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To accept WordPress uploads larger than 2MB on Nginx, raise the limit at every layer that can reject the request: Nginx’s client_max_body_size, PHP-FPM’s upload_max_filesize and post_max_size, and (for Multisite) the network’s maximum upload setting. WordPress reports the smaller of the two PHP values, so changing only one setting commonly leaves the displayed limit unchanged. A 413 “Request Entity Too Large” response normally means Nginx rejected the request before PHP ran.
What actually controls a WordPress upload
An upload passes through several independent ceilings. The first failing layer determines the error you see, and a higher limit at a later layer cannot override a lower one earlier in the request path.
| Layer | Setting | What it limits | Where it is configured |
|---|---|---|---|
| Nginx | client_max_body_size |
The entire HTTP request body accepted by Nginx | Nginx http, server, or location context |
| PHP | upload_max_filesize |
One uploaded file | The PHP configuration loaded by the PHP-FPM pool serving the site |
| PHP | post_max_size |
The complete POST request, including the multipart upload and other fields | The same PHP-FPM configuration |
| PHP | memory_limit |
Memory available while PHP processes the request | The PHP-FPM configuration |
| WordPress Multisite | Max upload file size | A network-level maximum for a single uploaded file | Network Admin → Settings → Network Settings |
WordPress calculates the PHP upload ceiling as the smaller of upload_max_filesize and post_max_size. Therefore, increasing only upload_max_filesize does not help when post_max_size remains lower. The request also has to pass Nginx’s body limit and, on Multisite, the network limit.
The familiar 2MB value is not a universal WordPress limit. It is an effective value supplied by a particular PHP, Nginx, hosting, or network configuration. Treat it as a symptom to trace, not as a WordPress-wide constant.
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Before changing anything: find the configuration that is really serving the site
Many failed fixes edit a file that is not used by the active virtual host or PHP-FPM pool. Establish the active path first.
Identify the active Nginx server block
- Determine which server block handles the site’s hostname, including the HTTPS block if TLS traffic is terminated by Nginx.
- Check whether the site inherits a value from the global
httpcontext or overrides it in aserverorlocationblock. - Look for an included file that defines upload-related directives. A later, more specific
locationsetting can replace a value you changed elsewhere. - Confirm that the block you edit is the one enabled by the running Nginx configuration, not an unused template or an old site definition.
Identify the PHP-FPM pool and loaded PHP settings
- Use the site’s current WordPress Site Health information or another server-side diagnostic to identify the PHP version and FPM integration serving web requests.
- Locate the pool configuration for that site. A command-line PHP configuration can differ from the configuration loaded by PHP-FPM, so changing a CLI
php.inialone may have no effect on uploads. - Check the effective values of
upload_max_filesize,post_max_size, andmemory_limitas reported to the web request. - Record the upload value WordPress currently displays in Media or Site Health. This gives you a before-and-after check.
On shared hosting, these files may be outside your account’s permissions. If the provider controls Nginx or PHP-FPM, you will need the host to make the change.
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Set Nginx’s request-body ceiling
Nginx evaluates client_max_body_size before passing the request to PHP. If the body is larger than that value, Nginx returns a 413 response and WordPress never receives the upload.
Choose a value for the complete request
Set the directive above the size of the individual file you intend to accept. The directive applies to the whole HTTP request, not just the file bytes. Leave room for multipart boundaries, metadata, authentication fields, and any other POST data. Consequently, an Nginx value exactly equal to the desired file size can still be too small.
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Put the directive in the effective context
The directive can be defined in Nginx’s http, server, or location context. Use the narrowest context that matches your operational goal, then verify that no more-specific block overrides it. A representative server-block entry looks like this:
server {
# site-specific directives
client_max_body_size 64M;
}64M is only an illustration. Replace it with a ceiling appropriate for your site and keep it larger than the complete request you expect to receive. Do not place the line in a configuration file that the active server block does not include.
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Validate and reload Nginx safely
- Save the change in the active Nginx configuration.
- Run the syntax/configuration test provided by your operating system’s Nginx package before applying it.
- If validation succeeds, reload Nginx using the service manager and command format appropriate to that operating system. A reload is preferable when supported because it applies the new configuration without unnecessarily stopping existing workers.
- Check the service status and Nginx error log if the reload fails. A syntax error, an invalid context, or an include-path mistake must be corrected before testing WordPress.
Raise PHP-FPM’s two upload directives
PHP applies two different size checks. upload_max_filesize governs one file; post_max_size governs the entire POST request. PHP’s documentation requires post_max_size to be at least as large as upload_max_filesize, and practical multipart overhead means it should normally be larger.
Set the individual-file limit
Set upload_max_filesize to the largest single file WordPress should accept. This is the value behind the PHP error, “The uploaded file exceeds the upload_max_filesize directive in php.ini.” If this value is lower than Nginx’s ceiling, PHP will reject the file even though Nginx allowed the request through.
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Set the complete POST limit higher
Set post_max_size to at least the upload_max_filesize value, with additional room for multipart overhead and other POST fields. If post_max_size is lower, WordPress uses that lower value when calculating the displayed maximum.
upload_max_filesize = 50M
post_max_size = 60MThese numbers demonstrate the required ordering only; choose values that match your intended policy. Keep the Nginx request limit above the complete post_max_size value so Nginx does not reject a request that PHP is configured to accept.
