Volumetric flow rate.
Imperial pint per Days to Pint per Years Converter — imp pt/d to pt/yr
Convert Imperial pint per Days (imp pt/d) to Pint per Years (pt/yr) using the exact conversion factor (1 imperial pint per days = 438.6379532 pint per years). See the formula, worked examples, and conversion table.
Imperial pint per Days to Pint per Years converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 6.5770978e-9 / 1.49943655e-11.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial pint per Days to Pint per Years
Imperial pint per Days and Pint per Years both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Both are volumetric flow rate units.
Formula
pint per years = imperial pint per days × 438.637953166
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial pint per days equals 6.577098e-9 base units, and 1 pint per years equals 1.499437e-11 base units, so dividing one by the other gives the direct imperial pint per days-to-pint per years factor of 438.637953166.
Simple example
1 imp pt/d × 438.6379532 = 438.6379532 pt/yr
1 imperial pint per days = 438.6379532 pint per years.
Real-world example
60 imp pt/d × 438.6379532 = 26,318.27719 pt/yr
60 imperial pint per days = 26,318.27719 pint per years.
Conversion table
| Imperial pint per Days (imp pt/d) | Pint per Years (pt/yr) |
|---|---|
| 0.1 imp pt/d | 43.86379532 pt/yr |
| 1 imp pt/d | 438.6379532 pt/yr |
| 10 imp pt/d | 4,386.379532 pt/yr |
| 60 imp pt/d | 26,318.27719 pt/yr |
| 100 imp pt/d | 43,863.79532 pt/yr |
| 1,000 imp pt/d | 438,637.9532 pt/yr |
Reverse conversion: Pint per Years to Imperial pint per Days
438.6379532 pt/yr × 0.002279784485 = 1 imp pt/d
438.6379532 pint per years = 1 imperial pint per days.
imperial pint per days = pint per years × 0.00227978448463
For a page dedicated to this direction, see Pint per Years to Imperial pint per Days.
Understanding the Imperial pint per Days (imp pt/d)
Volumetric flow rate.
Understanding the Pint per Years (pt/yr)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pint per years are in 1 imperial pint per days?
1 imperial pint per days equals 438.6379532 pint per years, using the exact defined conversion factor rather than an estimate.
How do I convert imperial pint per days to pint per years?
Multiply the imperial pint per days value by 438.6379532. The converter above does this instantly to whatever precision you set.
How do I convert pint per years back to imperial pint per days?
Use the reverse factor: 1 pint per years equals 0.0022797845 imperial pint per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial pint per days?
Imperial pint per Days (imp pt/d) is a unit of flow rate.
What is a pint per years?
Pint per Years (pt/yr) is a unit of flow rate.
Is the imperial pint per days to pint per years conversion exact?
Yes. Both imperial pint per days and pint per years are defined by fixed standards rather than physical artifacts, so the factor of 438.6379532 used above is exact to as many digits as you choose to display.
What's the difference between volumetric and mass flow rate?
Volumetric flow rate measures the volume of fluid passing a point per unit time (for example, liters per second). Mass flow rate measures the mass instead. For a fluid of constant density the two are directly proportional, but for compressible fluids like gases, mass flow is often the more meaningful quantity.