Convert US quarts per second to US gallons per day
Convert US quarts per second (qt/s) to US gallons per day (gpd) instantly and accurately.
Conversion Formula
gpd = qt/s × 21600
About US quarts per second
The US quart per second (qt/s) equals 3.785411784×10⁻³/4 ≈ 9.464×10⁻⁴ m³/s, used in US industrial filling lines handling quart-size containers (motor oil, paint, sauce). A high-speed filling machine loading 1 qt bottles at 4 per second processes 4 qt/s per nozzle. 1 US qt/s ≈ 9.464×10⁻⁴ m³/s = 0.9464 L/s.
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.
Quick Reference Table
| US quarts per second (qt/s) | US gallons per day (gpd) |
|---|---|
| 1 qt/s | 21600 gpd |
| 2 qt/s | 43200 gpd |
| 5 qt/s | 108000 gpd |
| 10 qt/s | 216000 gpd |
| 25 qt/s | 540000 gpd |
| 50 qt/s | 1080000 gpd |
| 100 qt/s | 2160000 gpd |