Converters
Megabytes Converter
Convert data sizes between bits, bytes, KB/MB/GB (decimal SI) and KiB/MiB/GiB.
Free to use — no sign-up or login.
A megabyte on this page is 1,000,000 bytes. A mebibyte is 1,048,576 bytes. One decimal gigabyte displays as 0.931323 gibibytes, which is why a drive can look smaller when the system counts by 1024.
Binary-only steps, KiB through TiB, are on the data storage converter. Download rates in megabits are a different page.
Powers of ten and powers of two
KB, MB, GB, and TB step by 1000. KiB, MiB, and GiB step by 1024. One gibibyte is 1,073,741,824 bytes. One gigabyte is 1,000,000,000 bytes.
Bits in the same list
A bit is one eighth of a byte. The bit row is for that factor, not for an ISP speed. Speeds in Mbit/s use the download speed page.
Worked example: 1 GB
From gigabytes (10⁹) to gibibytes, 1 GB displays as 0.931323 GiB. One mebibyte is 1,048,576 bytes, and one megabyte is 1,000,000 bytes.
\[ 1\,\mathrm{GB}=0.931323\,\mathrm{GiB} \]
Frequently asked questions
What is 1 GB in GiB?
0.931323 GiB.
How many bytes are in a megabyte here?
1,000,000. A mebibyte is 1,048,576 bytes.
Why does a drive look smaller?
A decimal gigabyte is less than a gibibyte, so a binary report shows a smaller count.
Is KB the same as KiB?
No. KB is 1000 bytes and KiB is 1024 bytes.
Does this convert megabits per second?
No. Use the download speed converter for bit rates.
References
Assumptions and limitations
SI and IEC prefixes as labeled. No download-time estimate. Six significant digits on the result.