Megabyte (MB) to Kilobyte (KB)
1 MB = 1,024 KB · Free instant converter, no signup required.
Direct Answer
1 MB = 1,024 KB
Formula: KB = MB × 1,024. This page supports instant conversion, reference table checks, and related unit links.
About this conversion
This Koverts page converts megabytes (MB) to kilobytes (KB) with binary prefixes (1 MB = 1024 KB) — matching typical OS and browser file-size reporting.
A megabyte (MB) is 1024 kilobytes in the binary convention. It is a common label for images, PDFs, short videos, and mobile app bundles.
A kilobyte (KB) is 1024 bytes. It is the smallest unit you still see often in email attachment limits and small text or configuration files.
Typical uses
- Checking whether an email attachment fits a KB limit
- Estimating text log and config file sizes
- Comparing compressed image sizes in KB vs MB
- Debugging API payload limits expressed in KB
Common reference values
- 1 MB = 1,024 KB
- 2 MB = 2,048 KB
- 5 MB = 5,120 KB
- 10 MB = 10,240 KB
- 100 MB = 102,400 KB
Tip: Multiply MB by 1024 to get KB. So 0.5 MB × 1024 = 512 KB.
Did you know? The letter “K” in KB often comes from “kilo” — but in computing it is usually interpreted as 1024, not 1000, when referring to bytes.
Educational reference — always verify critical measurements (medical, engineering, legal) with primary sources.
// megabyte Conversion table kilobyte
| Megabyte (MB) (MB) | Kilobyte (KB) (KB) |
|---|---|
| 1 MB | 1,024 KB |
| 2 MB | 2,048 KB |
| 5 MB | 5,120 KB |
| 10 MB | 10,240 KB |
| 20 MB | 20,480 KB |
| 25 MB | 25,600 KB |
| 50 MB | 51,200 KB |
| 100 MB | 102,400 KB |
| 250 MB | 256,000 KB |
| 500 MB | 512,000 KB |
| 1000 MB | 1,024,000 KB |
How to convert
Megabyte (MB) → Kilobyte (KB)
To convert from Megabyte (MB) (MB) to Kilobyte (KB) (KB)，multiply your value by 1,024.
For example，10 MB = 10,240 KB.
// Frequently Asked Questions
Is KB the same as kb?▼
Why do small files show 0 MB in some apps?▼
What is 1 MB in KB?▼
How is the conversion calculated?▼
Can I convert other values?▼
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