Does File Size Unit Converter upload my data?

Runs locally in your browser. No data is uploaded.

How do I use File Size Unit Converter?

1. Enter a number (e.g., 1, 500, 2.75). 2. Choose the From unit and the To unit. 3. Use the swap button to reverse the conversion quickly. 4. Read the formatted result and the exact value below it.

What are common mistakes with File Size Unit Converter?

Confusing decimal vs binary units (some storage labels use 1000-based units; this tool uses 1024). Confusing bits vs bytes (this tool is for bytes: KB/MB/GB, not Kb/Mb/Gb). Relying on rounded display when you need an exact value (use the exact line).

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File Size Unit Converter

Convert file sizes between KB, MB, GB, and more instantly.

Value

From

Binary units

1 KB = 1024 bytes

Result

1,024 KB

Exact value: 1024 KB

About file size units

File sizes are measured in bytes. To make numbers readable, we use prefixes like kilo-, mega-, and giga-.

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.

File Size Unit Converter: Guide

Intent: Free file size converter online: convert bytes, KB, MB, GB, and TB to sanity-check upload limits, storage numbers, or byte counts from logs.
What it does: Converts between B/KB/MB/GB/TB (binary units) and shows both a formatted result and an exact value.
Key features: Binary (1024) units, Swap units, Formatted + exact output
Privacy: Runs locally in your browser. No data is uploaded.
Best for: Checking upload limits (e.g., "25 MB limit") and converting to other units
Developers converting byte counts to MB/GB for logs and metrics
Content teams estimating file sizes from bitrate and duration
Why this tool: Uses the common 1024-based (binary) conversions used by many OS displays
Swap units instantly without retyping values
Shows both a friendly formatted value and an exact number

How to use

1Enter a number (e.g., 1, 500, 2.75).
2Choose the From unit and the To unit.
3Use the swap button to reverse the conversion quickly.
4Read the formatted result and the exact value below it.

Common mistakes

Confusing decimal vs binary units (some storage labels use 1000-based units; this tool uses 1024).
Confusing bits vs bytes (this tool is for bytes: KB/MB/GB, not Kb/Mb/Gb).
Relying on rounded display when you need an exact value (use the exact line).