Average GPM Of A Garden Hose – A Comprehensive Guide To Understanding Water Hoses

Would you like to know what is the Average GPM of a Garden Hose? If so, then this blog post is aimed at you! We have put together all the relevant information to meet your gardening needs. Aside from that, knowing what flow rate your hose pushes out is essential if you want to use it for several tasks.

Garden hoses are a great asset to both homeowners and avid gardeners. It makes the job of cleaning and watering your plants much easier than you would with a bucket or a can. There are several hoses available on the market that you can choose from to meet your application needs.

These include hoses made from a variety of materials like rubber, metal, and PVC amongst others. The tips in this article will help you learn the efficiency of garden hoses as well as understand how they work. Have a look at the information below to learn more about these handy tools.

What Does A Garden Hose GPM Mean?

When it comes to garden hoses, it is essential to learn about how they work. Seeing that there are several types of hoses to choose from, knowing their differences is important. It is also vital to look at the hose diameter and length as it is a good indicator of the GPM that it pushes out.

 How do you convert PSI to GPM?

Garden Hose Gallons Per Minute (GPM) is an indication of the flow rate of your hose. This is a calculation of the amount of water that runs through the hose every minute. However, calculating it accurately will depend on a few factors.

These include the hose length, diameter, and water pressure level. Depending on the type of garden hose you have, typically, the flow rate is around 10 to 15 gallons per minute. Let’s have a look at the average GPM of a garden hose below.

What is the Average GPM of a Garden Hose?

Calculating the average GPM of a garden hose is quite simple. However, it does require the correct information if you want to determine the exact flow rate. There are also several ways to measure the flow rate of your hose.

These include using an online garden hose flow rate calculator or doing the calculations manually. The manual task is a bit time-consuming compared to a calculator but they both work well when measuring GPM. The average flow rate of a garden hose is anything between 12 and 19 gallons per minute.

However, this would depend on the hose diameter and length. A bigger diameter will enhance the GPM substantially while a longer length would slow down the flow rate. So, you should make sure that you buy a hose that is suitable for your application.

If you are going to calculate your garden hose GPM manually then it is important to keep track of how long it takes to fill a 5-gallon bucket. If it takes 5 minutes, then you know that the flow rate is a gallon per minute. Watch the next video for a visual of how it’s done automatically.

What Does The Hose Diameter Have In Common With The Flow Rate?

When it comes to the flow rate, the diameter of the hose plays a big part. This s because the size of the output end would be a part of the equation when calculating GPM. What I mean is that a 3/4 hose will have a higher flow rate than a 5/8 hose because the 3/4 hose has a larger diameter.

The hose diameter and flow rate have this in common because they work hand in hand when it comes to water output. However, the length of the hose is also an important factor as the longer the hose, the less enhanced the average GPM of the garden hose would be.

Water pressure also contributes to the flow rate, so, depending on how much you have opened your faucet; the GPM reading may vary. Also, commercial garden hoses usually come with a pounds per square inch or PSI rating. This rating is to help you determine the speed of the water flow that passes through the hose.

What are the Benefits of Using a Garden Hose?

Avid gardeners and homeowners are aware of the benefits of using a garden hose. Not only is it an efficient tool to have around, but it makes the task of maintaining your garden and yard much easier.

Knowing the average GPM of a garden hose is essential, especially if you want to use it for different applications. Listed below are a few other benefits that you should take note of!

 How many GPM is a 5'8 garden hose?


  • Garden hoses make the job of maintaining your plants and yard easier.
  • It can be used to wash your car.
  • It can be used to fill or drain your pool.
  • A garden hose is inexpensive.
  • There are various types of garden hoses available on the market.
  • There are various storage options for garden hoses.
  • It eliminates the hassle of transporting water in a bucket or watering can.
  • There are various attachments that can be used to enhance the performance of a garden hose.
  • They are easy to repair.
  • You can choose from water hoses that have high and low flow rates.


It is essential to learn about the average GPM of a garden hose especially if you make use of one regularly. This will give you an idea about what application your hose is best for and will avoid damage to fragile plants.

There are several factors that can affect hose GPM. These include the water pressure, hose diameter, hose length, and whether you’re sharing the water supply. Regular garden hoses usually come in 1/2’’, 5/8’’, or 3/4’’ sizes. This indicates the measurement of the hose diameter. Remember, the larger the diameter, the more enhanced the GPM.

Water pressure is determined by a garden hose PSI or pounds per square inch rating. This indicates the speed of the water that flows through your hose. If your hose is overly long, this can decrease the flow rate as the water has to travel a longer distance to reach the output.

Here’s a link with more information on garden hose flow rates. 

 How many GPM is a shower?


How many GPM is a 5'8 garden hose?

Depending on the length of a hose and the speed of the water flow, a 5’8 garden hose can gush out between 10 to 15 GPM.

How many GPM is a shower?

A shower usually measures 2.5 GPM.

How do you convert PSI to GPM?

To calculate the PSI, subtract the output water pressure amount from the internal pressure amount to get the first answer. E.g., 70 – 20 = 50 PSI. Thereafter, to convert PSI to GPM, multiply the answer by 144. In other words, calculate 50PSI x 144 to get the result.

What is the difference between PSI and GPM?

The difference between PSI and GPM is that Pounds per square inch (PSI) measures water pressure whereas Gallons per minute (GPM) measures the flow rate.