Litres per hour (l/h) to Gallons per minute (gal/min) conversion

Litres per hour to Gallons per minute conversion table

Litres per hour (l/h)Gallons per minute (gal/min)
00
10.004402867539063
20.008805735078125
30.01320860261719
40.01761147015625
50.02201433769531
60.02641720523438
70.03082007277344
80.0352229403125
90.03962580785156
100.04402867539063
200.08805735078125
300.1320860261719
400.1761147015625
500.2201433769531
600.2641720523438
700.3082007277344
800.352229403125
900.3962580785156
1000.4402867539062
10004.4028675390625

How to convert litres per hour to gallons per minute?

Converting between volume flow rates like liters per hour (L/h) and gallons per minute (GPM) is a common task in various fields. Here’s how to do it.

Conversion Factors

The key to converting between these units is using the correct conversion factors. There are slight differences based on whether you are using US gallons or Imperial gallons. We'll focus on US gallons, as they're more commonly used.

  • 1 US Gallon = 3.78541 Liters
  • 1 Hour = 60 Minutes

Converting Liters per Hour to Gallons per Minute (US)

To convert from liters per hour (L/h) to US gallons per minute (GPM), use the following formula:

GPM=L/h3.78541Lgallon×60minuteshourGPM = \frac{L/h}{3.78541 \frac{L}{gallon} \times 60 \frac{minutes}{hour}}

Simplifying this gives:

GPM=L/h227.1246GPM = \frac{L/h}{227.1246}

So, to convert 1 L/h to GPM:

GPM=1227.12460.004403 GPMGPM = \frac{1}{227.1246} \approx 0.004403 \text{ GPM}

Converting Gallons per Minute (US) to Liters per Hour

To convert from US gallons per minute (GPM) to liters per hour (L/h), use the inverse of the above formula:

L/h=GPM×3.78541Lgallon×60minuteshourL/h = GPM \times 3.78541 \frac{L}{gallon} \times 60 \frac{minutes}{hour}

Simplifying this gives:

L/h=GPM×227.1246L/h = GPM \times 227.1246

So, to convert 1 GPM to L/h:

L/h=1×227.1246227.1246 L/hL/h = 1 \times 227.1246 \approx 227.1246 \text{ L/h}

Real-World Examples

  1. Watering Systems: Irrigation systems use flow rates, often measured in GPM or L/h, to determine how much water is being delivered to plants.
    • A small drip irrigation system might use 2 L/h per dripper. Converting to GPM: 2/227.12460.00882/227.1246 \approx 0.0088 GPM.
  2. Fuel Consumption: Industrial machinery or generators often have fuel consumption rates measured in liters per hour. Converting to gallons per minute helps in comparing with other equipment.
    • A generator consumes 15 L/h of diesel. Converting to GPM: 15/227.12460.06615/227.1246 \approx 0.066 GPM.
  3. Chemical Dosing: In water treatment plants or chemical processing, chemicals are often dosed at a specific volume flow rate.
    • A chemical is dosed at 0.5 GPM. Converting to L/h: 0.5×227.1246113.560.5 \times 227.1246 \approx 113.56 L/h.

Notable Figures and Laws

While there isn't a specific law or single famous person directly associated with the L/h to GPM conversion, the principles of fluid dynamics and measurement are tied to:

  • Evangelista Torricelli: An Italian physicist and mathematician, known for his work with barometers and fluid motion. Torricelli's law relates the speed of fluid flowing out of an opening to the height of fluid above the opening. While not directly about L/h to GPM, his work laid groundwork for understanding fluid flow.
  • Daniel Bernoulli: A Swiss mathematician and physicist who developed Bernoulli's principle, which relates fluid speed to pressure. This is fundamental to understanding fluid dynamics and flow rates.

Understanding these conversions and the underlying principles allows for more effective design and operation of systems involving fluid flow.

See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a list of all the Gallons per minute to other unit conversions.

What is litres per hour?

Litres per hour (L/h) is a common unit for measuring the rate at which a volume of liquid flows. Understanding its meaning and applications can be helpful in various fields.

Understanding Litres per Hour (L/h)

Litres per hour (L/h) is a unit of volume flow rate. It indicates the volume of liquid, measured in litres, that passes a specific point in one hour. In simpler terms, it tells you how many litres of a substance are moving per hour.

