Data Storage Converter
Convert bytes, KB, MB, GB, TB and binary units (KiB, MiB, GiB).
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Bit (b)
Byte (B)
| Unit | 1 b equals |
|---|---|
| Bit (b) | 1 |
| Byte (B) | 0.125 |
| Kilobyte (KB) | 0.000125 |
| Megabyte (MB) | 1.25e-7 |
| Gigabyte (GB) | 1.25e-10 |
| Terabyte (TB) | 1.25e-13 |
| Petabyte (PB) | 1.25e-16 |
| Kibibyte (KiB) | 0.00012207 |
| Mebibyte (MiB) | 1.19209e-7 |
| Gibibyte (GiB) | 1.16415e-10 |
| Tebibyte (TiB) | 1.13687e-13 |
How it works
- 1 GB = 1,000 MB (decimal)
- 1 GiB = 1,073,741,824 bytes (binary)
- 1 TB = 1000 GB
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Frequently asked
What's the difference between GB and GiB?
GB uses powers of 10 (1,000³); GiB uses powers of 2 (1,024³).
Where you'll actually use this
Data storage units measure information — bits, bytes, and their multiples. The catch: decimal (kB = 1,000 B) and binary (KiB = 1,024 B) systems both exist and are often confused.
- Cloud storage & quotas
Providers usually quote storage in GB (decimal). Operating systems often report in GiB (binary), which is why a '1 TB' drive shows up as ~931 GiB.
- Network bandwidth
Internet speeds are quoted in Mbps (megabits per second), not MB/s. Divide by 8 to get download MB/s.
- Media files
Video bitrates, photo file sizes, and database row counts all need fluent byte-multiple conversion.
Common mistakes to avoid
- Bits vs bytes
Lowercase b = bit, uppercase B = byte. 1 byte = 8 bits. 100 Mbps ≠ 100 MB/s.
- MB vs MiB
1 MB = 1,000,000 B. 1 MiB = 1,048,576 B. The difference grows the larger you go — about 10% at the TB/TiB level.
Did you know?
Drive makers use decimal GB (1,000³). Operating systems show binary GiB (1,024³). A 1 TB drive really is 1 TB — just 931 GiB.
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Accuracy & sources
How this tool is built and verified.
- Source
- Standards-aligned factors
- Last reviewed
- Q2 2026
- Status
- Verified
- International System of Units (SI)BIPM — Bureau International des Poids et Mesures · The International System of Units (SI Brochure), 9th edition
- IEC 80000-13 — Information & Information TechnologyIEC
- Standards aligned
- Formula verified
- Editor reviewed
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