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File Size Converter

Instantly convert file sizes between all common units: bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and petabytes (PB). Supports both decimal (1 KB = 1,000 bytes) and binary (1 KiB = 1,024 bytes) standards. Includes a comparison table and real-world references like 'equivalent to X photos' or 'X songs'.

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How to Use File Size Converter

  1. 1Enter a file size and select the input unit.
  2. 2Choose decimal (KB/MB/GB) or binary (KiB/MiB/GiB) mode.
  3. 3View the converted size in all other units instantly.
  4. 4Check real-world references for context.

Frequently Asked Questions

MB (megabyte) uses decimal: 1 MB = 1,000,000 bytes. MiB (mebibyte) uses binary: 1 MiB = 1,048,576 bytes. This is why your 1 TB drive shows ~931 GB in your OS.

In decimal: 1 GB = 1,000 MB. In binary: 1 GiB = 1,024 MiB.

A typical smartphone photo is 3-5 MB. A RAW photo from a DSLR is 25-50 MB.

The File Size Converter is a free online tool that lets you convert between bytes, kb, mb, gb, tb and pb with decimal and binary modes. It is part of NexTool's collection of free tools designed to help you work faster and more efficiently.

Using the File Size Converter is simple: visit the tool page, enter your data or input into the provided fields, and get instant results. No downloads, installations, or sign-ups are required. The tool runs directly in your web browser for maximum convenience.

Yes, the File Size Converter is 100% free to use with no limitations. There is no registration required, no daily usage caps, and no hidden fees. You can use it as many times as you need.

The File Size Converter uses industry-standard formulas and algorithms to deliver reliable results. While the tool is designed for accuracy, results should be used as estimates and guidance. For critical decisions, always consult a qualified professional.

Yes, the File Size Converter is fully responsive and works on any device with a modern web browser, including smartphones, tablets, laptops, and desktops. No app installation is needed.

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About File Size Converter

Instantly convert file sizes between all common units: bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and petabytes (PB). Supports both decimal (1 KB = 1,000 bytes) and binary (1 KiB = 1,024 bytes) standards. Includes a comparison table and real-world references like 'equivalent to X photos' or 'X songs'.

NexTool's File Size Converter is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.

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File Size Converter

Conversion Results

Bytes(B)
1,000,000,000
Kilobytes(KB)
1,000,000
Megabytes(MB)
1,000
Gigabytes(GB)
1
Terabytes(TB)
0.001
Petabytes(PB)
1.0000e-6

Decimal vs Binary Comparison

DecimalValueBinaryValue
B1,000,000,000B1,000,000,000
KB1,000,000KiB976,562.5
MB1,000MiB953.6743
GB1GiB0.931323
TB0.001TiB0.000909
PB1.0000e-6PiB8.8818e-7

Real-World Equivalents

PDF documents~500 documents
HD movies (1.5 GB)~0.7 movies
4K movies (4 GB)~0.3 movies