Volumetric Flow Rate
ft³/hrtoL/s
Convert cubic feet per hour (ft³/hr) to litres per second (L/s).
Factor1 ft³/hr = 0.007865791 L/s
Converter
ft³/hr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
L/s
Rendered to 6 significant figures.
Formula
Formula
L/s = ft³/hr × 0.007865791
Multiply any value in cubic feet per hour by 0.007865791 to obtain the value in litres per second.
Worked example
Convert 100 ft³/hr to L/s.
- 01Start with 100 ft³/hr.
- 02Multiply by the conversion factor: 100 × 0.007865791 = 0.786579 L/s.
Result100 ft³/hr = 0.786579 L/s
Conversion table
| ft³/hr | L/s |
|---|---|
| 1 | 0.0078658 |
| 2 | 0.015732 |
| 5 | 0.039329 |
| 10 | 0.078658 |
| 20 | 0.15732 |
| 50 | 0.39329 |
| 100 | 0.78658 |
| 200 | 1.5732 |
| 500 | 3.9329 |
| 1000 | 7.8658 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft³/hr to L/s?
1 ft³/hr equals 0.007865791 L/s. To convert, multiply the value in cubic feet per hour by 0.007865791.
How do I convert 1 ft³/hr to L/s?
1 ft³/hr = 0.00786579 L/s. For any value, multiply by 0.007865791.
How do I convert L/s back to ft³/hr?
Divide by the same factor — or equivalently, multiply by 127.1328. So 1 L/s = 127.133 ft³/hr.
When would I need to convert cubic foot per hour to litre per second?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. ft³/hr to L/s is a frequently needed conversion for hydraulic sizing.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).