Volumetric flow rate.
Cubic yard per Days to Cubic foot per Seconds Converter — yd3/d to ft3/s
Convert Cubic yard per Days (yd3/d) to Cubic foot per Seconds (ft3/s) using the exact conversion factor (1 cubic yard per days = 0.0003125 cubic foot per seconds). See the formula, worked examples, conversion table, and common uses.
Cubic yard per Days to Cubic foot 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 8.84901456e-6 / 0.02831684659.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic yard per Days to Cubic foot per Seconds
Cubic yard per Days and Cubic foot 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 foot per seconds = cubic yard per days × 0.0003125
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic yard per days equals 0.00000884901456 base units, and 1 cubic foot per seconds equals 0.028316846592 base units, so dividing one by the other gives the direct cubic yard per days-to-cubic foot per seconds factor of 0.0003125.
Simple example
1 yd3/d × 0.0003125 = 0.0003125 ft3/s
1 cubic yard per days = 0.0003125 cubic foot per seconds.
Real-world example
60 yd3/d × 0.0003125 = 0.01875 ft3/s
60 cubic yard per days = 0.01875 cubic foot per seconds.
Conversion table
| Cubic yard per Days (yd3/d) | Cubic foot per Seconds (ft3/s) |
|---|---|
| 0.1 yd3/d | 0.00003125 ft3/s |
| 1 yd3/d | 0.0003125 ft3/s |
| 10 yd3/d | 0.003125 ft3/s |
| 60 yd3/d | 0.01875 ft3/s |
| 100 yd3/d | 0.03125 ft3/s |
| 1,000 yd3/d | 0.3125 ft3/s |
Reverse conversion: Cubic foot per Seconds to Cubic yard per Days
0.0003125 ft3/s × 3200 = 1 yd3/d
0.0003125 cubic foot per seconds = 1 cubic yard per days.
cubic yard per days = cubic foot per seconds × 3200
For a page dedicated to this direction, see Cubic foot per Seconds to Cubic yard per Days.
Understanding the Cubic yard per Days (yd3/d)
Volumetric flow rate.
Understanding the Cubic foot per Seconds
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Where it's used: United States
Uses of the Cubic foot per Seconds today
- The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations
Cubic foot per Seconds — sources
- USGS Water Science School — Cubic feet per second (cfs) is the standard unit USGS uses to report streamflow.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic foot per seconds are in 1 cubic yard per days?
1 cubic yard per days equals 0.0003125 cubic foot per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic yard per days to cubic foot per seconds?
Multiply the cubic yard per days value by 0.0003125. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per seconds back to cubic yard per days?
Use the reverse factor: 1 cubic foot per seconds equals 3,200 cubic yard per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic yard per days?
Cubic yard per Days (yd3/d) is a unit of flow rate.
What is a cubic foot per seconds?
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Is the cubic yard per days to cubic foot per seconds conversion exact?
Yes. Both cubic yard per days and cubic foot per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.0003125 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.