Convert UK gallons per hour to Millilitres per hour

Convert UK gallons per hour (gph) to Millilitres per hour (mL/h) instantly and accurately.

UK gallons per hour (gph)
Millilitres per hour (mL/h)

Conversion Formula

mL/h = gph × 4546.09

About UK gallons per hour

The UK gallon per hour (gph) equals 4.54609×10⁻³/3600 ≈ 1.263×10⁻⁶ m³/s, found in pre-metric British burner-nozzle ratings, oil-consumption logs for diesel generators, and ship fuel-economy records. British aviation fuel consumption was once published in UK gal/h; legacy Lloyd's Register tanker descriptions used UK gal/h for cargo pump capacities. 1 UK gph ≈ 1.263×10⁻⁶ m³/s.

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 hour (gph)Millilitres per hour (mL/h)
1 gph4546.09 mL/h
2 gph9092.18 mL/h
5 gph22730.5 mL/h
10 gph45460.9 mL/h
25 gph113652 mL/h
50 gph227305 mL/h
100 gph454609 mL/h

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