This article will show you how to convert data from megabytes (MB) to terabytes (TB). We will cover essential definitions, provide examples, share relevant formulas, and present tables, along with answers to common questions.
Definitions of MB and TB
Let’s get started by understanding the key definitions and differences between Megabyte
and Terabyte
. Understanding these terms will allow you to perform conversions confidently.
What is a Megabyte (MB)?
A megabyte (MB
) is a unit of measurement for data storage used to measure files or memory that are large, typically between one million and one billion bytes.
It has symbols or abbreviations such as MB
, Mbyte
, MiB
, or Mibyte
.

When using International System of Units (SI) prefixes[1], based on powers of 10, a megabyte (MB) equals 1,000,000 bytes.
1 MB = 103 KB = 1,000 KB
1 MB = 106 B = 1,000,000 B
When using International Electrotechnical Commission (IEC) binary prefixes[2], which are based on powers of 2, a megabyte (MB) equals 1,048,576 bytes.
1 MiB = 210 KiB = 1,024 KiB
1 MiB = 220 B = 1,048,576 B
For general communication, you can use SI prefixes as they are familiar with the metric system, while for more accurate contexts, you should use IEC binary prefixes.
What is a Terabyte (TB)?
A terabyte (TB
) is a unit of measurement for data storage used to measure hard drive capacity, files, or memory that are very large, typically between one trillion and one quadrillion bytes.
It has symbols or abbreviations such as TB
, Tbyte
, TiB
, or Tibyte
.

When using International System of Units (SI) prefixes[1], which are based on powers of 10, a terabyte (TB) equals 1,000,000,000,000 bytes.
1 TB = 106 MB = 1,000,000 MB
1 TB = 1012 B = 1,000,000,000,000 B
When using International Electrotechnical Commission (IEC) binary prefixes[2], which are based on powers of 2, a terabyte (TB) equals 1,099,511,627,776 bytes.
1 TiB = 220 MiB = 1,048,576 MiB
1 TiB = 240 B = 1,099,511,627,776 B
MB to TB formula
Let’s take a closer look at the conversion formula so you can carry out these conversions independently, whether using a calculator or doing it manually with pencil and paper.
Using decimal (SI) prefixes
The table below shows all the SI prefixes and the associated symbols, multipliers, and colloquials.

The mega-
prefix in the International System of Units (SI) represents a multiplier of 106 (1,000,000)
and tera-
represents a multiplier of 1012 (1,000,000,000,000)
.
So, to convert from megabytes to terabytes, divide the number of megabytes (NMB
) by 1,000,000
.
NTB = NMB × 10-6 = NMB ÷ 1,000,000
Or remember the MB-to-TB
conversion factor: 1 MB = 10-6 = 0.000001 TB
Using binary (IEC) prefixes
The IEC defined a set of binary prefixes to avoid confusion with the decimal-based SI prefixes. The table below shows all the binary prefixes, associated symbols, and their multipliers.

The mebi-
prefix in the International Electrotechnical Commission (IEC) represents a multiplier of 220 (1,048,576)
and tebi-
represents a multiplier of
.240 (1,099,511,627,776)
So, to convert from mebibytes to tebibytes, divide the number of mebibytes (NMiB
) by 1,048,576
.
NTiB = NMiB × 2-20 = NMiB ÷ 1,048,576
Or remember the MiB-to-TiB
conversion factor: 1 MiB = 2-20 = 0.00000095367431640625 TiB
Examples
Now, let's take a look at an example that illustrates the calculations required to convert from megabytes to terabytes (MB to TB).
Example
Patricia works as a video producer on a big-budget documentary for a top streaming service. Her crew has shot countless hours of footage in multiple countries, featuring stunning landscapes and powerful interviews. Now she’s faced with organizing and storing all the raw video material.
The total data comes out to 3.5 million megabytes. Patricia needs to convert that figure into terabytes to secure enough storage space for the project.
To accurately determine the size of the project in terabytes, she begins by converting measurements into both decimal and binary units to avoid mistakes while preparing the necessary storage space.
Option 1: Using decimal (SI) prefixes
Since 1 terabyte (TB) equals 1,000,000 megabytes (MB), we can convert 3,500,000 MB
to terabytes by using the following formula:
So, the 3.5 million megabytes project, when expressed in decimal units, is equivalent to 3.5 TB
.
Alternatively, you can use our calculator by entering 3,500,000
into the MB box, and you instantly get the storage value in terabytes, in this case, 3.5 TB
.

