Data Converter

How Data Converter works

Convert digital storage between bytes, KB, MB, GB and TB, and between decimal and binary units. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

Decimal and binary in the same table

This converter deliberately includes both families: KB, MB, GB and TB are powers of 1,000, while KiB, MiB and GiB are powers of 1,024. They are different units with different names, not different conventions for the same name — although everyday usage ignores that.

The base here is the megabyte, so B is 0.000001 MB and TB is 1,000,000 MB. The binary units sit alongside at 0.001024 MB for a KiB.

Why a 1 TB drive shows as 931 GB

A drive sold as 1 TB holds 1,000,000,000,000 bytes. Windows divides by 1,024 three times and prints “GB”, giving 931. The drive is exactly as advertised; the label is using decimal names for binary maths.

Use this converter to check a claim: 1 TB = 1,000 GB decimal = 931.32 GiB. Both numbers describe the same disk.

Where each appears

Storage marketing, mobile data plans and network speeds use decimal. RAM, file properties on Windows and most database sizes use binary. Cloud billing is usually decimal, which is one reason a “1 TB” allowance seems to disappear faster than expected.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions