File / Disk Size Converter

Enter a number in the From field, select units, and then click Convert.


1 GB = 0.001 TB

Other units:

Byte based with decimal-multiple prefixes (powers of 10):
KB (kilobyte)
MB (megabyte)
GB (gigabyte)
TB (terabyte)
Byte based with binary-multiple prefixes (powers of 2):
KiB (kibibyte)
MiB (mebibyte)
GiB (gibibyte)
TiB (tebibyte)

How to use:
Enter initial file or disk size value you'd like to convert in the From filed, select initial and target measurement units, and then click the Convert button.
For your convenience this tool will also convert the entered value into other units often used in the fields of data processing, computer storage, backup/recovery, etc.


Tebibyte (TiB), gibibyte (GiB), mebibyte (MiB), kibibyte (KiB) are standard units used in the field of data processing and data transmission. Tebibyte, gibibyte, mebibyte, kibibyte are defined as powers of 2.
Tebibyte, gibibyte, mebibyte, kibibyte are closely related to terabyte (TB), gigabyte (GB), megabyte (MB), and kilobyte (KB) respectively, which are defined as powers of 10 in accordance with the International System of Units (SI).

Examples and comparisons with SI prefixes
one kibibit1 Kibit = 210 bit = 1024 bit
one kilobit1 kbit = 103 bit = 1000 bit
one mebibit1 Mibit = 220 bit = 1,048,576 bit
one megabit1 Mbit = 106 bit = 1,000,000 bit
one mebibyte1 MiB = 220 Byte = 1,048,576 Byte
one megabyte1 MB = 106 Byte = 1,000,000 Byte
one gibibyte1 GiB = 230 Byte = 1,073,741,824 Byte
one gigabyte1 GB = 109 Byte = 1,000,000,000 Byte