Compare upload limits
Convert between bytes, KB, MB and GB when checking CMS upload caps, hosting limits, email attachments, CDN rules or API file requirements.
File Size Converter
Convert storage and upload size units.
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Compare file size units quickly for uploads, media optimization, hosting limits and client handoffs.
- Bytes
- KB and MB
- GB and TB
- Copyable output
Plan media optimization
Quickly translate image, video and document sizes into the unit your optimization checklist, client brief, analytics export or platform report uses.
Use binary storage units
The converter uses 1024-based steps, so each KB is 1024 bytes and each larger unit follows the same binary storage scale.
Private browser-based conversion
The calculation, row copy and text download actions run locally in your browser, so no file names, private assets or size data need to be uploaded.
Frequently asked questions
It converts one entered size between bytes, KB, MB, GB, TB and PB.
KB means 1024 bytes in this converter. MB, GB, TB and PB also use 1024-based steps.
Yes. Copy all converted values as a text list, or copy a single unit from its result card.
No. You only enter a number and unit, and the conversion runs locally in your browser.