# Mb và gb

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Connection speeds and data sizes are measured differently, but people tend lớn informally refer to them both as "megs". The problem is that the word "meg" actually refers khổng lồ two very different values: megabits and megabytes. But aren"t they the same thing?

Actually no, there"s a big difference between a bit and a byte. A byte is much bigger — eight times bigger, lớn be exact, with eight bits in every byte. So there are eight megabits (Mb) in every megabyte (MB), and eight gigabits (Gb) in every gigabyte (GB).

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## Bits, bytes & broadb& speeds

You may be wondering how this relates to you and your broadb& tốc độ.

Data sizes are usually measured in "bytes", and broadbvà speeds are measured in "bits". Based on the tệp tin size and your connection tốc độ, you can estimate how long it"ll take you to download something.

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Let"s say you find a tệp tin online that is 17 megabytes (MB) in kích cỡ, & you want lớn download it using your 17 megabit per second (Mbps) broadband connection. This won"t take one second; it will take eight times one second because a megabyte is eight times bigger than a megabit. So in theory — and with a perfectly consistent speed — it should take eight seconds to download.

Before you start reaching for your calculator, read our guide khổng lồ download times. We"ve sầu pulled together a danh mục of the most comtháng broadb& speeds và tệp tin sizes lớn give you an idea of how long it will take lớn tải về films, TV series, songs and more.

## How can I tell the difference between a bit and a byte?

From how it"s written. A byte is an uppercase "B" and a bit is a lowercase "b". If it says MB, all capitals, then it is a megabyte. If it says Mb, then it is a megabit.

There is one exception to this, of course, và it is the symbol for kilobit, which is "kb", all lowercase. But these file sizes are so small nowadays that you shouldn"t really see much of them.

It"s easy to figure out based on comtháng sense: an uppercase "B" is physically larger than a lowercase "b", & a byte is larger than a bit.

## Other tệp tin sizes to lớn know about

While there"s a range of different tệp tin sizes, most of us only need to know a few different prefixes. Here are the most comtháng ones.

KB, MB, GB - A kilobyte (KB) is 1,024 bytes. A megabyte (MB) is 1,024 kilobytes. A gigabyte (GB) is 1,024 megabytes. A terabyte (TB) is 1,024 gigabytes.

kb, Mb, Gb - A kilobit (kb) is 1,024 bits. A megabit (Mb) is 1,024 kilobits. A gigabit (Gb) is 1,024 megabits. A terabit (Tb) is 1,024 gigabits.

Don"t forget! There are eight bits in a byte, so khổng lồ translate from one lớn the other, you can multiply or divide by eight. For example, if you want to lớn transfer 38MB across a 38 Mbps connection, it will take eight seconds.

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