Convert US gallons per second to Millilitres per hour

Convert US gallons per second (gal/s) to Millilitres per hour (mL/h) instantly and accurately.

US gallons per second (gal/s)
Millilitres per hour (mL/h)

Conversion Formula

mL/h = gal/s × 13627482.42

About US gallons per second

The US gallon per second (gal/s) equals 3.785411784×10⁻³ m³/s, used for very large pump discharge rates and fire-suppression deluge systems. A large centrifugal fire pump rated 1 500 US gal/min delivers exactly 25 US gal/s; industrial cooling-tower makeup lines are sized in gal/s at peak demand. 1 US gal/s = 3.785411784×10⁻³ m³/s = 60 US gal/min ≈ 227.1 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

US gallons per second (gal/s)Millilitres per hour (mL/h)
1 gal/s13627500 mL/h
2 gal/s27255000 mL/h
5 gal/s68137400 mL/h
10 gal/s136275000 mL/h
25 gal/s340687000 mL/h
50 gal/s681374000 mL/h
100 gal/s1.363 × 109 mL/h

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