Free iPhone video size estimator

iPhone video storage calculator: 4K and 1080p recording size

Choose the iPhone recording format, resolution, frame rate, duration, and available storage. The calculator estimates file size and how long the selected space can record without uploading or processing a video.

Storage estimate

This recording fits in the available space.

Estimated file size5.0 GB
Estimated per minute170 MB
Available storage used49.8%
Estimated maximum recording time1 hr 0 min

Estimate only. Keep extra free space for iOS and other files.

Apple Support: Change video recording settings on iPhone

How iPhone video size is estimated

The estimates use the approximate storage-per-minute values shown in iPhone Camera settings. Higher resolution and frame rate create larger files. High Efficiency uses HEVC for smaller files, while Most Compatible uses H.264 and generally needs more space.

Why the actual file can differ

Scene detail, motion, HDR, stabilization, audio, device model, and software version can change the final size. Keep extra free space and treat the result as a planning range, not a storage guarantee.

Frequently asked questions

How much space does 4K video use on iPhone?

The estimate depends on frame rate and format. At 4K 30 fps, this calculator uses about 170 MB per minute for HEVC and 350 MB per minute for H.264.

Is HEVC smaller than H.264 on iPhone?

Usually. Apple describes High Efficiency as the space-saving HEVC option and Most Compatible as H.264.

Does this calculator upload a video?

No. It uses only the settings and numbers you enter.