Convert US gallons per day to Cubic inches per minute
Convert US gallons per day (gpd) to Cubic inches per minute (in³/min) instantly and accurately.
Conversion Formula
in³/min = gpd × 0.1604166667
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 Cubic inches per minute
The cubic inch per minute (in³/min) equals 1.6387064×10⁻⁵/60 ≈ 2.731×10⁻⁷ m³/s, common in US pneumatic and hydraulic circuit design. Air-tool consumption is rated in SCIM (standard cubic inches per minute); small hydraulic cylinders advancing at 10 in/min with 1 in² bore consume 10 in³/min: exactly 0.163 mL/s. 1 in³/min ≈ 2.731×10⁻⁷ m³/s.
Quick Reference Table
| US gallons per day (gpd) | Cubic inches per minute (in³/min) |
|---|---|
| 1 gpd | 0.160417 in³/min |
| 2 gpd | 0.320833 in³/min |
| 5 gpd | 0.802083 in³/min |
| 10 gpd | 1.60417 in³/min |
| 25 gpd | 4.01042 in³/min |
| 50 gpd | 8.02083 in³/min |
| 100 gpd | 16.0417 in³/min |