Convert UK gallons per minute to Cubic inches per second
Convert UK gallons per minute (gpm) to Cubic inches per second (in³/s) instantly and accurately.
Conversion Formula
in³/s = gpm × 4.623657213
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.
About Cubic inches per second
The cubic inch per second (in³/s) equals 1.6387064×10⁻⁵ m³/s, used in US automotive engineering for engine displacement sweep rate, fuel-injector calibration, and hydraulic actuator speed specifications. An engine injector delivering 15 in³/s of fuel corresponds to roughly 15.5 mL/s; hydraulic jacks in US equipment are rated in in³/s at operating pressure. 1 in³/s ≈ 1.639×10⁻⁵ m³/s = 0.016387 L/s.
Quick Reference Table
| UK gallons per minute (gpm) | Cubic inches per second (in³/s) |
|---|---|
| 1 gpm | 4.62366 in³/s |
| 2 gpm | 9.24731 in³/s |
| 5 gpm | 23.1183 in³/s |
| 10 gpm | 46.2366 in³/s |
| 25 gpm | 115.591 in³/s |
| 50 gpm | 231.183 in³/s |
| 100 gpm | 462.366 in³/s |