Kilobytes (KB) to Megabytes (MB) Converter
The Kilobytes (KB) to Megabytes (MB) Converter turns your Kilobyte (KB) value into Megabytes (MB). Type your storage value in the input field — 1 KB = 0.001 MB, calculated across both decimal (SI) and binary (IEC) standards.
Kilobytes (KB) to Megabytes (MB) Converter
How to Convert Kilobytes to Megabytes
To convert kilobytes to megabytes, divide by 1,000 (using SI decimal). Both units measure storage capacity—the difference is scale. Use our Megabytes to KB calculator.
KB: A kilobyte is 1,000 bytes using the SI decimal standard. Commonly used for small file sizes. Check out our KB to Gigabits converter.
MB: A megabyte is 1,000 kilobytes or 1,000,000 bytes using the SI decimal standard. Related: Yobibytes to Megabytes conversion.
1 KB = 0.001 MB (using SI decimal standard) — or equivalently, 1 MB = 1,000KB.
KB to MB Conversion Formula
// Convert KB to MB
MB = KB × 0.001
// Reverse: Convert MB to KB
KB = MB × 1,000Kilobyte to Megabyte Conversion Examples
100 KB = 0.1 MB
256 KB = 0.256 MB
500 KB = 0.5 MB
1,000 KB = 1 MB
2,048 KB = 2.048 MB
Binary Standard (Base 1024)
Using binary calculation: 1 KB = 0.0009765625 MB
100 KB = 0.09765625 MB
1,000 KB = 0.9765625 MB
1,024 KB = 1 MB
What Is a Kilobyte (KB)? Definition and Uses
A kilobyte is 1,000 bytes using the SI decimal standard. Commonly used for small file sizes. Learn more: convert Yottabytes to Yottabits.
The kilobyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. You might also need: Yobibits Per Second to Bits Per Second calculator.
Common uses: Text documents, small images, email attachments, configuration files Check out our Kilobytes to Exabits converter.
1 KB = 8,000 bits = 1,000 bytes.
The kilobyte can be abbreviated as KB; for example, 1 kilobyte can be written as 1 KB.
What Is a Megabyte (MB)? Definition and Uses
A megabyte is 1,000 kilobytes or 1,000,000 bytes using the SI decimal standard. Related: Petabits to Megabytes.
The megabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. See also: YB → ZB.
Common uses: MP3 files, high-resolution images, short video clips, software installers See also: convert Tibps to Mbps.
1 MB = 8 × 10⁶ bits = 1 × 10⁶ bytes.
The megabyte can be abbreviated as MB; for example, 1 megabyte can be written as 1 MB.
Kilobyte to Megabyte Conversion Table
The table below shows various kilobyte measurements converted to megabytes.
| Kilobytes | Megabytes | Megabytes (Binary) |
|---|---|---|
| 1 KB | 0.001 MB | 0.0009765625 MB |
| 2 KB | 0.002 MB | 0.001953125 MB |
| 5 KB | 0.005 MB | 0.0048828125 MB |
| 10 KB | 0.01 MB | 0.009765625 MB |
| 25 KB | 0.025 MB | 0.0244140625 MB |
| 50 KB | 0.05 MB | 0.048828125 MB |
| 100 KB | 0.1 MB | 0.09765625 MB |
| 128 KB | 0.128 MB | 0.125 MB |
| 250 KB | 0.25 MB | 0.244140625 MB |
| 256 KB | 0.256 MB | 0.25 MB |
| 500 KB | 0.5 MB | 0.48828125 MB |
| 512 KB | 0.512 MB | 0.5 MB |
| 1,000 KB | 1 MB | 0.9765625 MB |
| 1,024 KB | 1.024 MB | 1 MB |
SI Decimal vs Binary: Why Two Different Standards?
When converting kilobytes to megabytes, different tools may give slightly different results. This is because there are two competing standards for measuring digital storage:
| Standard | Base | 1 KB equals | Used By |
|---|---|---|---|
| SI Decimal | 1000 | 1,000 bytes | Hard drive manufacturers, macOS, network speeds |
| Binary (IEC) | 1024 | 1,024 bytes | Windows, Linux (partially), RAM specifications |
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard at the top of the calculator.