File Size Converter
Convert file sizes across B, KB, MB, GB, and TB units.
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Convert file sizes across B, KB, MB, GB, and TB
File Size Converter changes values between bytes, KB, MB, GB, and TB so you can compare upload limits, storage usage, transfer size, and compression results quickly. It is handy for attachments, image optimization, logs, and cloud storage planning.
Useful For
- Compare upload limits in MB or GB
- Check file size before and after compression
- Convert storage and bandwidth amounts
Good To Know
Some services display 1KB as 1000 bytes while others use 1024 bytes. Confirm the official unit convention for strict file size limits.
File Handling Notes
File tasks are browser-first when practical. Large files, encrypted documents, and formats that need server conversion can be limited by browser memory and server support.
Private File Handling
Jabdogu processes supported file tasks in the browser first and uploads only when server conversion is required. This note was reviewed on Jun 28, 2026.
File size conversion checks
Units
- Check 1000 vs 1024 differences such as KB/KiB and MB/MiB
- Separate OS display units from cloud or provider units
Purpose
- Decide whether you are checking upload limits, storage, or transfer size
- Compare image or PDF compression results in the same unit
Decision
- For plans or data usage, follow the provider's unit definition
- Remember rounded display values can differ from exact bytes
Yes. KB usually means 1000 bytes, while KiB means 1024 bytes. Storage, operating systems, and network tools may display units differently.
Yes. It is useful for comparing upload limits, email attachment sizes, and image-compression targets, though services may round differently.
Use them as reference conversions. For strict submission limits, leave a margin and keep the file smaller than the exact limit.