Size Conversion Chart
| CN Size | Intl Size | Foot Length(cm) |
|---|---|---|
| 38 | 38 | 24 |
| 39 | 39 | 24.5 |
| 40 | 40 | 25 |
| 41 | 41 | 25.5 |
| 42 | 42 | 26 |
| 43 | 43 | 26.5 |
| 44 | 44 | 27 |
Description
File Size Calculator converts between bytes, KB, MB, GB, TB, and other units for quick storage calculations.
Use Cases
1
Storage planning: Calculate required disk space
2
Transfer: Estimate download/upload times
3
Development: Calculate file size limits
4
Comparison: Compare storage capacities
5
Education: Understand binary vs decimal units
Instructions
1
Enter a value in any size unit
2
Select the source unit
3
View conversions to all other units
4
Calculate total for multiple files
5
Copy the results
Notes
- Binary units (KiB, MiB) differ from decimal (KB, MB)
- 1 KB = 1000 bytes (decimal), 1 KiB = 1024 bytes (binary)
- Storage manufacturers use decimal units
- Operating systems often use binary units
FAQ
Q
Why are there different units?
A
Decimal units (KB=1000) are used by storage manufacturers, while binary units (KiB=1024) are used by operating systems.
Q
How do I calculate transfer time?
A
Divide file size by transfer speed. For example, 1GB at 10 Mbps takes about 13 minutes.