Convert US gallons per day to Microlitres per second
Convert US gallons per day (gpd) to Microlitres per second (µL/s) instantly and accurately.
Conversion Formula
µL/s = gpd × 43.81263639
About US gallons per day
The US gallon per day (gpd) equals 3.785411784×10⁻³/86400 ≈ 4.381×10⁻⁸ m³/s, the standard unit in US water-utility regulation and residential water-well pump sizing. The US national average residential water use is about 80-100 gpd per person; a reverse-osmosis membrane module is rated in gpd (50-100 gpd for domestic units). 1 US gpd ≈ 4.381×10⁻⁸ m³/s.
About Microlitres per second
The microlitre per second (µL/s) equals 10⁻⁹ m³/s, the working range of microfluidic lab-on-a-chip devices and nano-HPLC pumps. Organ-on-a-chip perfusion bioreactors, droplet microfluidic systems, and capillary electrophoresis instruments operate at 0.1-100 µL/s. A syringe pump delivering 0.36 mL/h produces exactly 0.1 µL/s. 1 µL/s = 10⁻⁹ m³/s = 60 µL/min.
Quick Reference Table
| US gallons per day (gpd) | Microlitres per second (µL/s) |
|---|---|
| 1 gpd | 43.8126 µL/s |
| 2 gpd | 87.6253 µL/s |
| 5 gpd | 219.063 µL/s |
| 10 gpd | 438.126 µL/s |
| 25 gpd | 1095.32 µL/s |
| 50 gpd | 2190.63 µL/s |
| 100 gpd | 4381.26 µL/s |