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Fix: WordPress Memory Exhausted Error – Increase PHP Memory

Do you see 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.

Fix: WordPress Memory Exhausted Error – Increase PHP Memory

What Is the WordPress Memory Exhausted Error?

The WordPress memory exhausted error is a message you might see if your website is struggling to perform tasks.

WordPress is built using PHP, a server-side programming language that needs memory to run.

Just like any other computer, web servers have a limited amount of memory to run multiple applications at the same time. WordPress hosting providers 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

Memory exhausted error displayed on a WordPress site

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.

You can use the quick links below to navigate through the tutorial:

Note: Some of these methods require you to directly edit your WordPress files. We suggest backing up your website first to avoid further errors from appearing on your website.

Option 1: Editing the wp-config.php File

First, you need to edit the wp-config.php file on your WordPress site. This is one of the core WordPress files located in the 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.

Option 2: 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.

Option 3: 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.

You can read our guide on how to properly ask for WordPress support for more information.

Option 4: Upgrading Your WordPress Hosting

If you’re constantly encountering the memory exhausted error, it might be a sign that your website has outgrown its current hosting plan.

As your website attracts more visitors and adds more content, it requires more resources to function smoothly. Upgrading to a plan with a higher memory allocation can be a permanent solution.

Consider upgrading your WordPress hosting if:

  • You’ve tried the previous solutions and the error persists.
  • Your website has significantly grown in traffic or content.
  • You plan to add features or functionality that require more resources.

Bluehost offers affordable and reliable WordPress hosting plans that can scale with your website’s needs. They provide a user-friendly platform specifically optimized for WordPress, making it easy to manage your website.

If you use our Bluehost coupon code, then you can get up to 61% off your first purchase. Just click the button below to get it:

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How to Avoid Exhausting Your WordPress Memory

Now that you’ve fixed the WordPress memory exhausted error, here are some proactive steps to prevent it from happening again:

  • Deactivate unused plugins. Many plugins contribute to memory usage. Regularly review your installed plugins and deactivate any you’re not actively using to free up memory for essential tasks.
  • Optimize images. Large images can be memory hogs. Consider using a plugin like EWWW Image Optimizer to automatically compress images before uploading them to your site.
  • Use a caching plugin. Caching plugins store website data, reducing the need for WordPress to regenerate it on every visit. This can significantly improve website performance and lower memory usage.

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 and our expert picks for the best WordPress plugins to grow your site.

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Editorial Staff at WPBeginner is a team of WordPress experts led by Syed Balkhi with over 16 years of experience in WordPress, Web Hosting, eCommerce, SEO, and Marketing. Started in 2009, WPBeginner is now the largest free WordPress resource site in the industry and is often referred to as the Wikipedia for WordPress.

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Reader Interactions

464 CommentsLeave a Reply

  1. Adam

    Thanks for this article, we’ve been having this problem too.

    Which setting takes priority?
    In WHM (MultiPHP INI Editor), memory_limit is set to 32M.
    In wp-config.php WP_MEMORY_LIMIT is set to 96M.

    • WPBeginner Support

      Normally wp-config but it would depend on your specific hosting and the settings.

      Admin

  2. Edgar

    A lot of thanks!

    • WPBeginner Support

      You’re welcome :)

      Admin

  3. arjun

    but what exactly is this wordpress memory limit, like how much amount of RAM should wp use on the server? can anyone please share about what this thing is?

    thanks

    • WPBeginner Support

      The memory limit tells WordPress how large requests/files can be for individual tasks, this is not for your site’s RAM and your RAM usage would be determined by what is on your site.

      Admin

  4. fazan

    thanks you wpbeginner
    you solve my problom
    but i have vps , can i increes more memory limit
    please reply

    • WPBeginner Support

      You would need to reach out to your hosting provider for what is available to you

      Admin

  5. Ionut Pomirleanu

    Thanks wpbeginner

    • WPBeginner Support

      You’re welcome :)

      Admin

  6. Ananth Gurunathan

    Thanks for the post. It really worked out for me for my problem which was a big head ache for last 5days. Thanks a lot.

