21 ppm ≈ 25.2856 ft3ph. To convert pints per minute to cubic feet per hour, multiply by 1.2040774: 21 × 1.2040774 = 25.2856.
How to convert pints per minute to cubic feet per hour
ft3ph = ppm × 1.2040774
- 1 ppm = 1.2040774 ft3ph (and 1 ft3ph = 0.83051139 ppm).
- Multiply the amount by the factor: 21 × 1.2040774 = 25.2856.
- Answer: 21 ppm ≈ 25.2856 ft3ph (rounded to 6 significant figures).
Pints Per Minute to Cubic Feet Per Hour table
| Pints Per Minute (ppm) | Cubic Feet Per Hour (ft3ph) |
|---|---|
| 16 ppm | 19.2652 ft3ph |
| 17 ppm | 20.4693 ft3ph |
| 18 ppm | 21.6734 ft3ph |
| 19 ppm | 22.8775 ft3ph |
| 20 ppm | 24.0815 ft3ph |
| 21 ppm | 25.2856 ft3ph |
| 22 ppm | 26.4897 ft3ph |
| 23 ppm | 27.6938 ft3ph |
| 24 ppm | 28.8979 ft3ph |
| 25 ppm | 30.1019 ft3ph |
| 26 ppm | 31.306 ft3ph |
| ppm | ft3ph |
|---|---|
| 1 ppm | 1.2041 ft3ph |
| 5 ppm | 6.0204 ft3ph |
| 10 ppm | 12.0408 ft3ph |
| 50 ppm | 60.2039 ft3ph |
| 100 ppm | 120.408 ft3ph |
| 1,000 ppm | 1,204.08 ft3ph |