🚿 gal/h to L/min — Gallon/Hour (US) to Liter/Minute Converter

Convert flow rate units — m³/s, L/s, L/min, ft³/s, gallon/min and more.

1 unit =
From
To
Formula 1 gal/h = 0.06309 L/min
UnitNameValue
m³/s Cubic Meter/Second 0.0000010515
m³/min Cubic Meter/Minute 0.000063088738
m³/h Cubic Meter/Hour 0.0037823741
L/s Liter/Second 0.0010515
L/min Liter/Minute 0.063088738
ft³/s Cubic Foot/Second 0.000037133171
ft³/min Cubic Foot/Minute 0.0022277542
gal/min Gallon/Minute (US) 0.016666667

Quick Answer

Formula: L/min = gal/h × 0.06309

Multiply any gal/h value by 0.06309 to get L/min.

Reverse: gal/h = L/min × 15.85

Worked Examples

0.001 gal/h
0.001 gal/h × 0.06309 = 6.3090e-5 L/min
Small flow.
0.01 gal/h
0.01 gal/h × 0.06309 = 0.0006309 L/min
Medium small flow.
1 gal/h
1 gal/h × 0.06309 = 0.06309 L/min
1 unit reference.
10 gal/h
10 gal/h × 0.06309 = 0.6309 L/min
Large flow.

gal/h to L/min Conversion Table

Common flow rate values — factor: 1 gal/h = 0.06309 L/min

gal/h (gal/h)L/min (L/min)Context
0.1 gal/h0.006309 L/minDrip
1 gal/h0.06309 L/minSlow drip 1 gal/h
5 gal/h0.3155 L/minDripping faucet
10 gal/h0.6309 L/minFuel consumption
50 gal/h3.155 L/minWater softener
100 gal/h6.309 L/minPool fill
500 gal/h31.55 L/minSmall pump
1000 gal/h63.09 L/minIrrigation
5000 gal/h315.5 L/minCommercial
1e+04 gal/h630.9 L/minLarge system
5e+04 gal/h3155 L/minIndustrial
1e+05 gal/h6309 L/minVery large
1e+06 gal/h6.309e+04 L/minRiver scale
1e+07 gal/h6.309e+05 L/minLarge river
1e+08 gal/h6.309e+06 L/minMax

Mental Math Tricks

Exact factor

1 gal/h = 0.06309 L/min.

Unit chain

m³/s × 1000 = L/s × 60 = L/min. Use this chain for quick conversions.

Reverse

Multiply result by 15.85 to recover the original gal/h value.

Who Uses This Conversion?

Hydraulic Engineer

Designs pumps, pipes, and water distribution systems with flow rates in m³/s, L/s, and GPM.

HVAC Engineer

Specifies air handling units and ductwork in CFM (ft³/min) and m³/h for North American and European projects.

Water Treatment Plant Operator

Monitors and controls treatment processes with flow rates in m³/h, L/s, and MGD.

Fire Protection Engineer

Designs sprinkler systems with required flows in GPM and L/min per NFPA standards.

Hydrologist

Measures river and groundwater flows in m³/s (m) and ft³/s (cfs) for flood modeling and water resource planning.

Medical Equipment Technician

Configures ventilators and oxygen delivery systems with flow rates specified in L/min.

Frequently Asked Questions

About gal/h and L/min

gal/h (gal/h)

Gallons per hour (gal/h) is used for slower flow rates such as fuel consumption, slow drip irrigation, and residential water softeners. One gal/h = 1.0514 × 10⁻⁶ m³/s ≈ 0.0631 L/min.

Vehicle fuel consumption at highway speeds is typically 2–8 gal/h for gasoline engines. Water softeners regenerate at 0.5–2 gal/h. Fuel oil burners for home heating consume 0.7–3 gal/h depending on output.

Interesting fact: A dripping faucet (one drip per second) wastes about 3,000 gallons per year — roughly 0.34 gal/h. A running toilet can waste 200 gal/h, adding up to nearly 2 million gallons over a year if unrepaired.

L/min (L/min)

Liters per minute (L/min) is the standard flow unit in medicine, laboratory equipment, gas regulators, and small pump specifications. It is the most practical scale for flows measured in minutes.

Medical oxygen is prescribed in L/min (1–15 L/min depending on condition). IV drip rates are controlled in mL/min (0.001–1 L/min). Laboratory peristaltic pumps are rated in L/min. Vehicle fuel consumption during testing is measured in L/min.

Interesting fact: A healthy adult kidney filters about 120 mL/min (0.12 L/min) of blood through the glomerulus — this glomerular filtration rate (GFR) is a key indicator of kidney function and decreases with age and disease.

About gal/h to L/min Conversion

Converting gal/h to L/min is essential across hydraulic engineering, HVAC, water treatment, fire protection, and medicine. SI units (m³/s, L/s) are standard in science; European engineering uses m³/h; US systems use GPM and CFM; medical applications use L/min.

Quick reference: 10 gal/h = 0.6309 L/min. Reverse: 1 L/min = 15.85 gal/h. Factor: 1 gal/h = 0.06309 L/min.

All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.