Formation of the Unit

The unit is formed by combining two fundamental units:

  • Litre (L): A metric unit of volume, defined as the volume of one kilogram of pure water at its maximum density (approximately 4°C).
  • Hour (h): A unit of time, equal to 60 minutes or 3600 seconds.

Therefore, 1 L/h means that one litre of a substance flows past a point in one hour.

Formula and Calculation

The flow rate (QQ) in litres per hour can be calculated using the following formula:

Q=VtQ = \frac{V}{t}

Where:

  • QQ = Flow rate (L/h)
  • VV = Volume (L)
  • tt = Time (h)

Real-World Examples

Litres per hour are used in many practical applications.

  • Water Usage: A household might use 500 L/h when all taps, showers, and appliances are running at once.
  • Medical Infusion: An IV drip might deliver medication at a rate of 0.1 L/h.
  • Fuel Consumption: A car might consume 5 L/h of fuel while idling.
  • Industrial Processes: A chemical plant might pump reactants at a rate of 2000 L/h into a reactor.
  • HVAC System: Condensate from a home air conditioner might drain at a rate of 1 L/h on a humid day.

Interesting Facts and Connections

While there isn't a specific "law" directly associated with litres per hour, the concept of flow rate is central to fluid dynamics, which is governed by laws like the Navier-Stokes equations. These equations describe the motion of viscous fluids and are fundamental in engineering and physics.

Conversion

Often, you might need to convert between L/h and other flow rate units. Here are some common conversions:

  • 1 L/h = 0.001 m3m^3/h (cubic meters per hour)
  • 1 L/h ≈ 0.264 US gallons per hour

What is Gallons Per Minute (GPM)?

Gallons per minute (GPM) is a unit of measurement that expresses the volume of a liquid that flows past a specific point in one minute. It's commonly used to quantify the rate of fluid transfer or consumption.

Understanding Gallons

A gallon is a unit of volume in the United States customary and imperial systems of measurement. There are different types of gallons, but the U.S. liquid gallon is most relevant here:

  • 1 U.S. liquid gallon = 231 cubic inches
  • 1 U.S. liquid gallon ≈ 3.785 liters

Therefore, 1 GPM is equivalent to 3.785 liters per minute.

Calculating GPM

The flow rate (Q) in GPM can be calculated using different methods, depending on the available information. Here are a couple of common scenarios:

  • From Volume and Time:

    If you know the volume (V) of liquid that flows in a specific time (t), you can calculate GPM using the following formula:

    Q=VtQ = \frac{V}{t}

    Where:

    • Q = Flow rate in gallons per minute (GPM)
    • V = Volume in gallons
    • t = Time in minutes
  • From Velocity and Area:

    If you know the average velocity (v) of the liquid flow and the cross-sectional area (A) of the pipe or channel, you can calculate GPM using the following formula:

    Q=vAQ = v \cdot A

    Where:

    • Q = Flow rate (convert to GPM using appropriate conversion factors)
    • v = Average velocity (e.g., feet per second)
    • A = Cross-sectional area (e.g., square feet)

    Conversion Factors: Remember to use appropriate conversion factors to ensure your final answer is in GPM.

Real-World Examples of GPM

  • Water Usage in Homes: Showerheads and faucets often have flow rates specified in GPM. For example, a low-flow showerhead might have a flow rate of 2.5 GPM or less.
  • Pumps: Pumps used in various applications (e.g., sump pumps, water pumps for irrigation) are often rated by their GPM capacity. A sump pump might be rated to pump 15 GPM or more.
  • Industrial Processes: In manufacturing and chemical processing, GPM is crucial for controlling the flow of liquids in pipelines, reactors, and other equipment. Specific processes might require flow rates ranging from a few GPM to hundreds or even thousands of GPM.
  • HVAC Systems: Chillers and cooling towers in HVAC systems use GPM to measure the flow rate of coolant water.
  • Irrigation: Sprinkler systems are often rated in GPM to ensure sufficient water distribution for plant growth.

