File Size Converter

Value

Converted Values

1.074e+9

Bytes (B)

1.049e+6

Kilobytes (KB)

1.024e+3

Megabytes (MB)

Gigabytes (GB)

9.766e-4

Terabytes (TB)

9.537e-7

Petabytes (PB)

What is a File Size Converter?

A file size converter converts a value between the various units used to measure digital storage: bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and their binary equivalents (KiB, MiB, GiB, TiB). This tool supports both the decimal (SI, 1000-based) and binary (IEC, 1024-based) systems, so you can reconcile the difference between drive advertising and OS reporting.

How to Use

Enter a numeric value in the input field (e.g., 500).
Select the source unit from the dropdown (e.g., Gigabytes (GB)).
All equivalent values across every unit are displayed instantly in the results panel.
The currently selected source unit is highlighted for easy reference.

Frequently Asked Questions

What is the difference between MB and MiB?

MB (megabyte) = 1,000,000 bytes (decimal, SI standard). MiB (mebibyte) = 1,048,576 bytes (binary, 1024²). Hard drive manufacturers use decimal (so a "500 GB" drive has 500,000,000,000 bytes), while operating systems often report in binary (showing ~465 GiB for the same drive).

Why does my hard drive show less space than advertised?

Drive manufacturers measure in decimal (1 GB = 10⁹ bytes) while Windows reports in binary GiB (labeled as GB). A 1 TB drive has 1,000,000,000,000 bytes = ~931 GiB. The drive isn't "missing" space — it's a unit labeling difference.

How large is a typical file?

MP3 audio: 3–8 MB/song. JPEG photo: 2–6 MB. HD video: 1–2 GB/hour. 4K video: 7–20 GB/hour. A Word document: 50–500 KB. An email with attachment: 1–10 MB. A feature film (Blu-ray): 25–50 GB.

What is a petabyte?

1 petabyte (PB) = 1,000 terabytes = 1,000,000 GB. Major cloud providers store exabytes (1,000 PB) of data. The entire internet is estimated at a few zettabytes (1,000,000 PB). For reference, all words ever spoken by humans is estimated at ~5 exabytes.