Data Storage Converter
Convert between bits, bytes, KB, MB, GB, TB and the binary KiB, MiB, GiB, TiB, with a full table. Handles decimal and binary units. Runs in your browser.
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Convert Any Data Size Instantly
This free data storage converter changes a data size from one unit to another, right in your browser. Enter a value, pick the units, and get the answer with a full table. It covers bits and bytes, the decimal KB, MB, GB, TB (powers of 1000), and the binary KiB, MiB, GiB, TiB (powers of 1024) that operating systems often use.
Everything runs in your browser, with no signup. It clears up the common confusion between a drive's advertised size and the size your computer reports.
How to Use the Data Storage Converter
- 1Type the data size value.
- 2Choose the unit you are converting from.
- 3Choose the unit you want to.
- 4Read the answer, or open the table to see every unit.
Why Use MakeToolz's Data Storage Converter?
Decimal and binary
Both the ×1000 KB, MB, GB and the ×1024 KiB, MiB, GiB units.
Bits and bytes
Convert down to bits and bytes for networking and low-level work.
Full conversion table
See your size in every unit at once, not just the one you picked.
Explains the mismatch
Shows why a 1 TB drive reports as about 931 GiB on your computer.
100% in your browser
No signup and nothing uploaded; it runs locally.
Free and simple
A clean data size converter, free with no limits.
Decimal vs Binary Data Units
Data storage is measured two ways, which causes endless confusion. Storage makers use decimal units where a kilobyte is 1000 bytes, so a drive labeled 1 TB holds one trillion bytes. Operating systems usually use binary units where a kibibyte is 1024 bytes, so that same drive shows as about 931 GiB. This converter includes both the decimal KB, MB, GB, TB and the binary KiB, MiB, GiB, TiB, and shows your value in every unit at once so the mismatch is easy to see.
Because it runs entirely in your browser, it is fast and private, with no signup and no limit.
Data Unit Reference
| Unit | Equals | System |
|---|---|---|
| 1 KB | 1,000 bytes | Decimal |
| 1 KiB | 1,024 bytes | Binary |
| 1 GB | 1,000 MB | Decimal |
| 1 GiB | 1,024 MiB | Binary |
People Also Ask
How many MB are in a GB?
There are 1000 MB in a GB using decimal units, or 1024 MiB in a GiB using binary units. This converter supports both.
How many bytes are in a kilobyte?
A kilobyte (KB) is 1000 bytes in the decimal system, while a kibibyte (KiB) is 1024 bytes in the binary system.
Why is my hard drive smaller than advertised?
The drive is not smaller. It is measured in decimal units when sold and binary units by your operating system, so a 1 TB drive shows as about 931 GiB.
What is a bit versus a byte?
A byte is 8 bits. Bits are often used for network speeds, while bytes are used for file and storage sizes.
Is the data storage converter accurate?
Yes. It uses exact factors for both decimal and binary units, so the results are precise.
Which unit does Windows use?
Windows reports storage in binary units but labels them as GB, which is really GiB. That is why sizes look smaller than the box says.
Frequently Asked Questions
How do I convert MB to GB?
Why does my 1 TB drive show as 931 GB?
What is the difference between KB and KiB?
Is the data storage converter free?
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