File Size Unit Converter

About File Size Units

File sizes are typically measured in bytes. Because files can be very large, we use prefixes like Kilo-, Mega-, and Giga- to make the numbers easier to read.

This tool uses the binary standard (IEC), where:

• 1 KB = 1,024 Bytes
• 1 MB = 1,024 KB (1,048,576 Bytes)
• 1 GB = 1,024 MB (1,073,741,824 Bytes)

This calculator runs entirely in your browser. No data is sent to any server.