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What Does MB Mean? Download Article Co-authored by Cher Gopman and Janice Tieperman
Last Updated: February 24, 2025 Fact Checked
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What does MB over text?
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What does MB mean in technology?
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How to Use MB
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Alternate Meanings
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This article was co-authored by Cher Gopman and by wikiHow staff writer, Janice Tieperman. Cher Gopman is the Founder of NYC Wingwoman LLC, a date coaching service based in New York City. 'NYC Wingwoman' offers matchmaking, wingwoman services, 1-on-1 Coaching, and intensive weekend bootcamps. Cher is a Certified Life Coach, a former psychiatric nurse, and her work has been featured on Inside Edition, Fox, ABC, VH1, and The New York Post. There are 10 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 145,048 times.
If you’re not totally sure what the abbreviation “MB” means, you’re definitely not alone. This versatile acronym can have widely different meanings depending on if it’s used conversationally or in a tech-related context. We’ll give you the lowdown on all the most common definitions for MB, so you can decipher its meaning in your own chats and social media feeds.
MB Texting Meaning
Usually, MB stands for “my bad” when texting and is used to apologize for minor mix-ups or accidents. It typically isn’t used for important incidents when a more formal apology may be expected. Sometimes, MB can also be short for “maybe,” especially when asking a “yes or no” question.
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What does MB over text?
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1 MB typically means “My Bad” when sent over chat. Maybe your friend mixed up the dates for an upcoming event, or assumed something that they shouldn’t have. For minor mix-ups and confusion, MB is an easy way to apologize without making a big deal out of the situation.[1]XResearch source
Person 1: “We’re meeting at 7, right?”Person 2: “Nope. 8:30”Person 1: “Whoops! MB”
2 MB can occasionally mean “maybe.” If you dropped a “yes or no” question in the chat and got a “MB” in response, there’s a good chance that your friend is saying “maybe” instead of giving a definitive answer.[2]XResearch source
You: “Wanna go to the movies tomorrow?”Them: “Idk, mb”
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What does MB mean in technology?
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1 MB usually stands for “megabyte.” A megabyte is a digital unit of measurement for data. A lot of times, MB is used to describe how much data a device can hold. In other instances, it can stand for download speed. For reference, a MB has 1 million bytes, a gigabyte (GB) holds 1,000 MBs, and a terabyte (TB) holds 1,000 GBs.[3]XResearch source
“Dang, your hard drive only has 500 MB of space.”
2 Mb can also be short for “megabit.” A megabit is also a digital unit of measurement for data, but it’s way smaller than a megabyte—in fact, 8 megabits can fit in a single megabyte! To help differentiate the two, a megabyte is abbreviated as MB (all capitalized) and a megabit is abbreviated as Mb (with the “b” lowercase).[4]XResearch source
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How to Use MB
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1 Say MB instead of “my bad” to take responsibility for something you did wrong. MB can be a handy way to apologize/acknowledge your wrongdoing in a minor mix-up.
“Sorry for eating the last yogurt. That’s MB”
Person 1: “Did you forget to top off the gas tank?”Person 2: “Oh crap, that totally slipped my mind. MB!”
2 Use MB as “maybe” to express potential interest in something. Not ready to send a definite “yes” or “no” to someone’s request just yet? MB gives you a little bit of wiggle room without having to offer full commitment.
Them: “You up for grabbing drinks tonight?”You: “Idk, mb”
3 Drop some tech jargon like “megabyte” or “megabit” with MB. In this day and age, there’s a good chance that you’ll be dealing with GBs and TBs rather than simple MBs. Still, if megabytes or megabits do happen to pop up in your technological convo, use MB or Mb to abbreviate the terms, respectively.
“Think I might have a storage problem…my 1 TB hard drive only has 750 MB of space left 😬”
"The capacity is only 2 Mb per second."
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Alternate Meanings
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1 MB can be shorthand for Manitoba, the Canadian province. See an address label with MB written on the bottom? Chances are, the address corresponds to someplace in Manitoba, Canada.[5]XResearch source
500 Main StreetWinnipeg, MBR3B 3M9
Manitoba can also be abbreviated as “Man.” in different instances.
2 MB can also stand for “Bachelor of Medicine.” If someone earns a Bachelor of Medicine degree, it’s often abbreviated as “MB.” If you see “MB” in an academic scenario, it probably refers to this.[6]XResearch source
Believe it or not, MB doesn’t actually stand for “Master of Business”—the acronym for that degree is “MBA.”[7]XResearch source
3 MB can sometimes mean “Might Be” in a casual conversation. Not totally sure about something? Use MB to share your thoughts without sounding super definitive.[8]XResearch source
Them: “Isn’t she in that CW show?”You: “Idk, she MB”
4 MB can occasionally mean “Message Board.” A message board is just an online community where people can discuss a specific topic or franchise with fellow enthusiasts. If you see a message like “I just posted in the MB” or “Check the MB,” the poster is probably talking about a message board.[9]XResearch source
“Be sure to read the rules and regulations thread before posting anything on the MB!”
