Byte Converter Calculator
Convert digital storage between bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes. Enter an amount and pick the units to convert from and to, using binary (1 KB = 1024 bytes) factors.
Formula
Result = Amount × (from-unit bytes) ÷ (to-unit bytes), where 1 KB = 1024 B
- This converter uses binary (base-1024) factors: 1 KB = 1024 B, 1 MB = 1024 KB, and so on.
- The amount is first converted to raw bytes, then divided by the target unit's byte size.
- Operating systems like Windows report storage this way, so a '1 TB' drive shows about 931 GB.
- Decimal (SI) units use 1000 instead of 1024 — use those if you need disk-manufacturer figures.
- Bytes measure storage; bits (8 per byte) are more common for network speeds.
1024 MB to GB
Inputs
- Amount: 1024
- From Unit: MB
- To Unit: GB
1024 MB × 1,048,576 bytes = 1,073,741,824 bytes, which is exactly 1 GB in binary units.
Frequently asked questions
How many bytes are in a kilobyte?
In binary units, 1 KB = 1024 bytes. In decimal (SI) units, it's 1000 bytes.
Why does my hard drive show less space than advertised?
Drive makers use decimal units (1 TB = 1,000,000,000,000 bytes), but your OS uses binary, so a 1 TB drive appears as about 931 GB.
What's the difference between bits and bytes?
One byte equals 8 bits. Storage is usually measured in bytes, while internet speeds are measured in bits per second.
Should I use 1024 or 1000?
This tool uses 1024 (binary), which matches how most operating systems report file and drive sizes.
What comes after a terabyte?
A petabyte (PB) is 1024 terabytes, followed by exabytes, zettabytes, and yottabytes.