---
name: "CURLINFO_SPEED_UPLOAD"
section: "3"
platform: "linux"
package: "curl"
version: "8.23.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "macos"]
url: "https://new.carta.tech/CURLINFO_SPEED_UPLOAD"
---

# CURLINFO\_SPEED\_UPLOAD(3)

upload speed

## NAME

CURLINFO\_SPEED\_UPLOAD - upload speed

## SYNOPSIS

```
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SPEED_UPLOAD, double *speed);
```

## DESCRIPTION

Pass a pointer to a double to receive the average upload speed that curl measured for the complete upload. Measured in bytes/second.

*[CURLINFO\_SPEED\_UPLOAD\_T(3)](/CURLINFO_SPEED_UPLOAD_T/3.md)* is a newer replacement that returns a more sensible variable type.

## PROTOCOLS

This functionality affects all supported protocols

## EXAMPLE

```
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode result;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    /* Perform the request */
    result = curl_easy_perform(curl);
    if(result == CURLE_OK) {
      double speed;
      result = curl_easy_getinfo(curl, CURLINFO_SPEED_UPLOAD, &speed);
      if(result == CURLE_OK) {
        printf("Upload speed %.0f bytes/sec\n", speed);
      }
    }
  }
}
```

## DEPRECATED

Deprecated since 7.55.0.

## AVAILABILITY

Added in curl 7.4.1

## RETURN VALUE

*[curl\_easy\_getinfo(3)](/curl_easy_getinfo/3.md)* returns a CURLcode indicating success or error.

CURLE\_OK (0) means everything was OK, non-zero means an error occurred, see *[libcurl-errors(3)](/libcurl-errors/3.md)*.

## SEE ALSO

[**CURLINFO\_SPEED\_DOWNLOAD\_T**(3)](/CURLINFO_SPEED_DOWNLOAD_T/3.md), [**curl\_easy\_getinfo**(3)](/curl_easy_getinfo/3.md), [**curl\_easy\_setopt**(3)](/curl_easy_setopt/3.md)