Interesting Facts and Connections

  • Plumbing Codes: Plumbing codes often specify maximum allowable flow rates for fixtures (e.g., faucets, showerheads) in order to conserve water.
  • Water Conservation: Reducing GPM is a key strategy for water conservation efforts in residential, commercial, and industrial settings.
  • Hydraulic Engineering: GPM is a fundamental unit in hydraulic engineering for designing and analyzing fluid flow systems.

Additional Resources

For more information on flow rate and related concepts, refer to the following resources:

Complete Litres per hour conversion table

Enter # of Litres per hour
Convert 1 l/h to other unitsResult
Litres per hour to Cubic Millimeters per second (l/h to mm3/s)277.77777777778
Litres per hour to Cubic Centimeters per second (l/h to cm3/s)0.2777777777778
Litres per hour to Cubic Decimeters per second (l/h to dm3/s)0.0002777777777778
Litres per hour to Cubic Decimeters per minute (l/h to dm3/min)0.01666666666667
Litres per hour to Cubic Decimeters per hour (l/h to dm3/h)1
Litres per hour to Cubic Decimeters per day (l/h to dm3/d)24
Litres per hour to Cubic Decimeters per year (l/h to dm3/a)8766
Litres per hour to Millilitres per second (l/h to ml/s)0.2777777777778
Litres per hour to Centilitres per second (l/h to cl/s)0.02777777777778
Litres per hour to Decilitres per second (l/h to dl/s)0.002777777777778
Litres per hour to Litres per second (l/h to l/s)0.0002777777777778
Litres per hour to Litres per minute (l/h to l/min)0.01666666666667
Litres per hour to Litres per day (l/h to l/d)24
Litres per hour to Litres per year (l/h to l/a)8766
Litres per hour to Kilolitres per second (l/h to kl/s)2.7777777777778e-7
Litres per hour to Kilolitres per minute (l/h to kl/min)0.00001666666666667
Litres per hour to Kilolitres per hour (l/h to kl/h)0.001
Litres per hour to Cubic meters per second (l/h to m3/s)2.7777777777778e-7
Litres per hour to Cubic meters per minute (l/h to m3/min)0.00001666666666667
Litres per hour to Cubic meters per hour (l/h to m3/h)0.001
Litres per hour to Cubic meters per day (l/h to m3/d)0.024
Litres per hour to Cubic meters per year (l/h to m3/a)8.766
Litres per hour to Cubic kilometers per second (l/h to km3/s)2.7777777777778e-16
Litres per hour to Teaspoons per second (l/h to tsp/s)0.0563567045
Litres per hour to Tablespoons per second (l/h to Tbs/s)0.01878556816667
Litres per hour to Cubic inches per second (l/h to in3/s)0.01695111815945
Litres per hour to Cubic inches per minute (l/h to in3/min)1.0170670895671
Litres per hour to Cubic inches per hour (l/h to in3/h)61.024025374023
Litres per hour to Fluid Ounces per second (l/h to fl-oz/s)0.009392784083333
Litres per hour to Fluid Ounces per minute (l/h to fl-oz/min)0.563567045
Litres per hour to Fluid Ounces per hour (l/h to fl-oz/h)33.8140227
Litres per hour to Cups per second (l/h to cup/s)0.001174098010417
Litres per hour to Pints per second (l/h to pnt/s)0.0005870490052083
Litres per hour to Pints per minute (l/h to pnt/min)0.0352229403125
Litres per hour to Pints per hour (l/h to pnt/h)2.11337641875
Litres per hour to Quarts per second (l/h to qt/s)0.0002935245026042
Litres per hour to Gallons per second (l/h to gal/s)0.00007338112565104
Litres per hour to Gallons per minute (l/h to gal/min)0.004402867539063
Litres per hour to Gallons per hour (l/h to gal/h)0.2641720523438
Litres per hour to Cubic feet per second (l/h to ft3/s)0.000009809634700287
Litres per hour to Cubic feet per minute (l/h to ft3/min)0.0005885780820172
Litres per hour to Cubic feet per hour (l/h to ft3/h)0.03531468492103
Litres per hour to Cubic yards per second (l/h to yd3/s)3.6331926968299e-7
Litres per hour to Cubic yards per minute (l/h to yd3/min)0.00002179915618098
Litres per hour to Cubic yards per hour (l/h to yd3/h)0.001307949370859

Volume flow rate conversions