Are you seeing an allowed memory size exhausted error message in WordPress?
This is one of the most common WordPress errors, and you can easily fix it by increasing the PHP memory limit in WordPress.
In this article, we will show you how to fix the WordPress memory exhausted error by increasing the PHP memory limit.
What Is the WordPress Memory Exhausted Error?
WordPress is written in PHP, which is a server-side programming language. Additionally, every website needs a WordPress hosting server for it to function properly.
Web servers are just like any other computer. They need a certain amount of memory to efficiently run multiple applications at the same time. Server administrators allocate specific memory sizes to different applications, including PHP.
When your WordPress code requires more memory than the default allocated memory, you will see this error message:
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2348617 bytes) in /home4/xxx/public_html/wp-includes/plugin.php on line xxx
Your WordPress site may be exhausting its server memory if it has:
- A lot of images, videos, and other types of media
- Plenty of unused WordPress plugins
- Outgrown its hosting plan resources
By default, WordPress automatically tries to increase the PHP memory limit if it is less than 64MB. However, 64MB is often not high enough.
Having said that, let’s see how to easily increase the PHP memory limit in WordPress to avoid the memory exhausted error.
How to Increase the PHP Memory Limit in WordPress
There are several ways to increase the PHP memory limit. One is to edit the wp-config.php file, another is to tweak the .htaccess file, and the last method is to check the php.ini file.
Let’s go through each one:
Editing the wp-config.php File
First, you need to edit the wp-config.php file on your WordPress site. It is one of the core WordPress files located in your WordPress site’s root directory, usually named public_html.
You will need to use an FTP client like FileZilla or file manager in your web hosting control panel.
Next, you need to paste the following line in the wp-config.php file just before the one that says, That's all, stop editing! Happy blogging.
define( 'WP_MEMORY_LIMIT', '256M' );
This code tells WordPress to increase the PHP memory limit to 256MB.
For more details, see our step-by-step guide on how to find and edit the wp-config.php file.
Once you are done, you need to save your changes and upload your wp-config.php file back to your server.
You can now visit your WordPress site, and the memory exhausted error should have disappeared.
Editing the .htaccess File
The next method is to edit the .htaccess file. This file is also located in the WordPress website’s root folder.
Here, you need to paste the following code before the line that says #END WORDPRESS.
php_value memory_limit 256M
Similar to the previous code, it will tell WordPress to increase the PHP memory limit to 256MB.p
After that, simply save your changes and upload the file back to your web server. You can now open your WordPress website again to see if the memory limit error has gone.
If you can’t find the .htaccess file, check out our guide on why the .htaccess file may be missing and how to find it.
Checking Your php.ini File
If the above methods don’t work, you may want to look at your php.ini file.
php.ini is a file that controls your PHP settings, including the PHP version and PHP scripts. It’s not a WordPress core file, as your hosting provider usually manages it.
You can check its code to see your PHP memory usage limit. For more details, you can see our guide on how to find and edit the php.ini file.
However, because this is an advanced method, we recommend contacting your web hosting provider’s support team instead to see if they can increase the WordPress memory limit manually. Otherwise, this can result in further errors.
We hope this article helped you solve the WordPress memory exhausted error by increasing the PHP memory limit. You may also want to see our step-by-step beginner’s guide to troubleshooting WordPress errors, along with our expert picks for the best WordPress plugins to grow your site.
If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook.
WPBeginner Support says
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Admin
Nilanjan Roy says
That fixed my issue too
Thanks a lot 
Alasdair MacNeill says
This fixed my issue – thank you for the advice!
Momodu Oladapo Ibraheem says
Thanks works for me!!! Your site has been a source of refuge always for WP
Joshua says
Great article, i encountered this problem when i installed a new wordpress theme. While you have accurately told us how to solve this problem, i’m thinking what is the impact of having a website that runs on high php memory on web hosting resources, etc?
Many thanks.
WPBeginner Support says
Hey Joshua,
It depends. If you are on shared hosting and your website is continuously using more memory than it should, then your web host will automatically kill that particular process.
Admin
Aaron Silva says
Thanks a lot! it worked!!!!!
Olayika Olumayokun says
Thanks so much for this type of post, really helped.
Waqas Gulraiz says
Worked! thanks
Nicole says
I always forget how to fix this error when I encounter it. Luckily I found your post, and it worked like a charm. Panic mode is now over. Thank you!
Laercio says
I had to edit php.ini and increase memory_limit from 64M to 256. It worked fine!
Daniel says
Updating the php.ini file from 32M to 64M worked for me! Thanks!
