How the data storage converter works
This calculator uses the binary (1024-based) convention common in operating systems and RAM specifications:
1 KB = 1,024 B
1 MB = 1,024 KB
1 GB = 1,024 MB
1 TB = 1,024 GB
1 MB = 1,024 KB
1 GB = 1,024 MB
1 TB = 1,024 GB
Note: storage manufacturers often use the decimal (1000-based) convention instead, which is why a "1TB" drive shows slightly less space in an OS that reports binary TB.
Step-by-step guide
- Enter the value you want to convert.
- Choose the unit you're converting from and to.
- The result updates instantly as you type.
Quick reference
| Unit | Bytes |
|---|---|
| 1 KB | 1,024 B |
| 1 MB | 1,048,576 B |
| 1 GB | 1,073,741,824 B |
| 1 TB | 1,099,511,627,776 B |
Frequently asked questions
Drive manufacturers typically use decimal units (1 TB = 1,000,000,000,000 bytes), while operating systems typically display binary units (1 TB = 1,099,511,627,776 bytes) — the same physical drive shows a smaller number in the OS due to this convention mismatch, not missing storage.
This calculator uses the binary (1024-based) convention, matching how most operating systems report file and drive sizes.