File size calculator
Convert Storage Units
Enter any file size, pick its unit, and compare decimal and binary values for uploads, media exports, hosting plans, and backups.
Converted size
Binary standard, base 1,024
Bytes, KB, MB, and GB Explained
Digital storage starts with the byte. Larger units group bytes into practical labels: KB, MB, GB, TB, and PB. Decimal units use powers of 1,000, while binary units use powers of 1,024. That is why the same file can appear slightly different across hosting dashboards, operating systems, and developer tools.
Storage Unit Reference
| Unit | Decimal | Binary |
|---|---|---|
| KB / KiB | 1,000 bytes | 1,024 bytes |
| MB / MiB | 1,000 KB | 1,024 KiB |
| GB / GiB | 1,000 MB | 1,024 MiB |
| TB / TiB | 1,000 GB | 1,024 GiB |
| PB / PiB | 1,000 TB | 1,024 TiB |
Common Conversions
Planning a Faster Product?
File sizes affect uploads, media delivery, backups, and page speed. Codoffer builds web and mobile products with clean storage flows, optimized assets, and performance-minded engineering.
Size Converter — FAQs
A file size converter changes a storage value from one unit to another, such as bytes to KB, MB to GB, or GB to TB. It helps you compare upload limits, hosting storage, backup sizes, media exports, and bandwidth estimates without doing the math by hand.
KB is a decimal unit where 1 KB equals 1,000 bytes. KiB is a binary unit where 1 KiB equals 1,024 bytes. Storage drives and network plans usually use decimal units, while operating systems and developer tooling may show binary units.
Using decimal units, 1 GB equals 1,000 MB. Using binary units, 1 GiB equals 1,024 MiB. This converter lets you switch between both systems so you can match the context you are working in.
For decimal MB, divide the number of bytes by 1,000,000. For binary MiB, divide the number of bytes by 1,048,576. Enter your byte value in the converter and choose decimal or binary mode to get both results instantly.
Yes. The size converter runs in your browser, is free to use, and does not upload your data anywhere. Use it for quick file, storage, transfer, and media-size calculations.
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