5 MB means “millibar” in the meteorlogical field. A millibar is metric unit of air pressure, and is often used by meteorologists, or people who study the weather. If you’re reading a weather report or weather-related article and come across MB, it’s safe to assume they’re talking about the unit of measurement.[10]XResearch source
“There are around 1013.25 MBs in 1 standard atmosphere.”
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Co-authored by: Cher Gopman Social Coach This article was co-authored by Cher Gopman and by wikiHow staff writer, Janice Tieperman. Cher Gopman is the Founder of NYC Wingwoman LLC, a date coaching service based in New York City. 'NYC Wingwoman' offers matchmaking, wingwoman services, 1-on-1 Coaching, and intensive weekend bootcamps. Cher is a Certified Life Coach, a former psychiatric nurse, and her work has been featured on Inside Edition, Fox, ABC, VH1, and The New York Post. This article has been viewed 145,048 times. How helpful is this? Co-authors: 5Updated: February 24, 2025 Views: 145,048 Categories: Texting
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Download Article Co-authored by Cher Gopman and Janice Tieperman 
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Co-authored by: Cher Gopman Social Coach This article was co-authored by Cher Gopman and by wikiHow staff writer, Janice Tieperman. Cher Gopman is the Founder of NYC Wingwoman LLC, a date coaching service based in New York City. 'NYC Wingwoman' offers matchmaking, wingwoman services, 1-on-1 Coaching, and intensive weekend bootcamps. Cher is a Certified Life Coach, a former psychiatric nurse, and her work has been featured on Inside Edition, Fox, ABC, VH1, and The New York Post. This article has been viewed 145,048 times. How helpful is this? Co-authors: 5 Updated: February 24, 2025 Views: 145,048 Categories: Texting 
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1 MB typically means “My Bad” when sent over chat. Maybe your friend mixed up the dates for an upcoming event, or assumed something that they shouldn’t have. For minor mix-ups and confusion, MB is an easy way to apologize without making a big deal out of the situation.[1] 
2 MB can occasionally mean “maybe.” If you dropped a “yes or no” question in the chat and got a “MB” in response, there’s a good chance that your friend is saying “maybe” instead of giving a definitive answer.[2] 
1 MB usually stands for “megabyte.” A megabyte is a digital unit of measurement for data. A lot of times, MB is used to describe how much data a device can hold. In other instances, it can stand for download speed. For reference, a MB has 1 million bytes, a gigabyte (GB) holds 1,000 MBs, and a terabyte (TB) holds 1,000 GBs.[3] 
2 Mb can also be short for “megabit.” A megabit is also a digital unit of measurement for data, but it’s way smaller than a megabyte—in fact, 8 megabits can fit in a single megabyte! To help differentiate the two, a megabyte is abbreviated as MB (all capitalized) and a megabit is abbreviated as Mb (with the “b” lowercase).[4] Advertisement 
1 Say MB instead of “my bad” to take responsibility for something you did wrong. MB can be a handy way to apologize/acknowledge your wrongdoing in a minor mix-up. 
2 Use MB as “maybe” to express potential interest in something. Not ready to send a definite “yes” or “no” to someone’s request just yet? MB gives you a little bit of wiggle room without having to offer full commitment. 
3 Drop some tech jargon like “megabyte” or “megabit” with MB. In this day and age, there’s a good chance that you’ll be dealing with GBs and TBs rather than simple MBs. Still, if megabytes or megabits do happen to pop up in your technological convo, use MB or Mb to abbreviate the terms, respectively. 
1 MB can be shorthand for Manitoba, the Canadian province. See an address label with MB written on the bottom? Chances are, the address corresponds to someplace in Manitoba, Canada.[5] 
2 MB can also stand for “Bachelor of Medicine.” If someone earns a Bachelor of Medicine degree, it’s often abbreviated as “MB.” If you see “MB” in an academic scenario, it probably refers to this.[6] 
3 MB can sometimes mean “Might Be” in a casual conversation. Not totally sure about something? Use MB to share your thoughts without sounding super definitive.[8] 
4 MB can occasionally mean “Message Board.” A message board is just an online community where people can discuss a specific topic or franchise with fellow enthusiasts. If you see a message like “I just posted in the MB” or “Check the MB,” the poster is probably talking about a message board.[9] 
5 MB means “millibar” in the meteorlogical field. A millibar is metric unit of air pressure, and is often used by meteorologists, or people who study the weather. If you’re reading a weather report or weather-related article and come across MB, it’s safe to assume they’re talking about the unit of measurement.[10]