Volumetric flow rate.
Hectoliters per Millisecond to Gallon per Days Converter — hL/ms to gal/d
Convert Hectoliter per Millisecond (hL/ms) to Gallon per Days (gal/d) using the exact conversion factor (1 hectoliter per millisecond = 2,282,446,532 gallon per days). See the formula, worked examples, and conversion table.
Hectoliters per Millisecond to Gallon per Days 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 100 / 4.38126364e-8.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectoliters per Millisecond to Gallon per Days
Hectoliter per Millisecond and Gallon per Days 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
gallon per days = hectoliters per millisecond × 2282446532.37
This factor comes from each unit's defined relationship to the category's base unit: 1 hectoliter per millisecond equals 100 base units, and 1 gallon per days equals 4.381264e-8 base units, so dividing one by the other gives the direct hectoliter per millisecond-to-gallon per days factor of 2282446532.37.
Simple example
1 hL/ms × 2282446532 = 2,282,446,532 gal/d
1 hectoliter per millisecond = 2,282,446,532 gallon per days.
Real-world example
60 hL/ms × 2282446532 = 136,946,791,900 gal/d
60 hectoliters per millisecond = 136,946,791,900 gallon per days.
Conversion table
| Hectoliter per Millisecond (hL/ms) | Gallon per Days (gal/d) |
|---|---|
| 0.1 hL/ms | 228,244,653.2 gal/d |
| 1 hL/ms | 2,282,446,532 gal/d |
| 10 hL/ms | 22,824,465,320 gal/d |
| 60 hL/ms | 136,946,791,900 gal/d |
| 100 hL/ms | 228,244,653,200 gal/d |
| 1,000 hL/ms | 2.282447e+12 gal/d |
Reverse conversion: Gallon per Days to Hectoliter per Millisecond
1 gal/d × 4.381264e-10 = 4.381264e-10 hL/ms
1 gallon per days = 4.381264e-10 hectoliters per millisecond.
hectoliters per millisecond = gallon per days × 4.381264e-10
For a page dedicated to this direction, see Gallon per Days to Hectoliter per Millisecond.
Understanding the Hectoliter per Millisecond (hL/ms)
Volumetric flow rate.
Understanding the Gallon per Days (gal/d)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per days are in 1 hectoliter per millisecond?
1 hectoliter per millisecond equals 2,282,446,532 gallon per days, using the exact defined conversion factor rather than an estimate.
How do I convert hectoliter per millisecond to gallon per days?
Multiply the hectoliter per millisecond value by 2282446532. The converter above does this instantly to whatever precision you set.
How do I convert gallon per days back to hectoliter per millisecond?
Use the reverse factor: 1 gallon per days equals 4.381264e-10 hectoliters per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectoliter per millisecond?
Hectoliter per Millisecond (hL/ms) is a unit of flow rate.
What is a gallon per days?
Gallon per Days (gal/d) is a unit of flow rate.
Is the hectoliter per millisecond to gallon per days conversion exact?
Yes. Both hectoliter per millisecond and gallon per days are defined by fixed standards rather than physical artifacts, so the factor of 2282446532 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.