How Many Decibels Is A Circular Saw?

No matter what you’re using it for, a circular saw is a powerful tool. When you’re using it correctly, it can help you quickly and easily cut through wood. However, there’s a lot of power behind that blade, and it’s important to know how to use it safely. One of the most important things to remember is the noise level of a circular saw. In this blog post, we’ll talk about how loud a circular saw can be and what you can do to protect your ears. We’ll also share some tips on how to stay safe when using this tool. Keep reading for more information! 

How loud is a circular saw?

A circular saw is a power tool, which means it uses electricity to operate. A power tool can make any number of sounds, but most people are familiar with the sound of the engine running and the blade spinning. We’ll focus on those two things here. 

The noise level of an operating circular saw is anywhere from 80 to 100 decibels, according to the National Institute of Occupational Safety and Health (NIOSH). To put that in perspective, prolonged exposure to anything over 80 decibels has been identified as potentially dangerous. It’s important not to expose yourself or anyone else you’re with to such loud sounds for extended periods of time. 

On top of the possible long-term damage, an unmuffled circular saw can cause immediate hearing loss if someone is exposed to it for too long. If you are using a circular saw on your own, make sure you wear ear protection at all times. Not only will this help protect your ears from high noise levels, but it helps block out other sounds so you can focus solely on what’s happening around the circular saw. 

This tool is loud enough that it can be difficult to hear someone talking or even standing next to you. If you’re not wearing ear protection, consider asking your friends to give you hand signals so you don’t have to remove your earplugs to hear them. 

What are common noise levels for a circular saw?

The United States Department of Labor has set standards for noise exposure during work hours in an effort to reduce risks associated with prolonged exposure. According to their standards, the acceptable daily noise level is 90 decibels. 

If the average person was exposed full-time at that level, they would experience hearing damage after about four months. Unfortunately, it’s easy for that number (especially the lower one of 80 decibels) to be misunderstood. These are just averages, and it’s impossible to get any meaningful data without knowing more about an individual’s exposure. 

How can you reduce the noise level of a circular saw?

The first step in reducing your noise exposure with a circular saw is making sure it has good muffler guards installed on the machine itself. They’re designed specifically for this purpose, so they’ll fit securely and prevent most of your blade’s sound energy from escaping into the air around you. There are several benefits of using muffs rather than earplugs or earmuffs alone.

  1. You can’t forget them
  2. When working by yourself, they protect both ears
  3. They don’t interfere with your ability to hear what’s around you
  4. They’re more environmentally friendly.

Things to consider when using power tools

There are a few other things that can help lower the noise level of a circular saw

  1. Blade size and type (thinner blades tend to be noisier than thicker ones)
  2. Depth of cut (the deeper you cut, the noisier it will be)
  3. Distance from the source (the further away you stand, the less sound energy is impacted by your body)
  4. Where you’re cutting (wood is naturally absorptive while metal reflects sound).
  5. Stay safe while using power tools! The risk of hearing damage isn’t the only thing you should worry about. A circular saw can cause severe bodily harm to those nearby if it kicks back or starts binding during operation. It’s important to know what might lead up to these issues, as well as how they could be prevented. In addition, a poorly maintained power tool creates an even greater risk for injury. So if your saw is acting up, don’t try fixing it on your own!

As you may have noticed from reading this article, there are several moving parts that have the potential for danger when a circular saw malfunctions. Make sure you’re aware of all safety precautions before attempting any type of repair to your circular saw. If in doubt, just take it to a local professional to get it serviced.

Is it safe to use a circular saw without hearing protection?

Yes. If you’re using a circular saw for its intended purposes, the sound levels are considered to be within the acceptable daily exposure levels set by OSHA. 

This is why it’s important to wear earmuffs when cutting metal with this tool; these materials reflect sound energy and can cause more damage than wood at similar noise levels. But as long as you limit your exposure time (ideally don’t use a circular saw if anyone else is nearby), there should be minimal risk of damaging your hearing. 


A circular saw blade can last up to an hour of use before needing replacement. Circular blades are often used in construction, carpentry, and other woodworking jobs that require a power tool with high cutting speeds. With all this time spent using the saw on your project, it is important to know how long they typically last so you don’t have any surprises when trying to finish your work!