Convert Cubic inches per hour to UK gallons per minute
Convert Cubic inches per hour (in³/h) to UK gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = in³/h × 6.007750250e-5
About Cubic inches per hour
The cubic inch per hour (in³/h) equals 1.6387064×10⁻⁵/3600 ≈ 4.552×10⁻⁹ m³/s, appearing in US oilfield plunger-pump capacity datasheets and slow hydraulic-actuator specifications. It is also used in US ASTM leak-test standards where maximum allowable leakage past a valve seal is expressed in in³/h at rated pressure. 1 in³/h ≈ 4.552×10⁻⁹ m³/s.
About UK gallons per minute
The UK (imperial) gallon per minute (gpm) equals 4.54609×10⁻³/60 ≈ 7.577×10⁻⁵ m³/s, historically used in British plumbing design, pump curves, and water-treatment plant sizing. Pre-metric UK water-industry capacity tables and pump manufacturers quoted flows in UK gal/min; legacy British Standard BS EN pump curves often show both units. 1 UK gpm ≈ 7.577×10⁻⁵ m³/s ≈ 4.546 L/min.
Quick Reference Table
| Cubic inches per hour (in³/h) | UK gallons per minute (gpm) |
|---|---|
| 1 in³/h | 6.008 × 10-5 gpm |
| 2 in³/h | 0.000120155 gpm |
| 5 in³/h | 0.000300388 gpm |
| 10 in³/h | 0.000600775 gpm |
| 25 in³/h | 0.00150194 gpm |
| 50 in³/h | 0.00300388 gpm |
| 100 in³/h | 0.00600775 gpm |