iPhone Photo & Video Format Size Calculator
How big are your iPhone photos and videos, really? This calculator compares file sizes across every iPhone format — HEIF, JPEG, ProRAW, and ProRes — at both 12MP and 48MP resolutions. See exactly how much storage your media consumes and how much you can save by switching formats.
How the Photo Format Size Checker Works
Modern iPhones support multiple photo and video formats, each with dramatically different file sizes and quality characteristics. Understanding these formats is essential for managing storage effectively, especially on devices without expandable storage. The format you choose directly impacts how many photos and videos you can store on your iPhone and in iCloud.
HEIF (High Efficiency Image Format) is the default photo format on iPhones since iOS 11. It uses the HEVC compression codec to produce files roughly half the size of equivalent JPEG images while maintaining the same visual quality. A typical 12MP HEIF photo is about 1.5MB compared to 3MB for JPEG. At 48MP on iPhone 15 Pro and 16 Pro models, HEIF files average around 5MB versus 10MB for JPEG. HEIF also supports advanced features like depth maps, Live Photos, and image sequences within a single file.
JPEG (Joint Photographic Experts Group) is the universal compatibility format. While larger than HEIF, JPEG files work everywhere — every browser, every social media platform, every image editor, and every operating system supports JPEG natively. iPhones set to "Most Compatible" in Camera settings capture in JPEG and H.264. This format is ideal if you frequently share photos with non-Apple devices or use older software that does not support HEIF.
ProRAW is Apple's professional photography format available on iPhone Pro models. It combines the computational photography advantages of iPhone processing — Deep Fusion, Smart HDR, Night mode — with the editing flexibility of RAW files. ProRAW files at 48MP are approximately 75MB each, making them 50 times larger than standard HEIF photos. This format is designed for professional photographers who need maximum editing latitude and are willing to sacrifice storage for quality.
ProRes is Apple's professional video codec, also exclusive to Pro models. ProRes video at 4K captures approximately 6GB per minute, making it the most storage-intensive format available on iPhone. A single hour of ProRes footage requires 360GB — more than most iPhone storage configurations can hold. ProRes is designed for professional filmmakers who need broadcast-quality footage suitable for professional color grading and post-production workflows.
Which Format Should You Use?
For most users, the default HEIF/HEVC setting offers the best balance of quality and storage efficiency. Switch to JPEG only if you need maximum compatibility. Use ProRAW sparingly for important shots where you plan to do extensive editing. Reserve ProRes for professional video production where you will transfer footage to a computer for editing. Understanding the storage impact of each format helps you make informed decisions about your iPhone camera settings.
Frequently Asked Questions
How big is a typical iPhone photo in HEIF format?
A standard 12MP HEIF photo averages about 1.5MB. On iPhone 15 Pro or 16 Pro at 48MP, HEIF photos average around 5MB. These sizes can vary depending on scene complexity — photos with lots of detail and color variation will be slightly larger than simple, uniform scenes.
Is there any quality difference between HEIF and JPEG on iPhone?
At the same resolution, HEIF and JPEG are virtually indistinguishable in visual quality. HEIF achieves smaller file sizes through more efficient compression, not by reducing quality. In fact, HEIF supports 16-bit color depth compared to JPEG's 8-bit, making it technically superior in color accuracy.
Can I convert HEIF photos to JPEG?
Yes, iPhones automatically convert HEIF to JPEG when sharing via email, messages, or AirDrop to non-Apple devices. You can also set this behavior in Settings, Photos, Transfer to Mac or PC, choosing Automatic for conversion. On Mac, you can batch convert using Preview or the Photos app export function.
How much storage does one hour of 4K video use?
One hour of standard 4K video at 30fps uses approximately 24GB. At 60fps, this increases to roughly 36GB. 4K ProRes video uses approximately 360GB per hour, which is why it is only practical with the 1TB iPhone model or when transferring footage frequently to external storage.
Should I shoot in ProRAW all the time?
No. ProRAW files are 50 times larger than HEIF and the quality difference is only visible when doing extensive post-processing in apps like Lightroom. For everyday photography, HEIF provides excellent quality at a fraction of the storage cost. Reserve ProRAW for important shots where you plan to do serious editing.