Megabytes to Gigabytes (MB to GB) Converter
Convert megabytes to gigabytes for file sizes, photo storage, video length, and data plan management. See exactly how many GB your files use.
💻 Storage📐 GB = MB / 1,000 (decimal) or 1,024 (binary)
Megabytes (MB)
Standard
Please enter valid values.
Formula & Reference
| Variable | Formula | Units |
|---|---|---|
| Megabytes to Gigabytes (MB to GB) Converter | GB = MB / 1,000 (decimal) or 1,024 (binary) | GB |
Step-by-Step Examples
Example 1
5,120 MB
5,120 MB to GB.
- Decimal: 5,120/1,000 = 5.12 GB
- Binary: 5,120/1,024 = 5.0 GiB exactly
- 5,120 MB = exactly 5 GiB = 5.12 GB
✓ 5.0 GiB / 5.12 GB
Example 2
1,000 Photos
Average 5 MB photo x 1,000 = 5,000 MB.
- 5,000 / 1,000 = 5 GB of photos
- Modern smartphones produce 3-10 MB JPEGs
✓ 5 GB of photos
Example 3
4K Video
4K video at 400 MB/min x 10 min = 4,000 MB.
- 4,000 / 1,000 = 4 GB for 10 min of 4K
- 1 hour of 4K = about 24 GB
✓ 4 GB for 10 min of 4K
Real-World Applications
Mobile Data Plans
Know exactly how many GB your apps, photos, and videos are using.
Photography
Calculate storage needed for RAW and JPEG photo collections.
Video Production
Estimate storage requirements for 4K and HD video projects.
Backup Planning
Size your backup drives based on actual data volume in GB.
Common Mistakes to Avoid
⚠️
Mixing decimal and binary
Software often mixes definitions. Windows shows binary (1 GB = 1,024 MB) while manufacturers label drives in decimal (1 GB = 1,000 MB). This causes the apparent size discrepancy.
⚠️
Confusing MB/s and Mbps
MB/s (megabytes per second) is for storage. Mbps (megabits per second) is for network speed. To convert: 1 MB/s = 8 Mbps. USB 3.0 at 5 Gbps = about 625 MB/s actual throughput.
⚠️
Not accounting for filesystem overhead
Formatted drives lose 5-10% to filesystem metadata. A 256 GB drive may have only 238 GB available after formatting.
Frequently Asked Questions
How many MB in a GB? ▾
1,000 MB (decimal/SI) or 1,024 MB (binary/traditional). Hard drive makers use decimal; older computing standards use binary.
How many MB is a typical movie? ▾
720p: 700 MB - 2 GB. 1080p: 2-8 GB. 4K: 15-80 GB depending on compression. Streaming services compress heavily: Netflix 4K uses about 7 GB/hour.
How many MB per minute is 4K video? ▾
Uncompressed 4K is enormous. Practical rates: Phone 4K: 350-400 MB/min. DSLR 4K H.265: 100-200 MB/min. Cinema RAW: 1,000-5,000 MB/min.
Is 256 GB enough storage? ▾
For a phone: 256 GB holds about 50,000 photos or 50+ hours of 1080p video. For a laptop: 256 GB is tight if you have many programs; 512 GB is more comfortable for most users.
How many GB is 10,000 photos? ▾
At 5 MB average smartphone JPEG: 50 GB. At 25 MB average mirrorless JPEG: 250 GB. RAW files (25-50 MB each): 250-500 GB for 10,000 photos.