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GB to MB Converter
Convert gigabytes to megabytes instantly. Free online data storage converter for file sizes, memory, and storage capacity. Perfect for understanding data plans and storage limits.
Convert GB to MB with Our Free Online Tool
Instantly convert any storage capacity from gigabytes to megabytes using our free online converter. Useful for comparing file sizes, understanding storage requirements, and working with memory specifications.
Note: This converter uses binary units where 1 GB = 1,024 MB, which is how operating systems traditionally report storage.
How to Use Our GB to MB Conversion Tool
- Enter the size in gigabytes in the input field.
- The equivalent size in megabytes will be displayed instantly.
GB to MB Conversion Formula
To convert gigabytes to megabytes, multiply by 1024:
MB = GB × 1024
For example, 1 GB = 1,024 MB. 8 GB = 8,192 MB. 16 GB = 16,384 MB.
GB to MB Conversion Table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 1 GB | 1024 MB |
| 2 GB | 2048 MB |
| 4 GB | 4096 MB |
| 8 GB | 8192 MB |
| 16 GB | 16384 MB |
| 32 GB | 32768 MB |
| 64 GB | 65536 MB |
| 128 GB | 131072 MB |
| 256 GB | 262144 MB |
| 512 GB | 524288 MB |
| 1000 GB | 1024000 MB |
| 1024 GB | 1048576 MB |
Popular Gigabytes to Megabytes Conversions
Frequently Asked Questions
How many MB are in a GB?
1 GB (gigabyte) equals 1,024 MB (megabytes) in binary system used by computers. However, storage manufacturers often use decimal where 1 GB = 1,000 MB. Our converter uses the standard binary 1,024 MB = 1 GB.
How do I convert GB to MB?
Multiply gigabytes by 1,024 to get megabytes. Formula: MB = GB × 1,024. For example, 5 GB = 5 × 1,024 = 5,120 MB. Some systems use 1,000 instead of 1,024.
Why is 1 GB not exactly 1,000 MB?
Computers use binary (base-2) math, so storage is measured in powers of 2. 1 GB = 2^30 bytes = 1,024 MB. Storage manufacturers use decimal (base-10) where 1 GB = 10^9 bytes = 1,000 MB, which is why your 500 GB drive shows less space in Windows.
How many GB is a 2-hour movie?
A 2-hour movie ranges from 1-8 GB depending on quality: Standard definition (480p) ≈ 1-2 GB, HD (1080p) ≈ 3-4 GB, 4K UHD ≈ 15-25 GB. Streaming services use compression and may use less data (Netflix HD ≈ 3 GB/hour).
How many MB is a typical photo?
Photo sizes vary: Phone photos (12MP) ≈ 2-5 MB, DSLR photos (24MP) ≈ 5-15 MB, RAW format ≈ 25-50 MB. A 64 GB phone can store roughly 10,000-15,000 average photos.
How much data do I need per month?
Typical monthly usage: Light use (email, browsing) ≈ 10-20 GB, Moderate (streaming music, social media) ≈ 50-100 GB, Heavy (4K streaming, gaming) ≈ 200+ GB. 1 hour of Netflix HD uses about 3 GB. Check your current usage to estimate needs.