File
File Size Calculator
Check file sizes and convert bytes into KB, MB, GB, KiB, MiB, and GiB directly in your browser.
Tool
Check file sizes and convert bytes into KB, MB, GB, KiB, MiB, and GiB directly in your browser.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free File Size Calculator to inspect one or more files and display their sizes in bytes, kilobytes, megabytes, gigabytes, kibibytes, mebibytes, and gibibytes. It can also calculate the combined size of multiple selected files. The files are analyzed locally in your browser and are not uploaded.
Examples
- 1,048,576 bytes = 1 MiB
- 10,000,000 bytes = 10 MB
- Multiple files = combined total
Frequently Asked Questions
What is the difference between MB and MiB?
One MB equals 1,000,000 bytes, while one MiB equals 1,048,576 bytes. Both units are commonly used to describe file sizes.
Can I calculate the total size of multiple files?
Yes. Select multiple files to view each individual size and their combined total.
Are my files uploaded?
No. File size information is read locally in your browser.