Convert Cubic feet per day to Cubic yards per second
Convert Cubic feet per day (ft³/d) to Cubic yards per second (yd³/s) instantly and accurately.
Conversion Formula
yd³/s = ft³/d × 4.286694102e-7
About Cubic feet per day
The cubic foot per day (ft³/d) equals 0.028316846592/86400 ≈ 3.277×10⁻⁷ m³/s, found in US oil-and-gas production reports for low-rate gas wells and groundwater monitoring wells. A marginal coalbed-methane well producing 50 Mcf/d (50 000 ft³/d) of gas represents a modest but economic flow; residential water-well yield tests report in ft³/d. 1 ft³/d ≈ 3.277×10⁻⁷ m³/s.
About Cubic yards per second
The cubic yard per second (yd³/s) equals 0.764554857984 m³/s, a large unit used in US civil engineering for river flood-stage measurements and reservoir emergency-spillway capacity. A major dam spillway releasing water at 1 000 yd³/s could drain an Olympic pool in about 3 seconds. 1 yd³/s = 0.764554857984 m³/s ≈ 764.555 L/s ≈ 27 ft³/s.
Quick Reference Table
| Cubic feet per day (ft³/d) | Cubic yards per second (yd³/s) |
|---|---|
| 1 ft³/d | 4.287 × 10-7 yd³/s |
| 2 ft³/d | 8.573 × 10-7 yd³/s |
| 5 ft³/d | 2.143 × 10-6 yd³/s |
| 10 ft³/d | 4.287 × 10-6 yd³/s |
| 25 ft³/d | 1.072 × 10-5 yd³/s |
| 50 ft³/d | 2.143 × 10-5 yd³/s |
| 100 ft³/d | 4.287 × 10-5 yd³/s |