How to Check a Photo's File Size and Resolution on iPhone
A photo’s file size and resolution can be checked directly on iPhone through the Photos app. Open the image, swipe up, or tap the Info button. The details panel shows pixel dimensions, file size, filename, capture date, format, and camera information when available. Images stored in Files use the Get Info option.
Steps
- Open the Photos app and select the required image.
- Swipe up on the image or tap the Info button.
- Read the dimensions, such as 4032 × 3024 pixels, and the file size shown in the information panel.
- Review the format, including HEIF, JPEG, PNG, or RAW, when displayed.
- For an image in the Files app, touch and hold the file, then select Get Info.
Common Issues and Fixes
- No file size appears: The Photos information panel may show limited metadata on some iOS versions. Save or copy the image to Files, then use Get Info.
- Resolution looks different after editing: Cropping, resizing, or exporting can change the original iPhone photo dimensions. Check the edited file separately.
- Only camera details are visible: Older iOS versions or imported images may not display complete metadata. Update iOS or inspect the image in Files.
- An image shows a small size after sharing: Messaging and social apps often compress photos. Check the original image in Photos rather than the received copy.
- A screenshot has unexpected dimensions: Screenshots use the iPhone display resolution, not the camera sensor resolution. The Info panel shows the actual screenshot dimensions.
💡Protip:
Pixel dimensions indicate resolution; megabytes or kilobytes indicate file size. A larger resolution does not always mean a larger file.
HEIF files usually occupy less storage than JPEG files with similar image quality.
Live Photos may include additional motion data, so the displayed size can exceed the size of a still image.
iCloud Photos may require an internet connection to download the full-resolution original before complete information becomes available.
Related Questions
How can photo dimensions be checked without opening the image?
Open the Photos app, select an image, and use the Info button. The dimensions appear in the metadata panel rather than the thumbnail view.
How can an iPhone photo be reduced in file size?
Use an editing or exporting method that changes the resolution or format, such as saving a JPEG copy or resizing the image. Keep the original photo before compression because reduced quality may not be reversible.
