Megabytes to Kilobytes Converter (MB to KB)

Convert megabytes to kilobytes.

Megabytes (MB) → Kilobytes (KB)

Enter a value in Megabytes (MB)1 Megabytes (MB) = 1024 Kilobytes (KB)
Megabytes (MB)

Decimals supported.

Result

Kilobytes (KB)

Enter a value to convert Megabytes (MB) to Kilobytes (KB).

How to convert Megabytes to Kilobytes?

To convert megabytes to kilobytes, multiply the number of megabytes by 1024. This is the standard binary calculation used by computers.

Formula: KB = MB × 1024

Step-by-Step Calculation

  1. 1
    Take the number of Megabytes (e.g., 5).
  2. 2
    Multiply by 1024.
  3. 3
    The result is the value in Kilobytes. (Example: 5 × 1024 = 5120 KB).

Comparison: Which is bigger?

A Megabyte (MB) is bigger than a Kilobyte (KB). In fact, 1 MB is 1,024 times larger than 1 KB.

Think of a Kilobyte as a short paragraph of text, while a Megabyte is a high-quality digital photo.

Real-world use cases (Images & Email)

  • Email Limits: A 25 MB attachment limit is exactly 25,600 KB.
  • Web Images: A 1.5 MB image is 1,536 KB. Compressing it to under 1000 KB makes it load faster.

Megabytes to Kilobytes Conversion Chart

Megabytes (MB)Kilobytes (KB)
1 MB1024 KB
2 MB2048 KB
5 MB5120 KB
10 MB10240 KB
15 MB15360 KB
20 MB20480 KB
25 MB25600 KB
50 MB51200 KB
100 MB102400 KB

Frequently Asked Questions

Q

1 megabyte is equal to how many kilobytes?

1 Megabyte is equal to 1024 Kilobytes (Binary). In the decimal system, it is 1000 KB.

Q

How many kilobytes in 15 MB?

There are 15,360 KB in 15 MB (15 x 1024).

Q

How many kilobytes in 25 MB?

There are 25,600 KB in 25 MB. This is a common email attachment limit.