KB and also kB refer to kilobyte - a unit of details or computer storage equal to one of two people 1,024 bytes (210) or 1,000 bytes (103), relying on context.

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MB describes megabyte - a unit of information or computer storage equal to one of two people 1,048,576 bytes (220) or 1,000,000 bytes (106), depending on context. A megabyte has around 1,000 (or 1,024 to be precise) kilobytes.

Comparison chart

KB versus MB comparison chart
KBMBStands for
Kilobyte Megabyte

Difference in between kB and kb, MB and Mb

kb is kilobits and also kB is kilobytes. If MB is megabytes, Mb refers to Megabits. 1 byte has 8 bits. Document sizes space usually to express in KB and MB conversely, kb and also Mb are regularly used come express data transport speeds (such together a 54 Mbps wireless router or 3G or 4G connection speeds).

All units of info volume

A little bit is the the smallest unit of information. The is either a 0 or 1. A byte is the following smallest unit, and is same to 8 bits. All various other units of details are obtained from bits and also bytes, and also represent a certain variety of bits (or bytes).

Each unit has a prefix and also suffix. The suffix denotes whether the unit is representing bits or bytes; the prefix denotes how many bits/bytes room being conveyed. There space two types of prefixes:

Kilo-, mega-, giga-, tera-, peta-: these space the prefixes many widely used. They represent aggregations in devices of 1,000. Kilo- is 10001 Mega- is 10002 i.e., 1 million Giga- is 10003 i.e., 1 billion Tera- is 10004 i.e., 1 sunshine Peta- is 10005 i.e., 1 quadrillion Kibi-, mebi-, gibi-, tebi-, pebi-:these prefixes signify aggregations in devices of 1024. Due to the fact that computing supplies a binary system, the totals for units of storage are always in powers of 2. 1024 is 210. Kibi- is 10241 Mebi- is 10242 Gibi- is 10243 Tebi- is 10244 Pebi- is 10245

Applying this pattern we deserve to see that

Unit Base strength Value
Kilobit (Kb or kb) 1000 1 1000 bits
Megabit (Mb) 1000 2 10002 bits; or 1000 kilobits
Gigabit (Gb) 1000 3 10003 bits; or 1000 megabits
Terabit (Tb) 1000 4 10004 bits; or 1000 gigabits
Kilobyte (KB or kB) 1000 1 1000 bytes
Megabyte (MB) 1000 2 10002 bytes; or 1000 kilobytes
Gigabyte (GB) 1000 3 10003 bytes; or 1000 megabytes
Terabyte (TB) 1000 4 10004 bytes; or 1000 gigabytes
Kibibyte (KiB) 1024 1 1024 bytes
Mebibyte (MiB) 1024 2 10242 bytes; or 1024 kibibytes
Gibibyte (GiB) 1024 3 10243 bytes; or 1024 mebibytes
Tebibyte (TiB) 1024 4 10244 bytes; or 1024 gibibytes

Kbps vs. Mbps and also Other Data price Units

Data rate units are stood for as details per second. Because that example, Kilobits per second uses the prize kbps, kbit/s or kb/s; Kilobytes per second is written as kB/s and also Mbps means Megabit per second.

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The notation complies with this convention:

use lower-case b for bits and upper-case B for bytes. E.g. MB/s is megabyte per second and Mbps is megabit every second. K stands for kilo and may be used in top or reduced case. M means mega, G for giga, T for tera. For this reason 1 Gbps is 1 gigabit every second. These units room aggregated in multiples the 1000. Ki represents kibi, therefore KiB/s is kibibytes per second while Kib/s or Kibit/s is kibibit per second. Similarly Mi represents Mebi, Gi for Gibi, and Ti for Tebi. The units are aggregated in strength of 2, particularly 210.SymbolNamebit per second
bit/sbit every second1
B/sbyte every second8
kbit/skilobit every second1,000
Kibit/skibibit every second1,024
kB/skilobyte every second8,000
KiB/skibibyte every second8,192
Mbit/smegabit every second1,000,000
Mibit/smebibit per second1,048,576
MB/smegabyte per second8,000,000
MiB/smebibyte per second8,388,608
Gbit/sgigabit per second1,000,000,000
Gibit/sgibibit per second1,073,741,824
GB/sgigabyte per second8,000,000,000
GiB/sgibibyte per second8,589,934,592
Tbit/sterabit every second1,000,000,000,000
Tibit/stebibit every second1,099,511,627,776
TB/sterabyte every second8,000,000,000,000
TiB/stebibyte per second8,796,093,022,208