    • WPBeginner Support

      You’re welcome, glad we could help solve the issue :)

      Admin

  7. Sandeep

    Thanks wpbeginner for this article, i have solved my problem with the help of this article

    • WPBeginner Support

      You’re welcome, glad our guide could be helpful :)

      Admin

  8. Shahid

    Thanks.. That worked like a charm :)

    • WPBeginner Support

      Glad our article could help :)

      Admin

  9. Handsome

    Thank you so much. That worked great for me!

    • WPBeginner Support

      Glad our recommendations could help :)

      Admin

  10. Ankur Verma

    It works! Thank You.

    • WPBeginner Support

      Glad our article could help :)

      Admin

  11. Peter

    There needs to be a way to figure out these memory issues without taking the entire site offline or risking breaking the configuration by disabling essential components. Furthermore, the errors are occurring even when the memory limit is set to the maximum physical memory on the server (32GB) and while they are occurring there is no actual spike in memory usage (system utilities are reporting no increase in actual physical memory use.

  12. Peter

    Useless when the issue does not depend on actual required memory – in my case it keeps giving the error for random plugins no matter how much memory I specify (up to 32GB). Would be nice to know an actual troubleshooting method to see what is using the memory.

  13. Yash Trivedi

    Correct Solution for me…..Thank You So much wpbeginer

    • WPBeginner Support

      Glad our article could help :)

      Admin

  14. Saran

    Solved. Many Many thanks bro

    • WPBeginner Support

      Glad our article could help :)

      Admin

  15. Achraf

    I love you ! you’re a life saver !

    • WPBeginner Support

      Glad our article could help :)

      Admin

  16. Wim Hoogenraad

    I wish I known that earlier. Now | lost a lot of traffic for my site.
    Hopefully it is fixed now!

    • WPBeginner Support

      Hope our article helped you resolve the problem :)

      Admin

  17. Yaseen Ghafar

    Done (y) nice work :-) thank you

    • WPBeginner Support

      Glad our article could be helpful :)

      Admin

  18. mrTF

    Thank you so much. That worked great for me!

    • WPBeginner Support

      Glad our article could help :)

      Admin

  19. CBo

    Worked Great! Thanks!

    • WPBeginner Support

      Glad you like our content :)

      Admin

  20. ikram

    Great! It works well. Thank you so much.

    • WPBeginner Support

      You’re welcome :)

      Admin

  21. Krish

    Dead on !! Thanks a lot.

    • WPBeginner Support

      Glad you like our content :)

      Admin

  22. daniel coelho

    thanks! perfect now!

    • WPBeginner Support

      You’re welcome :)

      Admin

  23. Pramod Walke

    IT’s working
    Thanks a lot.

    • WPBeginner Support

      You’re welcome :)

      Admin

  24. Mara

    It works, thank you <3

    The error was:
    Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 491520 bytes) in…

    • WPBeginner Support

      Glad our article could help :)

      Admin

  25. Moses Asiago

    Thank you, this helped me alot to kikstart in learning woocommerce

    • WPBeginner Support

      Glad our guide could help :)

      Admin

  26. EAT (my actual initials)

    Thank you so, so, so, sooooooooooo, so much! I guess as I add more posts to the database it requires more memory to operate. Various things were breaking with this internal error over the course of a couple of years, but since I could still make new posts I just said to myself, “meh, carry on.”

    Then I could no longer post! Panic! Everybody PANIC!!!

    I enabled debug mode. I got my debug report. I saw the memory exhausted reported. Then I found this page and gave it a try, thinking, “This probably won’t work. I’ve made too many changes to the theme and some of the plugins to work the way I want. Something somewhere got MuNgEd.

    Nope. Not at all. This one line of code solved it and got be back up and RUNNING!!!! Yay for me!!!! YAY FOR YOU!!!!