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WordPress’s upload guidance recommends that memory_limit be larger than post_max_size, with post_max_size larger than upload_max_filesize. This relationship helps PHP process large multipart requests without exhausting its memory allowance:
memory_limit > post_max_size > upload_max_filesizeMemory sizing is not a substitute for the two upload directives. A high memory limit cannot make a low upload_max_filesize accept a larger file, and a high upload limit cannot prevent a memory exhaustion failure while WordPress processes it.
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Reload PHP-FPM, not just the command-line PHP
- Save the values in the PHP configuration used by the active PHP-FPM pool.
- Use the service manager’s syntax for your operating system and installed PHP-FPM version to reload or restart that pool. The service name and command differ between distributions and PHP versions, so do not copy a command intended for another environment.
- Confirm that the pool came back healthy. A failed restart can leave the site serving errors or an older worker configuration.
- Recheck the values through WordPress or another web-request diagnostic. A command-line
php -iresult alone does not prove that PHP-FPM loaded the same file.
Recheck WordPress and test just below the ceiling
After both services have accepted the configuration, open WordPress Media or Site Health and read the reported maximum upload size. WordPress should now show the smaller of the effective upload_max_filesize and post_max_size values.
- Confirm that the displayed value changed from the original 2MB (or other prior value).
- Prepare a test file slightly smaller than the configured individual-file limit. Testing just below the ceiling avoids confusing request overhead with the file limit itself.
- Upload it through the same WordPress screen that previously failed.
- If it succeeds, test the actual file type and workflow your site needs. A successful media upload does not prove that every plugin’s separate importer or REST endpoint uses identical limits.
If WordPress still reports the old value, compare both PHP directives in the configuration loaded by the web request. The smaller one is authoritative for WordPress. Then verify that you edited the active FPM pool and that its workers were reloaded.
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Multisite adds a network-level ceiling after the server and PHP settings. A site can have adequate Nginx and PHP values yet still show a lower maximum because the network administrator set a smaller limit.
- Sign in as a network administrator.
- Open Network Admin → Settings → Network Settings.
- Review Max upload file size and raise it to the intended individual-file limit, provided it does not exceed the server-side policy.
- Review Site upload space as well. This controls the storage allowance assigned to sites and is separate from the per-file request limit.
- Save the network settings, then return to the site’s Media screen and recheck the displayed limit.
The effective Multisite limit is constrained by all layers: Nginx must accept the complete request, PHP must accept the file and POST, and the network setting must permit the individual file.
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Troubleshoot by the symptom
413 Request Entity Too Large
Start with Nginx. Inspect client_max_body_size in the active http, server, and location contexts, including included files. Confirm the request is reaching the server block you edited and that Nginx was successfully reloaded. A 413 generated before PHP indicates that changing php.ini cannot resolve this particular failure.
“The uploaded file exceeds the upload_max_filesize directive in php.ini”
Check upload_max_filesize in the PHP-FPM configuration used by the web request. Verify the pool was reloaded and that another pool, container, or PHP version is not serving the site. Also compare post_max_size; WordPress cannot report a value above the smaller PHP setting.
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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsWordPress still shows 2MB after editing php.ini
- The edited file may belong to command-line PHP rather than PHP-FPM.
- The active pool may load a different configuration file.
post_max_sizemay still be 2MB or another lower value.- PHP-FPM workers may not have been reloaded.
- On Multisite, Max upload file size may be lower in Network Settings.
Check these in order, using the value WordPress reports after each service reload as your confirmation.
The size values are high, but processing still fails
Inspect memory and execution resources rather than raising upload limits blindly. The documented WordPress relationship requires memory_limit to exceed post_max_size. Other processing limits can also affect a particular plugin or workflow, but there is no single universal timeout value established for every Nginx and PHP-FPM installation. Review the PHP-FPM and Nginx logs at the time of the failure to distinguish memory exhaustion, worker termination, and application-level errors.
Shared hosting will not let you edit the settings
Some shared hosts control Nginx and PHP-FPM centrally. If your account cannot change the relevant configuration or reload services, send the provider the exact values you need for client_max_body_size, upload_max_filesize, post_max_size, and (if necessary) memory_limit. Ask the host to confirm which PHP-FPM pool and server block handle your domain. If the host’s policy cannot accommodate the required request, a managed WordPress hosting or Nginx hosting support service may be necessary.
Keep the limits consistent
A predictable configuration has a clear ordering. The individual-file limit should be below the complete POST limit; the complete POST limit should be below the available PHP memory; and Nginx’s request-body ceiling should be above the complete POST limit, with practical overhead considered.
- Individual file:
upload_max_filesize - Complete POST:
post_max_size, at least as large as the file limit - PHP processing:
memory_limit, larger than the POST limit for large uploads - HTTP request:
client_max_body_size, larger than the complete request PHP must receive - Multisite policy: Network Admin’s Max upload file size, no higher than the server policy
When all five checks agree, WordPress can accept files over 2MB without relying on a single misleading setting. When they disagree, use the first layer that rejects the request as the starting point for diagnosis.
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