Data Storage Converter
Convert bytes, KB, MB, GB and TB.
✓ Professional standard Uses precise SI and internationally agreed conversion factors for accurate, standards-based results.
Data Storage Converter is a free online converter from Toolinza. Convert bytes, KB, MB, GB and TB. It runs entirely in your browser — your data is never uploaded — needs no signup, and works on any device. Toolinza offers 293+ free tools used by people across the UK, USA, Canada, Australia, the EU, India, Pakistan, the Middle East and worldwide.
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About the Data Storage Converter
Data sizes are quoted in bytes, kilobytes, megabytes, gigabytes and terabytes, and it is easy to lose track of how they relate — is that 500 MB file going to fit, and how many photos will a 1 TB drive hold? Converting between them makes storage and downloads make sense.
This Data Storage Converter switches between data units instantly, so you can size files, drives and downloads with confidence.
How to use the Data Storage Converter
- Enter the data size value.
- Choose the unit you are converting from.
- Choose the unit you are converting to.
- Read the converted size instantly.
Key features of the Data Storage Converter
- Converts bytes, KB, MB, GB and TB
- Clear, instant results
- Two-way conversion
- Handy for storage and downloads
- Private — calculated in your browser
How the Data Storage Converter works
Every conversion uses the exact, internationally agreed factors defined by the International System of Units (SI) and recognised standards bodies. Temperature conversions apply the correct formulas rather than simple multipliers, and results retain full precision so they are suitable for scientific, engineering and everyday use alike.
All conversions are calculated instantly in your browser.
Tips & best practices
- Each step up is 1,024 units in the binary standard (or 1,000 in the decimal one) — the difference explains why a "1 TB" drive shows less usable space.
- When checking whether a file will fit, convert everything to the same unit first.
- Storage marketing often uses decimal units, while operating systems often use binary, so numbers can differ slightly.
Standards & accuracy
Uses precise SI and internationally agreed conversion factors for accurate, standards-based results.
Results are accurate to standard conversion factors. For everyday use you can round sensibly; for scientific, medical or engineering work, keep the full precision the tool provides.
Who uses the Data Storage Converter?
- Sizing files against a storage limit
- Estimating download sizes and times
- Planning drive and cloud capacity
- Understanding data usage
Privacy & security
The Data Storage Converter runs entirely inside your web browser. Your data — whether that is a file, figures or text — is processed on your own device and is never uploaded to a server, stored or shared. There is no signup and no account, so you can use it as often as you like while keeping full control of your information. This makes it a safe choice even for confidential and sensitive work.
Why choose Toolinza?
- 100% free — no hidden charges, watermarks or usage caps.
- Private & secure — your data stays on your device.
- Standards-compliant — accurate results suitable for the UK, USA, Canada, Australia, EU, India, Pakistan, the Middle East and worldwide.
- Works everywhere — desktop, tablet and mobile.
Frequently asked questions
There are 1,024 megabytes in a gigabyte using the binary standard, or 1,000 using the decimal standard. The converter handles the conversion for you.
Manufacturers often quote capacity in decimal units while your operating system counts in binary, so a "1 TB" drive shows a bit less usable space.
Yes. It converts between bytes, KB, MB, GB and TB in any direction.
Yes. The Data Storage Converter is completely free with no signup, no watermarks and no usage limits. Toolinza is supported by unobtrusive advertising so every tool stays free.
Absolutely. This tool runs entirely in your browser — your data and files are never uploaded to any server, so everything stays private on your own device.
No. The Data Storage Converter works instantly in any modern web browser on desktop, tablet and mobile — Windows, macOS, Linux, Android and iOS.