File Size Converter – Convert B, KB, MB, GB, TB Instantly
Convert between any digital storage units — bytes, kilobytes, megabytes, gigabytes, and terabytes — instantly with our free file size converter. This data unit converter works entirely in your browser with no installation required, making it perfect for quick file size calculations. Whether you’re converting bytes to MB or MB to GB, get accurate results in real-time for any file size calculation task.
File Size Converter
Convert between B, KB, MB, GB, TB instantly
File Size Converter Features
- Converts file sizes between bytes, kilobytes, megabytes, gigabytes, and terabytes
- Supports all five units in both conversion directions
- Allows selection of source and target units independently via dropdown menus
- Provides instant in-browser conversion without any server processing
- Useful for understanding app sizes, download sizes, and storage requirements
- Displays result value and unit label clearly in the output section
How to Use File Size Converter
- Enter the numeric value to convert (e.g., 1024) in the “Value” field
- Select the source unit from the “From Unit” dropdown (e.g., Megabytes)
- Select the target unit from the “To Unit” dropdown (e.g., Gigabytes)
- Click the Convert button
- View the converted result and its unit in the results section
- Click Reset to perform a new conversion
Frequently Asked Questions
1 Megabyte (MB) = 1,024 Kilobytes (KB) = 1,048,576 bytes. To convert bytes to MB, divide byte count by 1,048,576. Our file size converter performs this and all other unit conversions instantly.
MB (Megabyte) in marketing typically uses base-10 (1MB = 1,000,000 bytes), while MiB (Mebibyte) uses base-2 (1MiB = 1,048,576 bytes). Our converter uses the standard binary system common in computing.
1 GB (Gigabyte) = 1,024 MB in binary computing (used by operating systems). However, hard drive manufacturers often use 1 GB = 1,000 MB in decimal, which is why drives appear smaller than rated when connected.
1 TB (Terabyte) = 1,024 GB in binary. A 1TB hard drive or storage device holds approximately 1,024 gigabytes of data in standard computing terms.
Smartphone storage is marketed in gigabytes (GB), with values like 64GB, 128GB, 256GB, 512GB, and 1TB being common. Operating systems display available storage slightly lower due to pre-installed software and formatting.
Manufacturers use decimal GB (1 billion bytes = 1GB), while operating systems use binary GB (1,073,741,824 bytes = 1GB). This difference, plus the OS and pre-installed apps, results in less displayed available storage.
Yes, our file size calculator handles all common units from bytes through petabytes, making it useful for personal storage calculations as well as enterprise and cloud storage planning.
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