Convert US gallons per minute to Kilolitres per second

Convert US gallons per minute (gpm) to Kilolitres per second (kL/s) instantly and accurately.

US gallons per minute (gpm)
Kilolitres per second (kL/s)

Conversion Formula

kL/s = gpm × 6.309019640e-5

About US gallons per minute

The US gallon per minute (gpm) equals 3.785411784×10⁻³/60 ≈ 6.309×10⁻⁵ m³/s, the dominant volumetric flow unit in US plumbing, HVAC, and water-treatment industries. EPA showerhead standards are set at 2.5 gpm; residential water meters size at 3/4"-1" for 5-20 gpm; municipal water-distribution design uses hundreds to thousands of gpm. 1 gpm ≈ 6.309×10⁻⁵ m³/s = 3.785 L/min.

About Kilolitres per second

The kilolitre per second (kL/s) equals 1 m³/s, so 1 kL/s is identical to 1 m³/s. The term kilolitre is favoured in Australian and South African engineering over the equivalent cubic metre per second. Municipal water-main flow and stormwater-channel capacity are sometimes expressed in kL/s in these countries. 1 kL/s = 1 m³/s = 1 000 L/s ≈ 15 850 US gal/min.

Quick Reference Table

US gallons per minute (gpm)Kilolitres per second (kL/s)
1 gpm6.309 × 10-5 kL/s
2 gpm0.00012618 kL/s
5 gpm0.000315451 kL/s
10 gpm0.000630902 kL/s
25 gpm0.00157725 kL/s
50 gpm0.00315451 kL/s
100 gpm0.00630902 kL/s

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