Easily convert between Bit, Byte, KB, MB, GB, TB, and PB. Download time and bandwidth calculator.
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In decimal system (SI), 1 GB = 1,000 MB. In binary system (IEC), 1 GiB = 1,024 MiB. Most hard disk manufacturers use decimal, but operating systems use binary.
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Common conversions for quick reference
1 KB = 1,000 Bytes (Decimal)
1 KiB = 1,024 Bytes (Binary)
1 MB = 1,000 KB = 1,000,000 Bytes
1 MiB = 1,024 KiB = 1,048,576 Bytes
1 GB = 1,000 MB = 1,000,000,000 Bytes
1 GiB = 1,024 MiB = 1,073,741,824 Bytes
1 TB = 1,000 GB = 1,000,000,000,000 Bytes
1 TiB = 1,024 GiB = 1,099,511,627,776 Bytes
MP3 Song: 3-5 MB
High Resolution Photo: 5-10 MB
HD Movie (1080p): 4-8 GB
4K Movie: 25-100 GB
CD: 700 MB
DVD: 4.7 GB
Blu-ray Disc: 25-50 GB
AAA Game: 50-150 GB
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