Convert Cubic feet per second to Cubic yards per second

Convert Cubic feet per second (ft³/s) to Cubic yards per second (yd³/s) instantly and accurately.

Cubic feet per second (ft³/s)
Cubic yards per second (yd³/s)

Conversion Formula

yd³/s = ft³/s × 0.03703703704

About Cubic feet per second

The cubic foot per second (ft³/s or cfs) equals 0.028316846592 m³/s, the primary unit for measuring river discharge and open-channel flow in the United States. The US Geological Survey publishes all streamflow data in cfs; irrigation water rights, flood-control gates, and dam spillway capacities are specified in cfs. The Colorado River at full natural flow is ≈22 000 cfs. 1 cfs = 0.028316846592 m³/s ≈ 28.317 L/s ≈ 448.8 US gpm.

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 second (ft³/s)Cubic yards per second (yd³/s)
1 ft³/s0.037037 yd³/s
2 ft³/s0.0740741 yd³/s
5 ft³/s0.185185 yd³/s
10 ft³/s0.37037 yd³/s
25 ft³/s0.925926 yd³/s
50 ft³/s1.85185 yd³/s
100 ft³/s3.7037 yd³/s

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