Kilobytes to Megabytes Converter
Convert kilobytes to megabytes and understand the difference between decimal (1000) and binary (1024) file-size units.
Result
Megabytes (MB)
1 Kilobytes (KB) = 0.0009765625 Megabytes (MB)
How to convert Kilobytes (KB) to Megabytes (MB)?
Note: “KB” can be used in two different ways depending on the app or platform.
- Decimal (SI): 1 MB = 1000 KB
- Binary (IEC): 1 MiB = 1024 KiB (often shown as “1024 KB per MB” in some tools)
This converter uses a 1024-based calculation as specified by the factor.
Formula (1024-based): Megabytes (MB) = Kilobytes (KB) ÷ 1024
Step-by-Step Calculation (1024-based)
- Take the number of Kilobytes (KB) you want to convert (e.g., 2500).
- Divide that value by 1024.
- The result is the value in Megabytes (MB). (Example: 2500 ÷ 1024 ≈ 2.4414 MB).
KB vs KiB: why the numbers don’t always match
Strictly speaking, kB (kilobyte) is decimal and equals 1000 bytes, while KiB (kibibyte) is binary and equals 1024 bytes.
Many apps still show “KB” even when they use 1024-based calculations, which is why KB→MB conversions can differ across tools.
Real-world use cases (images, email attachments, and web performance)
- Images: A 750 KB image is about 0.75 MB in decimal terms (750 ÷ 1000), or about 0.7324 MB in 1024-based terms (750 ÷ 1024).
- Email attachments: If a service limits attachments to 10 MB, converting KB→MB helps you check whether multiple files stay under the cap.
- Website performance: Cutting 300 KB from a page can noticeably improve load time on mobile networks.
How to use this converter?
Common KB to MB Conversions (1024-based)
Quick reference guide for common file sizes using a 1024-based factor.
Note: 1000 vs 1024
KB to MB Conversion Table (1024-based)
| Kilobytes (KB) Input | Megabytes (MB) Result |
|---|---|
| 100 KB | 0.0977 MB |
| 250 KB | 0.2441 MB |
| 500 KB | 0.4883 MB |
| 750 KB | 0.7324 MB |
| 1000 KB | 0.9766 MB |
| 1024 KB | 1.0000 MB |
| 1500 KB | 1.4648 MB |
| 2000 KB | 1.9531 MB |
| 5000 KB | 4.8828 MB |
| 10000 KB | 9.7656 MB |
Frequently Asked Questions
How do I convert KB to MB?
If you mean decimal units, divide KB by 1000 to get MB. If you’re using a 1024-based calculation, divide by 1024 (more precisely: KiB→MiB).
How many MB is 1000 KB?
In decimal terms, 1000 KB = 1 MB. Using a 1024-based calculation, 1000 ÷ 1024 ≈ 0.9766 MB.
How many MB is 1024 KB?
Using a 1024-based calculation, 1024 KB = 1 MB (more precisely: 1024 KiB = 1 MiB).
Why do some tools use 1000 instead of 1024?
1000 is the decimal (SI) standard used in many file-size and marketing contexts. 1024 is the binary (IEC) standard (KiB/MiB) used by many operating systems and technical tools.
Is this conversion exact?
It’s exact for the chosen factor. 1024-based conversions are exact in the binary system (KiB→MiB). Decimal labeling commonly uses 1000 (KB→MB).