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Data storage converter

Decimal units use powers of 1,000; binary units (KiB, MiB, GiB) use powers of 1,024. Both are shown and labeled.

0.001

1 MB = 0.001 GBGB = MB × 0.001 · shown to 6 significant figures

Precision

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Popular conversions

Gigabytes to megabytesTier 01 gigabyte = 1,000 megabytes exactly. Type in either box; the other updates as you go.Kilobytes to megabytesTier 01 kilobyte = 0.001 megabytes exactly. Type in either box; the other updates as you go.Megabytes to gigabytesTier 01 megabyte = 0.001 gigabytes exactly. Type in either box; the other updates as you go.Megabytes to kilobytesTier 01 megabyte = 1,000 kilobytes exactly. Type in either box; the other updates as you go.Gigabytes to terabytesTier 01 gigabyte = 0.001 terabytes exactly. Type in either box; the other updates as you go.Terabytes to gigabytesTier 01 terabyte = 1,000 gigabytes exactly. Type in either box; the other updates as you go.Bits to bytesTier 01 bit = 0.125 bytes exactly. Type in either box; the other updates as you go.Bytes to kilobytesTier 01 byte = 0.001 kilobytes exactly. Type in either box; the other updates as you go.Gibibytes to gigabytesTier 01 gibibyte = 1.073741824 gigabytes exactly. Type in either box; the other updates as you go.

Storage sizes come in two systems that share similar names. Drive makers, network speeds and the SI use decimal prefixes: 1 GB is 1,000,000,000 bytes. Many operating systems and memory specs count in powers of two: 1 GiB is 1,073,741,824 bytes, which Windows labels "GB". The IEC introduced KiB, MiB and GiB in 1998 so the two could be told apart. This is why a "1 TB" drive shows as about 931 GB in Windows.

This converter treats kB, MB, GB and TB as decimal and KiB, MiB, GiB and TiB as binary. The most searched pairs have their own pages with worked examples, listed above.