Data Size Conversions
Convert digital storage units — bits, bytes, KB, MB, GB, TB. Free calculators using binary (1024) factors for files, RAM, and bandwidth planning.
6 units · 5 conversions
Digital storage is measured in bits and bytes. One byte equals 8 bits. Larger units — kilobytes, megabytes, gigabytes — traditionally use binary prefixes (multiples of 1024) in computing, though marketing sometimes uses decimal (1000) values.
Our data-size converters use the standard binary progression (1 KB = 1024 bytes) common in operating systems and file managers. This helps when comparing download sizes, disk space, or memory specifications.
Popular data size conversions
Real-world example
Your cloud plan offers 100 GB of storage and a folder report shows 87,423,123,456 bytes used. Converting bytes to gigabytes (÷ 1024³) shows roughly 81.4 GiB used — under your limit with room to spare.
All data size conversions
Data Size units explained
- Bits (bit)
- Also: bits
- Bytes (B) · base unit
- Also: bytes
- Kilobytes (KB)
- Also: kilobytes, kB
- Megabytes (MB)
- Also: megabytes
- Gigabytes (GB)
- Also: gigabytes
- Terabytes (TB)
- Also: terabytes
Frequently asked questions
- How many bytes are in a megabyte?
- In binary (IEC) terms, 1 megabyte = 1,048,576 bytes (1024 × 1024). Some contexts use 1,000,000 bytes (decimal MB).
- What is the difference between bits and bytes?
- A bit is the smallest unit (0 or 1). A byte is 8 bits. Download speeds are often in bits per second; file sizes are usually in bytes.