Roger says
Thank you, this helped me a lot!
Cole Ryan says
Simple. Effective. Thank you.
Jos Schuurmans says
Thanks for the tut, good stuff!
QUESTION: After increasing from the default 64M to 256M, my white screen disappeared and the site is up. Is there a reason to scale down the memory again?
Cheers,
Jos
WPBeginner Support says
No, you can continue using the new memory limit.
Admin
Chris says
Today is the second time that I’ve needed to refer to this post (bad memory – much like my site).
Great info, keep up the fantastic work.
Nathalie says
God bless you guys!!!
Luiz says
Thank you, this article helped me a lot!
Arjuna says
Hi!
How can I mixed this error?
Fatal error: Allowed memory size of 176160768 bytes exhausted (tried to allocate 78 bytes) in /home/brandkpl/public_html/wp-includes/taxonomy.php on line 3146
Kay says
Hi there,
Is there a way to increase the memory and make sure it stays that way when updating WP?
Everything I update my site, I have to do it all over again…
Thanks for your help!
Fazzy says
i also found that there could be a chance that in the root folder there will be a “maint” folder, although normally this will give you a screen saying its under maint which you will then know what to do.
but in my instance the “Maint” in the root folder just showed the WSOD once it was removed i was back up and running.
anand says
its working , thanks
Avinash says
Thank you so much
Jake says
Thank you so much! Helped like a charm!
shibby says
What a legend!! Been frustrated by this all weekend and now sorted
Tom says
Thank you!!!!!
Dee says
Thanks a bunch!
Nitin Yadav says
Allowed memory size of 67108864 bytes exhausted (tried to allocate 229376 bytes)
My Problem is this
Kendra says
Thank you! It’s been a while since I ran into this problem and forgot how to fix it!
lauren says
this saved me hours of struggle, thank you so much!
kandra says
Nice one, i wonder I could increase the memory of instant wp aplication in order to successfully migrate my blog in blogger to wordpress.
Mitra says
OMG! Thanks so much for this article.
goatlady says
Thank you so much.. works perfectly..
Laxmanrao says
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 78 bytes) in /home/xxxx/public_html/wp-includes/wp-db.php on line 1837
lexspark daville says
increasing the memory limit worked for me….thanks a lot
Vikash Kumar says
Thanku you soo much… i was facing this issue and your post saved my day
Neha Srivastava says
Hi,
i am getting this error, while importing demo and uploading plugin.
i have already try out these methods. pls help.
500 – Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.
Sue P. says
Thank you, it worked!
Taim says
I increased the limit to 128M but the same problem. Then I increased it to 256M and now its working fine.
sheila says
Thank you! Worked like a charm!
Amit Sharma says
Now its working. Thanks a lot for sharing such a great information.
akshay says
work like charm thank you very much…..
Emily says
Hi, this sounds like the issue I’m having with Prophoto – however I can’t login to the admin area – as I get a blank white screen – to make the changes you suggest, is there another way? Thanks so much
ginger says
Hey, I probably have a huge problem here.. but the only wp-config file I can find on my Air is wp-config-sample.php.
total blank webpage situation – i doubt it’s memory since i don’t have more than a couple pages…
maría says
Thank you so much!!
Steven says
Thanks! I had to use 128M, but it works like a charm!
Jeff Moyer says
It’s usually easier to get your web host to do this rather then doing it manually, if you screw something up you can make your website worse.
kelvin carter says
which line of code should i past it
khasim says
Thank you so much my issue is solved .
AmigoGeek says
Thank you so much.
I had to put: 70MB and went back to work.
Blogger says
“First open your wp-config.php which is located in the root WordPress directory. Then add the following line inside the main php tag:”
I really have no idea what to click to find the wp-config.php or the root WordPress Directory. Is it in the Settings?
Sorry. I just can’t figure out. 
Thanks.
WPBeginner Support says
Please take a look at our guide on how to edit wp-config.php file in WordPress.
Admin
Ahan Jain says
I can’t find it. Where can I find my we-configure.php file.
Francois says
Hi,
In order to locate your wp-config.php file, you will need to access your clientzone of your web host and locate file manager.
In your public_html folder, you will find your wp-config.php file.
Hope this helps you.
Brittany Goldsby says
Thank you so much for this! Me and my office manager was about to pull our hair out because we couldn’t figure out how to increase the memory limit on a website we were working for a client. We actually increased the memory to ‘128M’ because ’64M’ was already there and it worked like a charm. Thanks!
Olufunmilola Soewu says
Thank you sooooo much, I’h highly grateful. Keep up the good work!!
Thanks.