    • WPBeginner Support

      Glad our guide could help :)

      Admin

  27. NotMyRealName

    Thanks, it worked for me

    • WPBeginner Support

      Glad our guide could help :)

      Admin

  28. Juman

    That’s worked with me. Thanks a million

    • WPBeginner Support

      Glad our article could help :)

      Admin

  29. Mykola

    And if you have same problem in admin page you can also try

    define( ‘WP_MAX_MEMORY_LIMIT’, ‘512M’ );

    Administration tasks require much memory than usual operation. When in the administration area, the memory can be increased or decreased from the WP_MEMORY_LIMIT by defining WP_MAX_MEMORY_LIMIT.

    WP_MAX_MEMORY_LIMIT sets the maximum just on admin pages. It’s a terrible naming scheme but it dates back to WordPress 2.5 and nobody dares change it now

    • WPBeginner Support

      Thanks for adding this information for other users :)

      Admin

  30. Aniekan

    Thank you so much. It works very fine.

  31. Bethany Snyder

    Thank you so much for this quick and easy fix!

    • WPBeginner Support

      Glad our guide was helpful :)

      Admin

  32. Albert Wesquer

    Thanks man

  33. Manal Shaikh

    Thank you very much. It really worked.

  34. Kerry Rixon

    Thank you Thank you Thank you!
    A novice fixed this problem with your help! Thanks again

  35. Laura Mailleux

    I have tried this, and now my entire admin panel and website are down, all blocked by that 500 error…. I cannot access anything anymore, and therefore can’t use the File Manager again to remove the change. I’m completely lost, any chance you can help me?

    • WPBeginner Support

      Hi Laura,

      If you have access to cPanel dashboard then you can undo the changes from the file manager section there. Alternately, you can contact your hosting provider to help you fix this.

      Admin

  36. prashant

    i have to use wpml plugin issue is english language text editor working properly but when i text german or spanish language (secndery languages ) text editor cant showing on secndery languages text editor so ghow to fix that problem

  37. Jose

    I contacted my hosting company and requested them to increase my PHP memory, this resolved the issue.

  38. Abdultawab Ibrahim

    works like magic.. keep doing the good work

  39. Natangwe

    Thanks A Lot ! Saved me.

  40. Jonathan

    Help! i have this problem :(

    Allowed memory size of 268435456 bytes exhausted (tried to allocate 10489856 bytes)

  41. OMAR CHAVEZ

    Gracias !!!

  42. Clarence

    Thank you! Thank you! Thank you! VERY Helpful!

  43. Majid Korm

    Thank you very much
    My issues got solved completely based on your detailed information and help.
    many many thanks
    Majid

  44. Jonny

    I’m not as good at this stuff as I need to be, so I’m still struggling with this.

    I open the config.php file and there is a part that says:
    define( ‘WP_MEMORY_LIMIT’, ‘256M’ );

    only it already says:
    define(‘WP_MEMORY_LIMIT’, ‘1024M’);

    I’ve changed that to 2048 and 4096 with no change.

    But there is no ‘That’s all, stop editing! Happy blogging.’

    after the
    define(‘WP_MEMORY_LIMIT’, ‘1024M’);
    it says
    define(‘WP_DEBUG’, false);

    then
    # That’s It. Pencils down

    It does say ‘That’s all, stop editing! Happy blogging.’ in the Sample config.php but not in the actual one.

    Any advice?

  45. Jake

    Thank you this worked perfectly!

  46. John Grimes

    Thanks…just moved from Joomla to Wordpress and hit this issue. Thanks for the easy fix.

  47. Jenish Parmar

    You are genius. Thanks A Lot ! Saved me.

  48. Ant

    You are a life saver. I was about to start throwing breakable objects.

  49. Scarlett

    Omg, this fixed it! THANK YOU!!!

  50. lokesh

    Thanks for sharing this information, it really helped me to fix word press website.

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