,664.4768 cubic millimeter per seconds.
Conversion table
| Cubic foot per Days (ft3/d) | Cubic Millimeter per Seconds (mm3/s) |
|---|---|
| 0.1 ft3/d | 32.774128 mm3/s |
| 1 ft3/d | 327.74128 mm3/s |
| 10 ft3/d | 3,277.4128 mm3/s |
| 60 ft3/d | 19,664.4768 mm3/s |
| 100 ft3/d | 32,774.128 mm3/s |
| 1,000 ft3/d | 327,741.28 mm3/s |
Reverse conversion: Cubic Millimeter per Seconds to Cubic foot per Days
327.74128 mm3/s × 0.003051187205 = 1 ft3/d
327.74128 cubic millimeter per seconds = 1 cubic foot per days.
cubic foot per days = cubic millimeter per seconds × 0.00305118720474
For a page dedicated to this direction, see Cubic Millimeter per Seconds to Cubic foot per Days.
Understanding the Cubic foot per Days (ft3/d)
Volumetric flow rate.
Understanding the Cubic Millimeter per Seconds (mm3/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic millimeter per seconds are in 1 cubic foot per days?
1 cubic foot per days equals 327.74128 cubic millimeter per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per days to cubic millimeter per seconds?
Multiply the cubic foot per days value by 327.74128. The converter above does this instantly to whatever precision you set.
How do I convert cubic millimeter per seconds back to cubic foot per days?
Use the reverse factor: 1 cubic millimeter per seconds equals 0.0030511872 cubic foot per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic foot per days?
Cubic foot per Days (ft3/d) is a unit of flow rate.
What is a cubic millimeter per seconds?
Cubic Millimeter per Seconds (mm3/s) is a unit of flow rate.
Is the cubic foot per days to cubic millimeter per seconds conversion exact?
Yes. Both cubic foot per days and cubic millimeter per seconds are defined by fixed standards rather than physical artifacts, so the factor of 327.74128 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.