991 ppm ≈ 33,788.8 lph. To convert pints per minute to litres per hour, multiply by 34.095672: 991 × 34.095672 = 33,788.8.
How to convert pints per minute to litres per hour
lph = ppm × 34.095672
- 1 ppm = 34.095672 lph (and 1 lph = 0.029329236 ppm).
- Multiply the amount by the factor: 991 × 34.095672 = 33,788.8.
- Answer: 991 ppm ≈ 33,788.8 lph (rounded to 6 significant figures).
Pints Per Minute to Litres Per Hour table
| Pints Per Minute (ppm) | Litres Per Hour (lph) |
|---|---|
| 986 ppm | 33,618.3 lph |
| 987 ppm | 33,652.4 lph |
| 988 ppm | 33,686.5 lph |
| 989 ppm | 33,720.6 lph |
| 990 ppm | 33,754.7 lph |
| 991 ppm | 33,788.8 lph |
| 992 ppm | 33,822.9 lph |
| 993 ppm | 33,857 lph |
| 994 ppm | 33,891.1 lph |
| 995 ppm | 33,925.2 lph |
| 996 ppm | 33,959.3 lph |
| ppm | lph |
|---|---|
| 1 ppm | 34.0957 lph |
| 5 ppm | 170.478 lph |
| 10 ppm | 340.957 lph |
| 50 ppm | 1,704.78 lph |
| 100 ppm | 3,409.57 lph |
| 1,000 ppm | 34,095.7 lph |