What Size Speakers Are In My Car?

Having the right audio system and set of car speakers in your car is super important. Most people are not consciously aware of it but this vehicle feature bears a lot of weight in the overall driving experience. Having the right speakers is not simply about the type, quality, and number but also size.

If you are considering giving your set of wheels a do-it-yourself audio make-over, one of the most important things that you need to understand is the different sizes of speakers that are out there and which ones are the best for your car. Below is a simple beginner’s guide to different speaker sizes and their implications.

How do I find out what size speakers are in my car?

Step one in the DIY speaker installment is finding out what size speakers fit in your car. This lets you know what to look out for when you go shopping in terms of the size of the speakers themselves and related accessories such as speaker boards, mounting boards, and additional aesthetic rims. There are many ways of figuring this out but below are five of the most common and simplest methods.

Take actual measurements

This is by far the most straightforward way to find out what car speakers will fit your ride. Take and record measurements of the existing speakers that you wish to replace and find speaker sizes in the market that can fit the space perfectly. You can also take measurements of available space where the new speakers that you wish to install are much larger than the ones already there.

Measurement markers on inbuilt speaker brackets

More often than not, speaker slots have markers indicating the best-fit speakers for each speaker location. This makes it a whole lot easier to figure out which speakers can fit your car. However, not all cars have inbuilt speaker boards or speaker size markers and this limits the use of this method to specific models.

Online tools

Use of online tools is more or less foolproof. An online speaker size tool is basically a database containing information on specific speaker size recommendations for different car models. All you have to do is enter your car model details and voila! You have yourself a list of suitable car speaker sizes to choose from.

As described above, online tools help you figure out which speakers can fit your car using the model features and specifications. The tools also help you test the speakers you have for balance, clarity and other functions. Below is one of the best on the internet. This is in terms of accuracy; variety recommended and ease of use: Online Car Stereo or Car Toys fit guide.

Consult your car manual

The information on the speaker size compatibility for your car can also be found under the audio systems section of your car user manual. This is usually an accurate measure of the sizes of the speakers that came already installed on the car. They act as a guideline for you to figure out whether the system is expandable or not and what other sizes you can try out. Also, you can find a soft copy of your car manual online to consult if you find yourself having some trouble with your DIY project.

Trial and error

Finally, you could always try the good old fashioned trial and error method. This is where you try out several different sizes on the car until you find what fits best. This method is obviously very tiresome but can prove advantageous by exposing you to amazing new speaker sizes and combinations that have not been tried before but actually work.

Other methods of finding out speaker size

Sometimes, no matter how much you try to understand the speaker sizes and sound system in your car, you find yourself having an exceptionally hard time. In such a case it would be wise to seek the advice of a professional. Take a trip to your local auto body shop and get some help to ensure that you have the sound system of your dreams in your car.

How many car speaker sizes are there?

Depending on what your car can handle and what you are looking for in specific, there is a lot to choose from in terms of car speaker sizes. Below is a list of the most common and the most popular speaker categories in terms of size out there and what they have to offer you through your sound system.

Subwoofers and woofers

If you are looking for speakers that will literally make your car rock then subwoofers and woofers are the sizes to look for. They range in size from between 8 inches to 15 inches with the sound range and bass power increasing with size. They do, however, take up quite a lot of space so you need to make sure you have space before you go shopping. Read more

6” by 9” inch car speakers

This is a great choice for you if you want amazing sound range without blowing your ears out. They are considerably smaller than the woofers and subwoofers but still consume a lot of space which is something to consider. Read more

5” by 7” inch car speakers

This speaker size category offers you a wide sound range with amazing clarity. The size is fairly reasonable and can fit a wide variety of vehicle models. The only disadvantage is that they use specific ports and without the proper adaptation cannot be used on all vehicle models.

6.5” inch car speakers

This is your basic run-of-the-mill speaker size. It is what is found in most vehicles and offers a wide sound range. They are the most versatile given their ability to fit almost all cars. Read more


These tiny totters fall within the 1” to 2” speaker size range. They are amazing support sound speakers that perfectly complement car audio systems without stealing the show. Check out best tweeters for car audio.


After all, is said and done, all you need to do is make sure that you understand the speaker size that your car can handle and the sound quality that you want. With that info, strike a balance and enjoy your audio system like you never have before.

Vincent Talbot