Online File Size Converter — Free KB to MB, GB, TB Converter
What is a File Size Converter?
A file size converter transforms digital storage measurements between bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes. This is essential when managing storage, comparing file sizes, and understanding data transfer limits.
Why Use Our File Size Converter?
- All six units — B, KB, MB, GB, TB, and PB displayed simultaneously
- Binary prefixes — Uses the standard 1024-based (binary) conversion
- Clear formatting — Large numbers displayed with appropriate notation
Ad Unit #TOOL_ABOVE
1,073,741,824
B
1,048,576
KB
1,024
MB
1
GB
9.7656e-4
TB
9.5367e-7
PB
Ad Unit #TOOL_BELOW
How to Use
- Enter a value
- Select the source unit
- All conversions display instantly
Frequently Asked Questions
Is a kilobyte 1000 or 1024 bytes?
Technically, a kibibyte (KiB) is 1024 bytes and a kilobyte (KB) is 1000 bytes. However, in common usage and in this tool, we use 1024-based binary conversion (the convention used by operating systems like Windows).
What's the largest unit?
A petabyte (PB) is 1024 terabytes (TB) — a scale used by data centers and cloud providers.