File Size Converter
Convert between Bytes, KB, MB, GB, and TB.
Binary units
This tool uses binary prefixes: 1 KB = 1024 B, 1 MB = 1024 KB, and so on.
About this File Size Converter
Convert between Bytes, KB, MB, GB, TB, and PB. Our file size converter supports all common digital storage units used in computing and data storage. Perfect for understanding file sizes, storage capacities, or any scenario requiring file size conversions. The tool provides accurate conversions using binary (1024-based) or decimal (1000-based) calculations.
Key Features
Convert between Bytes, KB, MB, GB, TB, and PB
Support for binary (1024-based) and decimal (1000-based) units
Real-time conversion as you type
Bidirectional conversion
Accurate calculations
Support for all common file size units
Easy unit switching
Works entirely in your browser for privacy
How to Use
Enter the file size value you want to convert
Select the source unit (e.g., MB)
Select the target unit (e.g., GB)
View the converted value automatically
Switch units to convert in reverse
Use for any file size conversion needs
Copy converted values if needed
Convert between any supported units
Popular Use Cases
Convert file sizes between units
Calculate storage capacities
Understand file sizes in different units
Convert sizes for data transfer
Calculate disk space requirements
Convert sizes for cloud storage
Understand storage specifications
Calculate file size requirements
Tips & Best Practices
1 KB = 1,024 Bytes (binary) or 1,000 Bytes (decimal)
1 MB = 1,024 KB (binary) or 1,000 KB (decimal)
1 GB = 1,024 MB (binary) or 1,000 MB (decimal)
Operating systems typically use binary (1024-based) units
Storage manufacturers often use decimal (1000-based) units
Verify which system is used for accurate conversions
Use for accurate file size calculations
Frequently Asked Questions
What file size units are supported?
The tool supports common file size units including Bytes, KB (kilobytes), MB (megabytes), GB (gigabytes), TB (terabytes), and PB (petabytes).
What's the difference between binary and decimal units?
Binary units use 1024 as the base (1 KB = 1024 Bytes), while decimal units use 1000 as the base (1 KB = 1000 Bytes). Operating systems typically use binary, while storage manufacturers often use decimal.
How accurate are the conversions?
Conversions are highly accurate, using standard conversion factors. The tool provides precise calculations for all supported units.
Which system should I use?
Use binary (1024-based) for operating system file sizes and memory. Use decimal (1000-based) for storage device capacities and network speeds.