UNDERSTANDING FILE SIZES

Can"t tell your bits from your bytes? Read on khổng lồ learn the difference và figure out what broadband speed is right for your home page.

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Connection speeds & data sizes are measured differently, but people tkết thúc to lớn informally refer to lớn them both as "megs". The problem is that the word "meg" actually refers lớn 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, to lớn be exact, with eight bits in every byte. So there are eight megabits (Mb) in every megabyte (MB), và eight gigabits (Gb) in every gigabyte (GB).

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Bits, bytes and broadb& speeds

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

Data sizes are usually measured in "bytes", and broadband speeds are measured in "bits". Based on the file size và your connection tốc độ, you can estimate how long it"ll take you to tải về something.

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Let"s say you find a tệp tin online that is 17 megabytes (MB) in kích cỡ, & you want khổng lồ download it using your 17 megabit per second (Mbps) broadbvà 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 — và with a perfectly consistent tốc độ — it should take eight seconds khổng lồ download.

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

How can I tell the difference between a bit và a byte?

From how it"s written. A byte is an uppercase "B" và 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.

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There is one exception khổng lồ this, of course, and 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 khổng lồ figure out based on comtháng sense: an uppercase "B" is physically larger than a lowercase "b", & a byte is larger than a bit.

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Other tệp tin sizes to lớn know about

While there"s a range of different tệp tin sizes, most of us only need to lớn know a few different prefixes. Here are the most common 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 khổng lồ the other, you can multiply or divide by eight. For example, if you want khổng lồ transfer 38MB across a 38 Mbps connection, it will take eight seconds.

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