Why is my 1TB drive only 931GB?

Hard drive makers define 1TB as 1 trillion bytes (1000^4). Windows defines 1TB as 1024^4 bytes. The math results in the OS reporting a smaller number even though the physical bytes are providing.

In binary computing (used by this tool), there are 1,024 Megabytes in 1 Gigabyte.

A Petabyte (PB) is 1,024 Terabytes. It is a massive amount of storage, enough to hold over 13 years of HD video.

Is limits/bandwidth measured in Bytes?

Usually, network speed is measured in 'bits' (Mbps), while storage is 'Bytes' (MB). 1 Byte = 8 bits. This tool converts storage Bytes.

Data Converter

Data Converter Overview

Convert Bytes, KB, MB, GB, TB

The Data Storage Converter breaks down the confusion between binary and decimal storage definitions. It translates between Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes, and even Petabytes. Have you ever noticed your '1 TB' hard drive only shows '931 GB' in Windows? That's because manufacturers use decimal math (1 GB = 1000 MB), while computers use binary math (1 GB = 1024 MB). This tool uses the standard Binary (1024) system generally used by operating systems, helping you plan real-world file storage.

How to Use Data Converter

Enter the number (file size or capacity).
Select the starting unit (e.g., GB).
Select the target unit (e.g., MB).
View the converted size.

Frequently Asked Questions

Why is my 1TB drive only 931GB?: Hard drive makers define 1TB as 1 trillion bytes (1000^4). Windows defines 1TB as 1024^4 bytes. The math results in the OS reporting a smaller number even though the physical bytes are providing.
How many MB in a GB?: In binary computing (used by this tool), there are 1,024 Megabytes in 1 Gigabyte.
What is a Petabyte?: A Petabyte (PB) is 1,024 Terabytes. It is a massive amount of storage, enough to hold over 13 years of HD video.
Is limits/bandwidth measured in Bytes?: Usually, network speed is measured in 'bits' (Mbps), while storage is 'Bytes' (MB). 1 Byte = 8 bits. This tool converts storage Bytes.

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