Convert UK gallons per minute to Millilitres per hour
Convert UK gallons per minute (gpm) to Millilitres per hour (mL/h) instantly and accurately.
Conversion Formula
mL/h = gpm × 272765.4
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 Millilitres per hour
The millilitre per hour (mL/h) equals 10⁻⁶/3600 ≈ 2.778×10⁻¹⁰ m³/s, standard for intravenous infusion pumps in clinical medicine and for slow-release laboratory syringe pumps. A 1 L IV bag running over 8 hours is set to 125 mL/h; subcutaneous insulin pumps deliver 1-100 mL/h of dilute insulin. 1 mL/h ≈ 2.778×10⁻¹⁰ m³/s.
Quick Reference Table
| UK gallons per minute (gpm) | Millilitres per hour (mL/h) |
|---|---|
| 1 gpm | 272765 mL/h |
| 2 gpm | 545531 mL/h |
| 5 gpm | 1363830 mL/h |
| 10 gpm | 2727650 mL/h |
| 25 gpm | 6819140 mL/h |
| 50 gpm | 13638300 mL/h |
| 100 gpm | 27276500 mL/h |