Cubic feet per second to Cubic metres per second
1 cubic foot per second = 0.028317 cubic metres per second · 1 m³/s = 35.315 ft³/s
1 cubic foot per second = 0.028317 cubic metres per second
How it’s calculated
m³/s = ft³/s × 0.02831684659
- Multiply the value in cubic feet per second by 0.02831684659.
- To go back, divide by 0.02831684659 (or multiply by 35.31466672).
- 1 ft³/s = 0.02831684659 m³/s · 1 m³/s = 35.31466672 ft³/s
Show worked solutionFactor, unit cancellation and rounding, step by step
Find the conversion factor
By definition 1 ft³/s = 0.028316846592 m³/s. Source: NIST SP 811 / Handbook 44; BIPM SI Brochure (9th ed.) (SI prefixes and accepted units).
Multiply by the factor written as a fraction
Put ft³/s in the denominator so it cancels, leaving m³/s.
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 0.028317 m³/s
1 ft³/s in other units
Batch convert ft³/s → m³/s
- 1 ft³/s = 0.028317 m³/s
- 5 ft³/s = 0.14158 m³/s
- 10 ft³/s = 0.28317 m³/s
- 25 ft³/s = 0.70792 m³/s
Quick examples
- 1 cubic foot per second = 0.028317 cubic metres per second
- 5 cubic feet per second = 0.14158 cubic metres per second
- 10 cubic feet per second = 0.28317 cubic metres per second
- 25 cubic feet per second = 0.70792 cubic metres per second
- 100 cubic feet per second = 2.8317 cubic metres per second
About these units
Cubic foot per second (ft³/s)
US & imperial (identical)
1 ft³/s = 0.02831684659 m³/s
Source: NIST SP 811 / Handbook 44
Cubic metre per second (m³/s)
SI (metric)
Base unit
Source: BIPM SI Brochure (9th ed.) (SI prefixes and accepted units)
Cubic feet per second to cubic metres per second conversion table
| Cubic feet per second (ft³/s) | Cubic metres per second (m³/s) |
|---|---|
| 0.1 ft³/s | 0.0028317 m³/s |
| 0.5 ft³/s | 0.014158 m³/s |
| 1 ft³/s | 0.028317 m³/s |
| 2 ft³/s | 0.056634 m³/s |
| 3 ft³/s | 0.084951 m³/s |
| 4 ft³/s | 0.11327 m³/s |
| 5 ft³/s | 0.14158 m³/s |
| 6 ft³/s | 0.1699 m³/s |
| 7 ft³/s | 0.19822 m³/s |
| 8 ft³/s | 0.22653 m³/s |
| 9 ft³/s | 0.25485 m³/s |
| 10 ft³/s | 0.28317 m³/s |
| 15 ft³/s | 0.42475 m³/s |
| 20 ft³/s | 0.56634 m³/s |
| 25 ft³/s | 0.70792 m³/s |
| 30 ft³/s | 0.84951 m³/s |
| 40 ft³/s | 1.1327 m³/s |
| 50 ft³/s | 1.4158 m³/s |
| 75 ft³/s | 2.1238 m³/s |
| 100 ft³/s | 2.8317 m³/s |
| 250 ft³/s | 7.0792 m³/s |
| 500 ft³/s | 14.158 m³/s |
| 1,000 ft³/s | 28.317 m³/s |
Related conversions
Frequently asked questions
How do I convert cubic feet per second to cubic metres per second?
Use m³/s = ft³/s × 0.02831684659. Multiply the value in cubic feet per second by 0.02831684659.
How many cubic metres per second are in 1 cubic foot per second?
1 cubic foot per second (ft³/s) equals 0.028317 cubic metres per second (m³/s); more precisely 0.02831684659.
How many cubic feet per second are in 1 cubic metre per second?
1 cubic metre per second (m³/s) equals 35.315 cubic feet per second (ft³/s); more precisely 35.31466672.
What is 10 ft³/s in m³/s?
10 cubic feet per second = 0.28317 cubic metres per second.
Formula: m³/s = ft³/s × 0.02831684659. Factors last reviewed 2026-10-27.