Data Storage Converter
Convert between bits, bytes, KB, MB, GB, TB, and PB instantly. Toggle between SI (decimal) and Binary (IEC) modes. 100% browser-based with no data upload.
How to Use the Data Storage Converter
1
Select Units
Choose the source unit and target unit from the dropdown menus. Options include bits, bytes, KB, MB, GB, TB, and PB.
2
Enter a Value & Choose Mode
Type the numeric value you want to convert. Toggle between SI (Decimal) and Binary (IEC) modes to match your use case.
3
Get Results & Full Table
Click Convert to see the converted value. A complete conversion table across all storage units (both SI and binary) is displayed below the result.
Frequently Asked Questions
A bit is the smallest unit of data (0 or 1). A byte is 8 bits. Bytes are used for file sizes, while bits are used for data transfer speeds (e.g., 100 Mbps = 12.5 MB/s).
Hard drive manufacturers use SI units (1 GB = 1,000,000,000 bytes) while operating systems use binary units (1 GiB = 1,073,741,824 bytes). A 1 TB drive = 1,000,000,000,000 bytes = ~931 GiB in Windows.
MB (Megabyte) uses SI decimal: 1 MB = 1,000 KB = 1,000,000 bytes. MiB (Mebibyte) uses binary: 1 MiB = 1,024 KiB = 1,048,576 bytes. MiB is used by most operating systems for file sizes.
In SI decimal: 1,000 MB = 1 GB. In binary: 1,024 MiB = 1 GiB. Always check which system you're using.
Data Unit Prefix Reference
SI (Decimal) Prefixes
| Prefix | Symbol | Factor | Example |
|---|---|---|---|
| Peta | P | 1015 | 1 PB = 1,000 TB |
| Tera | T | 1012 | 1 TB = 1,000 GB |
| Giga | G | 109 | 1 GB = 1,000 MB |
| Mega | M | 106 | 1 MB = 1,000 KB |
| Kilo | k | 103 | 1 KB = 1,000 bytes |
Binary (IEC) Prefixes
| Prefix | Symbol | Factor | Example |
|---|---|---|---|
| Pebi | Pi | 250 | 1 PiB = 1,024 TiB |
| Tebi | Ti | 240 | 1 TiB = 1,024 GiB |
| Gibi | Gi | 230 | 1 GiB = 1,024 MiB |
| Mebi | Mi | 220 | 1 MiB = 1,024 KiB |
| Kebi | Ki | 210 | 1 KiB = 1,024 bytes |
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