Understanding Pint Per Hour and Kilolitre Per Minute
A pint per hour (pnt/h) measures how many liquid pints flow past a point in one hour. In the United States, one liquid pint equals 0.473 176 473 liters.
A kilolitre per minute (kl/min) measures how many kilolitres (1 kilolitre = 1 000 liters) pass a point each minute. It is a common unit in industrial water‑treatment and large‑scale irrigation.
Both units belong to the same parent measure: volume flow rate. This means they describe the same physical concept—how quickly a volume moves—just on very different scales.
Exact Conversion Factor
The precise relationship is:
1 pint per hour = 0.000007886 kilolitre per minute
In scientific notation, the factor is 7.886 × 10⁻⁶ kl/min per pnt/h. This factor is derived from the definitions of a pint, a litre, and the time conversion (60 minutes = 1 hour).
Conversion Formula
To convert any volume‑flow value from pints per hour to kilolitres per minute, multiply by the factor:
kl/min = (pnt/h) × 7.886 × 10⁻⁶
The formula works both ways: divide by the same factor to go from kl/min back to pnt/h.
Worked Example: 25 pint per hour to kilolitre per minute
- Start with the source value: 25 pnt/h.
- Apply the factor: 25 × 7.886 × 10⁻⁶ = 0.00019715 kl/min.
- Round to four significant figures: 0.0001972 kl/min.
So, 25 pint per hour ≈ 0.0001972 kilolitre per minute.
Pint Per Hour to Kilolitre Per Minute Conversion Table
Each row applies the same rule: multiply pint per hour by 7.886 × 10⁻⁶.
| Pint per Hour (pnt/h) | Kilolitre per Minute (kl/min) |
|---|---|
| 1 pnt/h | 0.000007886 kl/min |
| 2 pnt/h | 0.00001577 kl/min |
| 5 pnt/h | 0.00003943 kl/min |
| 10 pnt/h | 0.00007886 kl/min |
| 20 pnt/h | 0.0001577 kl/min |
| 50 pnt/h | 0.0003943 kl/min |
| 100 pnt/h | 0.0007886 kl/min |
| 500 pnt/h | 0.003943 kl/min |
Practical Applications
- Home brewing: Small‑scale brewers often track wort flow in pints per hour, but larger equipment specifications may be listed in kilolitres per minute.
- Industrial cooling: Engineers design coolant loops using kl/min for clarity, yet legacy manuals sometimes still quote pnt/h.
- Agricultural irrigation: Farmers may measure water delivery in pints per hour for handheld devices, while the main pump rating is in kl/min.
Key Takeaway
The conversion between pint per hour and kilolitre per minute is straightforward: multiply by 7.886 × 10⁻⁶. With this factor, you can instantly translate small‑scale flow measurements into the large‑scale units used by industry.
Need more conversions? Explore our full suite of volume‑flow tools and keep your calculations flowing smoothly.