Leaf Blower CFM vs MPH: Explained Everything!

(Last Updated On: August 18, 2022)

Which is more important in a Leaf Blower CFM or MPH? Don’t blow your peace away thinking about your leaf blower, as we’re here today, presenting the differences between Leaf Blower CFM vs MPH. Whatever, it’s a battery-operated blower or electric.

However, The answer to your question is not going to be just one word; rather, it’s a bit complicated. You’ll see what we mean further into the article!

What is CFM on Leaf Blowers?

You might have come across the term CFM before, so it basically stands for cubic feet per minute. It’s a measurement of volume, and in a leaf blower, it technically means how much air is propelled out of the leaf blower over a minute.

For context, a 250 CFM device will push out two hundred and fifty cubic ft of air per minute.

What is a Good CFM for a Leaf Blower?

The CFM of a leaf blower shows how much power it has to move stuff around. So, leaf blowers with larger CFM ratings will generate more power than the ones with a smaller CFM rating. The CFM that will be good for you widely depends on the size of your backyard and how heavy the work you are doing.

A leaf blower with a 500+ CFM rating can move a heap of fronds and even tiny rocks while an 800 CFM rating leaf blower will allow you to move small rocks and even some sticks.

It’s important to stay cautious and safe when you are using a high CFM rating leaf blower with people around you. Generally, the range that will be considered good for a handheld device is 350-600 CFM. It should be ample to get ordinary tasks done with ease.

For an average-sized backyard, a 200-400 CFM rating electric leaf blower would be plenty for you.

However, if your backyard is any more than a half-acre you will need to grab a 400-700 CFM rating leaf blower. These create more noise, but on the upper hand, they are quite a bit more powerful, allowing you to clear out dry and also wet debris.

On the other hand, if you’re working on a huge commercial space, then you will have to get something more powerful than 1000 CFM.

What is MPH on a Leaf Blower?

MPH stands for miles per hour, and it is one of the most common measurements of speed. It is used for car speed, wind speed, and anywhere with speed, universally. We are certain that you know what it means, but still, we’ll break it down for you.

MPH means how many miles something will go if it moves at that steady rate for an hour. Just like the example with CFM, air pushed out at 200MPH means that the gush of air is pushed at a distance of 200 miles away in an hour if the speed is maintained.

What is the Difference Between Leaf Blower CFM vs MPH?

CFM and MPH aren’t synonyms for the same term; in fact, they’re quite different from each other. CFM has more to do with power, and MPH is entirely about speed.

Air moving at a high velocity can instantly lead you to believe that it also has high power. Although high-speed air most of the time has higher power, that doesn’t need to be the case always. They are not correlated.

Do not make the mistake of buying a high MPH leaf blower and automatically assuming that it’ll be very strong, that’s just not how it works. A leaf blower with low MPH can be stronger than one with double the MPH rating; it all depends on the CFM rating.

If you’re looking to move away from a large volume of leaves and debris, then you should definitely opt for a high CFM rating leaf blower.

Do keep in mind though that the highest CFM leaf blower will be larger and noticeably heavier than your regular ones. To get your work done in half the time, you would have to trade off your comfort.

With saying all that, do not think you’ll be fine with 10,000 CFM, and only 15 MPH. CFM is more about power than MPH, but you also need speed to move away from all that junk. There needs to be a good balance between both for you to achieve satisfactory results.

The real question that stands is what is the perfect measure you should be looking for? Or is there even a perfect balance?

The question to that answer is a big ‘YES‘.

More understanding of leaf blower CFM and mph- let’s watch this video

Anyways,  when we are talking about power and force systems we should know the basics of Newton’s law!


What is Newton’s Force?

When you’re down in the store and comparing blowers, you should simply be looking at the Newton force to make your life easier. So, it’s basically a combination of both CFM and MPH. The effects of these are actually put into a single measurement, allowing you to understand how much force it creates.

Tests have provided results that show blowers that are cordless produce force ranging from about 9-16 NM (NM- Newton Metres), while the larger and more powerful ones produce a force in the range of 29-38 NM.

The measurement of Newton’s force really removes all your headaches because it’s just that simple to get into your head. The bigger the Newton force, the better it will get your chores done.

Keep in mind though, that just buying a device with a high Newton force will not get you the best results, you must also follow proper techniques of leaf blowing.

Let’s, read out something crazy science or you may call it off-topic: About Force and Acceleration Experiment: (may you skip this if you know already)


  • Experimental objective
    – Will verify Newton’s second law of motion.
  • Learning objectives (students should learn…)
    – The significance and use of Newton’s second law of motion
    – To interpret physical meaning from graphs

Equipment list:
Airtrack (track, shuttle, spring/pulley assembly, blower), string, slotted weights, 5g mass hanger, 2
photogates w/ stands, computer interface

Force And Aacceleration Experiment

Newton’s 2nd law of motion – Newton’s Laws of motion- has been a long-standing standard for examining
mechanics in classical situations. The second law in particular is of great use and importance.

You probably recognize this law in the form F=ma (force is the product of mass times acceleration), but
Newton himself stated “A change in motion is proportional to the motive force impressed and takes place
along the straight line in which that force is impressed (Philosophiae Naturalis Principia Mathematica).”

Mathematically, this law is generally expressed as the force being the time derivative of momentum. But then
where does this F= ma come from?

To answer that, we start with the momentum formulation,

Relationship Between Force And Acceleration

(Source: Google.com and Wikipedia)

Are you still interested? For more, You may read this PDF about Force and Acceleration on an Airtrack. And How it works!

Back to Topic: Leaf Blower CFM vs MPH System and Appropriate Choosing!

Which One Appropriate for My Yards?

What’s right for your yard depends on the size of it, and it also largely depends on how much your wallet can give. Price plays a key role when it comes to buying anything, so consider all the things and make sure you get good value for money.

It would be a bit smart of you if you could snatch a high CFM blower within your budget while making sure you have just the features that you need, and it’s not too heavy for you to get the work done.

Final Words

If you say that you’re confused amidst the war between leaf blower CFM and MPH, then trust us, you are not the only one. This is why we would advise you to pay more attention to the Newton force generated by the blower.

We hope we could make your life a bit easier with the information we have provided. Do not be overwhelmed by too many specifications when you’re making your choice; that way, things will only look worse.

All you need to do is just check if the blower you’re buying is worth your money and if it’s suitable for the size of your yard. Ultimately, we are telling you that the more important thing is not CFM, not MPH, it’s Newton force.

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Mitchel Shawn was a Co-worker and Engineer of a Gardening Tool manufacturing company since 2013 and a passionate researcher on Machinery goods. Picking the right tools for your work-station and making life easier is an untold helping journey by SHAWN. With this Reviewer Guides Blog, you'll definitely get help in revealing the accurate product spec which actually helps in real life works.