Option 2: Using binary (IEC) prefixes
Since 1 tebibyte (TiB) equals 1,048,576 mebibytes (MiB), we can convert 3,500,000 mebibytes
to tebibytes by using the following formula:
So, the 3.5 million mebibytes project, when expressed in binary units, is equivalent to 3.34 TiB
.
Alternatively, you can use our calculator by choosing MiB and entering 3,500,000
into the From box, choose TiB from the To unit box, and you instantly get the storage value in tebibytes, in this case, 3.337860107421875 TiB
.

MB to TB conversion table
The conversion table below provides a handy reference for converting data storage capacity from megabytes (MB) to terabytes (TB). It covers a range from 0.1 MB to 1,000 MB, allowing for easy and quick conversions between these units of measurement.
Decimal (SI) prefixes
Megabytes | Terabytes |
---|---|
0.1 MB | 0.0000001 TB |
0.5 MB | 0.0000005 TB |
1 MB | 0.000001 TB |
2 MB | 0.000002 TB |
4 MB | 0.000004 TB |
5 MB | 0.000005 TB |
10 MB | 0.00001 TB |
20 MB | 0.00002 TB |
30 MB | 0.00003 TB |
40 MB | 0.00004 TB |
50 MB | 0.00005 TB |
60 MB | 0.00006 TB |
70 MB | 0.00007 TB |
80 MB | 0.00008 TB |
90 MB | 0.00009 TB |
100 MB | 0.0001 TB |
200 MB | 0.0002 TB |
500 MB | 0.0005 TB |
800 MB | 0.0008 TB |
1,000 MB | 0.001 TB |
Binary (IEC) prefixes
Mebibytes | Tebibytes |
---|---|
0.1 MiB | 0.000000095367431640625 TiB |
0.5 MiB | 0.000000476837158203125 TiB |
1 MiB | 0.00000095367431640625 TiB |
2 MiB | 0.0000019073486328125 TiB |
4 MiB | 0.000003814697265625 TiB |
5 MiB | 0.00000476837158203125 TiB |
10 MiB | 0.0000095367431640625 TiB |
20 MiB | 0.000019073486328125 TiB |
30 MiB | 0.0000286102294921875 TiB |
40 MiB | 0.00003814697265625 TiB |
50 MiB | 0.0000476837158203125 TiB |
60 MiB | 0.000057220458984375 TiB |
70 MiB | 0.0000667572021484375 TiB |
80 MiB | 0.0000762939453125 TiB |
90 MiB | 0.0000858306884765625 TiB |
100 MiB | 0.000095367431640625 TiB |
200 MiB | 0.00019073486328125 TiB |
500 MiB | 0.000476837158203125 TiB |
800 MiB | 0.000762939453125 TiB |
1,000 MiB | 0.00095367431640625 TiB |
FAQs
Is 1 megabyte or 1 terabyte larger?
A terabyte (TB) is a million times bigger than a megabyte (MB). Here are the relationships between the units:
Decimal prefixes
1 TB = 106 = 1,000,000 MB
1 MB = 10-6 = 1 ÷ 1,000,000 = 0.000001 TB
Binary prefixes
1 TiB = 220 = 1,048,576 MiB
1 MiB = 2-20 = 1 ÷ 1,048,576 = 0.00000095367431640625 TiB
How to convert from megabyte to terabyte?
To convert data storage from megabytes (MB) to terabytes (TB), follow these simple steps based on the standard you are using:
- Write down the data storage value in
megabytes (MB)
.
Decimal (SI) prefixes
- Multiply it by the value of a
MB-to-TB
conversion factor:10-6
or0.000001
. - The result from multiplication is the value of the data storage in
terabytes (TB)
.
Binary (IEC) prefixes
- multiply it by the value of a
MiB-to-TiB
conversion factor:2-20
or0.00000095367431640625
. - The result from multiplication is the value of the data storage in
tebibytes (TiB)
.
You now know how to convert data storage capacity from megabytes (MB) to terabytes (TB). You can quickly use our calculator to convert between the data storage units to save time for future calculations.
For further understanding, check our data storage converter page to learn more about the differences between decimal and binary units of data storage.