Storage Calculator
Find out how many photos, videos, songs, or documents fit on your storage device.
📖 Understanding Digital Storage and File Sizes
When purchasing a storage device—whether it's an SD card for your camera, an external hard drive for backups, or a new smartphone—understanding how many files you can actually store is essential. Our Storage Calculator helps you estimate exactly how many photos, videos, songs, documents, and games will fit on any storage capacity.
Different file types have vastly different sizes. A single RAW photo from a professional camera can be 25MB or more, while a compressed JPEG might only be 3-5MB. A 4K video consumes storage nearly three times faster than 1080p footage. This calculator uses industry-average file sizes to give you realistic estimates for planning your storage needs.
📊 Average File Sizes Reference
| File Type | Average Size | Notes |
|---|---|---|
| JPEG Photo (12MP) | 4 MB | Standard smartphone/camera compressed photo |
| RAW Photo | 25 MB | Uncompressed, professional camera format |
| iPhone HEIC Photo | 2.5 MB | Apple's efficient format, ~50% smaller than JPEG |
| 1080p Video (1 min) | 150 MB | Full HD at standard bitrate |
| 4K Video (1 min) | 400 MB | Ultra HD, 4x resolution of 1080p |
| MP3 Song | 5 MB | 320kbps quality, ~4 minutes |
| FLAC Song | 35 MB | Lossless audio, ~4 minutes |
| Word Document | 0.5 MB | Text with some formatting/images |
| eBook (EPUB) | 2 MB | Standard novel with cover art |
| AAA Game | 50 GB | Modern console/PC game |
💾 Understanding Storage Units
Storage capacity can be confusing because manufacturers and operating systems measure it differently:
| Unit | Manufacturer (Decimal) | Computer (Binary) | Actual Usable |
|---|---|---|---|
| 1 GB | 1,000,000,000 bytes | 1,073,741,824 bytes | ~931 MB displayed |
| 128 GB | 128 billion bytes | 137.4 billion bytes | ~119 GB displayed |
| 1 TB | 1 trillion bytes | 1.1 trillion bytes | ~931 GB displayed |
| 2 TB | 2 trillion bytes | 2.2 trillion bytes | ~1.82 TB displayed |
💡 Important Note: Actual storage capacity is typically 5-10% less than advertised due to formatting overhead and how manufacturers calculate storage (1GB = 1,000,000,000 bytes vs operating systems using 1GB = 1,073,741,824 bytes). Our calculator accounts for this ~7% difference.
🎯 Storage Recommendations by Use Case
- Casual Smartphone User: 64-128GB is sufficient for most users with photos, apps, and some music
- Photography Enthusiast: 256GB+ for JPEG, 512GB+ if shooting RAW regularly
- Videographer: 1TB+ minimum; 4K footage consumes storage rapidly
- Music Lover: 256GB holds ~50,000 MP3s or ~7,000 FLAC songs
- Gamer: 1TB SSD minimum; 2TB recommended for a decent game library
- Professional Content Creator: 2TB+ with regular backup to external drives
📱 Device-Specific Considerations
| Device | Photo Size | Video Size (1 min) | Special Notes |
|---|---|---|---|
| iPhone 15 Pro | ~2.5 MB (HEIC) | ~400 MB (4K 30fps) | ProRAW photos can be 25MB+ |
| GoPro Hero 12 | ~5 MB | ~480 MB (4K 60fps) | 5.3K video uses even more |
| Sony A7 IV | ~25 MB (RAW) | ~600 MB (4K) | 33MP sensor, larger RAW files |
| DJI Drone | ~8 MB | ~350 MB (4K) | D-Log video uses more space |
🔧 Tips for Managing Storage
- Regular Backups: Transfer files to computer or cloud storage regularly
- Use Cloud Services: Google Photos, iCloud, and Dropbox can offload original files
- Compress When Possible: Use HEIC instead of JPEG, H.265 instead of H.264
- Delete Duplicates: Use duplicate finder tools to reclaim wasted space
- Stream Instead of Download: Music and video streaming saves significant space
- Clear App Caches: Apps accumulate cache data over time