Storage Space Calculator
Work out how much storage you need for photos, videos, music and documents — or how many files fit in a given number of GB.
What do you want to store?
Storage Breakdown
Recommended Storage
Detailed Breakdown
| Category | Count | Each | Total |
|---|
This storage space calculator adds up the space your photos, videos, music and documents will take, using realistic per-file sizes you can adjust. Use it the other way round too: pick a drive or phone size and see how many files fit. Everything is calculated in your browser.
Typical file sizes
| File type | Typical size | Notes |
|---|---|---|
| Smartphone photo (JPEG/HEIC) | 2–5 MB | 12–48 MP; HEIC is roughly half the size of JPEG |
| Professional photo / RAW | 10–25 MB | RAW files from a full-frame camera can exceed 50 MB |
| 1080p video | ~300 MB per minute | Phones at 30 fps; 60 fps roughly doubles it |
| 4K video | ~700 MB per minute | Higher bitrates (ProRes, 4K RAW) can reach 1.5 GB per minute |
| Song (MP3 320 kbps) | ~5 MB | FLAC lossless ~10 MB, hi-res audio ~30 MB |
| PDF / Office document | 0.5–2 MB | Scanned or image-heavy documents can be 10 MB+ |
How many photos or videos fit in 64 GB, 128 GB, 256 GB, 512 GB or 1 TB?
Using the typical sizes above (5 MB photos, 300 MB/min for 1080p, 700 MB/min for 4K, 5 MB songs) and decimal gigabytes (1 GB = 1,000 MB):
| Capacity | Photos | 1080p video | 4K video | Songs |
|---|---|---|---|---|
| 64 GB | ~12,800 | ~3.5 hours | ~1.5 hours | ~12,800 |
| 128 GB | ~25,600 | ~7 hours | ~3 hours | ~25,600 |
| 256 GB | ~51,200 | ~14 hours | ~6 hours | ~51,200 |
| 512 GB | ~102,400 | ~28 hours | ~12 hours | ~102,400 |
| 1 TB | ~200,000 | ~55 hours | ~24 hours | ~200,000 |
Real devices reserve space for the operating system and apps, so treat these as upper limits — a 128 GB phone typically has 100–110 GB free out of the box.
Why does a 1 TB drive show only 931 GB?
Manufacturers sell drives in decimal gigabytes (1 GB = 109 bytes), while Windows reports binary gibibytes (1 GiB = 230 bytes) and labels them "GB". 1 TB = 1,000,000,000,000 bytes ÷ 1,073,741,824 = 931 GiB. Nothing is missing; the units differ. Our data size converter switches between the two.
How much phone storage do you need?
64 GB suits light use with cloud backup; 128 GB is the sensible default for most people; 256 GB or more if you shoot a lot of 4K video, keep large games installed, or store music offline. Video is by far the biggest consumer — one hour of 4K uses more space than 8,000 photos.