Data Storage Converter
Convert between binary and decimal data sizes — bytes, KB/KiB, MB/MiB, GB/GiB, TB/TiB and beyond.
Enter a value
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B
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KB
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MB
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GB
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TB
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KiB
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MiB
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GiB
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About this converter
Why two systems?
Decimal (KB = 1,000 B) is the SI standard and what hard drives are sold by. Binary (KiB = 1,024 B) is what RAM and operating system file managers traditionally use. The terms "kilobyte" and "kibibyte" formally distinguish them.
Bits vs bytes
8 bits = 1 byte. Network speeds (Mbps, Gbps) are in bits — divide by 8 to get bytes. A "100 Mbps" connection downloads up to ~12.5 MB/s.
Real-world sizes
Typical text email: ~5 KB. Photo (JPEG): 1-5 MB. HD movie: 1-5 GB. SSD: 256 GB - 4 TB. Personal cloud backup: hundreds of GiB to a few TiB.