# Data Size Converter

Why your 1 TB drive shows 931 GB.

URL: https://shortformkit.com/data-size-converter/
Updated: 2026-10-13

Drive makers count in 1000s (1 GB = 1,000,000,000 bytes); many operating systems count in 1024s (GiB). That gap is why a new drive looks smaller.

Results are estimates for general information, not medical or financial advice.

## How it works

1. **Enter your values** The result updates as you type.
2. **Switch units if needed** Metric or US units, where it applies.
3. **Read the result** Nothing is stored or sent anywhere.

## FAQ

**Is it free?**
Yes. No account, no limits.

**Is my data stored?**
No. The calculation happens in your browser and nothing is sent to a server.


Source: Shortform Kit (https://shortformkit.com/data-size-converter/). Free, no login.