To convert HEIC images to JPG on an iPhone using the Photos app, you can follow these general steps:

  1. Open the Photos app on your iPhone.
  2. Navigate to the HEIC image you want to convert.
  3. Tap on the image to open it.
  4. Tap the share icon (typically depicted as a square with an arrow pointing upward) located at the bottom-left corner of the screen.
  5. Scroll down and select "Save as JPEG." This action converts the HEIC image to a JPG format and saves it to your Photos library.


If you'd prefer a simpler way to convert HEIC to JPG on your iPhone, you can also send yourself an email with the photo attached. The photo will automatically be converted to JPG in the process.