Data Storage Converter

Convert bytes, KB, MB, GB, TB and their binary equivalents.

Value

Decimal places

From

1 GB in gibibyte

0.931323 GiB

1 GB = 0.93132257 GiB

1 GB expressed in every digital storage unit.
Unit	Symbol	Value
Bit	b	8,000,000,000
Kilobit	kb	8,000,000
Megabit	Mb	8,000
Gigabit	Gb	8
Byte	B	1,000,000,000
Kilobyte	kB	1,000,000
Megabyte	MB	1,000
Gigabyte	GB	1
Terabyte	TB	0.001000
Petabyte	PB	0.000001
Kibibyte	KiB	976,562.500000
Mebibyte	MiB	953.674316
Gibibyte	GiB	0.931323
Tebibyte	TiB	0.000909
Pebibyte	PiB	0.000001

What does Data Storage Converter do?

Convert digital storage units with a strict separation between decimal SI units (kB = 1000 bytes) and binary IEC units (KiB = 1024 bytes). That distinction is why a "1 TB" drive shows as 931 GB in Windows.

How to Use Data Storage Converter

1
Enter a sizeAny value.
2
Pick the unitNote whether it is decimal (MB) or binary (MiB).
3
Read every unitBoth systems are shown side by side.

Key Features

Decimal SI units and binary IEC units clearly separated
Bits as well as bytes, for bandwidth calculations
Explains the discrepancy between advertised and reported drive sizes
All units shown at once
Common file size reference table

Frequently Asked Questions

Why does my 1 TB drive show as 931 GB?

Manufacturers use decimal units, so 1 TB is 1,000,000,000,000 bytes. Windows reports in binary units but labels them "GB", and that many bytes is 931 GiB. Nothing is missing — the two systems just count differently.

What is the difference between MB and MiB?

MB is 1,000,000 bytes; MiB is 1,048,576 bytes. The IEC introduced the binary prefixes in 1998 precisely to end the ambiguity, though everyday usage still mixes them.

Why is my broadband slower than advertised?

Because bandwidth is quoted in megabits and file sizes in megabytes. There are eight bits in a byte, so a 100 Mbps connection downloads at about 12.5 MB/s at best.

How many bytes in a gigabyte?

1,000,000,000 in decimal, or 1,073,741,824 for a gibibyte. Storage vendors and network equipment use decimal; operating systems and memory use binary.