File Size Converter

Convert between different file size units with precision and ease.

Enter Value:

From Unit:

Result:

To Unit:

Common File Size References

Text Document (1 page): ~10 KB

MP3 Song (3 min): ~3-5 MB

Digital Photo (12MP): ~4-8 MB

HD Movie (1.5 hours): ~4-8 GB

4K Movie (1.5 hours): ~15-30 GB

Modern Video Game: ~50-150 GB

Understanding File Size Units

Byte (B)

The basic unit of digital information storage. One byte typically represents one character of text.

Kilobyte (KB)

1 KB = 1,024 bytes. About the size of a short paragraph of text.

Megabyte (MB)

1 MB = 1,024 KB. Equivalent to about 1 minute of MP3 audio or a small digital photo.

Gigabyte (GB)

1 GB = 1,024 MB. Can store about 250 songs or a standard definition movie.

Terabyte (TB)

1 TB = 1,024 GB. Equivalent to about 250,000 photos or 500 hours of HD video.

Petabyte (PB)

1 PB = 1,024 TB. Used for massive data centers and enterprise storage solutions.

Frequently Asked Questions

What's the difference between binary and decimal file sizes?

Binary uses powers of 2 (1 KB = 1,024 bytes), while decimal uses powers of 10 (1 KB = 1,000 bytes). Computers typically use binary, but some storage manufacturers use decimal.

Why does my 1TB hard drive show less than 1TB of space?

Hard drive manufacturers use decimal (1,000 bytes = 1 KB), while operating systems use binary (1,024 bytes = 1 KB). This difference, plus space used by formatting, makes the available space less than advertised.

How accurate is this converter?

This converter uses the binary system (powers of 1,024) for all calculations, providing precise conversions between digital storage units.