File Size Converter

Binary conversion uses base 1024 (1 KB = 1,024 bytes), which is the standard used by operating systems and computer memory. Decimal conversion uses base 1000 (1 KB = 1,000 bytes), which follows the SI (International System of Units) standard and is often used by storage device manufacturers. This is why a hard drive advertised as 1 TB might show as 931 GB in your operating system.

To convert MB to GB, enter your value in megabytes, select MB as the source unit, and GB as the target unit. In binary (1024 base), 1 GB = 1,024 MB. In decimal (1000 base), 1 GB = 1,000 MB. The tool automatically performs the conversion based on your selected conversion base.

Use binary (1024) when working with operating systems, RAM, or computer storage as displayed by your OS. Use decimal (1000) when working with storage device specifications, network speeds, or when following SI standards. Most everyday computer users should use binary (1024) as it matches what their operating system displays.

Yes! The File Size Converter supports all common storage units from bytes up to exabytes (EB). You can convert between any of these units: Bytes, KB, MB, GB, TB, PB, and EB. The tool handles very large numbers and displays them with appropriate precision or in scientific notation when needed.

The conversions are mathematically precise using exact multiplication factors. For binary: each unit is 1,024 times the previous (1 KB = 1,024 bytes). For decimal: each unit is 1,000 times the previous (1 KB = 1,000 bytes). The tool displays results with up to 8 decimal places of precision and uses proper rounding to ensure accuracy.

This happens because of the difference between binary and decimal systems. Hard drive manufacturers use decimal (base 1000) where 1 TB = 1,000 GB = 1,000,000 MB = 1,000,000,000 KB = 1,000,000,000,000 bytes. However, Windows uses binary (base 1024), so it divides by 1024 at each step. When you convert 1,000,000,000,000 bytes using binary: 1,000,000,000,000 ÷ 1024 ÷ 1024 ÷ 1024 = 931.32 GB.

Yes! The tool accepts decimal values with full precision. You can enter values like 1.5, 0.75, or 2.25 and the conversion will work perfectly. This is useful when working with partial file sizes or calculating storage requirements that don't fall on whole number boundaries.

You can convert any positive file size value. The tool supports a very wide range from tiny values (like a few bytes) to extremely large values (exabytes). Very large or very small results are displayed in scientific notation for readability. Negative values are not supported as file sizes cannot be negative.

The "All Unit Conversions" table automatically shows your input value converted to all available units (Bytes, KB, MB, GB, TB, PB, EB) at once. This gives you a complete overview of the file size in different units. The row matching your selected target unit is highlighted for easy identification.

Yes! Click the "Swap Units" button to instantly exchange the source and target units. This is useful when you need to perform the reverse conversion without manually changing both dropdowns. The input value remains the same, only the units are swapped.

The tool displays the equivalent value in bytes under the main result. This is useful for programming and technical work where exact byte counts are needed. It also helps verify the conversion accuracy and provides a common reference point regardless of which units you're converting between.

While this tool converts file sizes between different units, you can use it as part of download time calculations. First convert your file size and download speed to the same unit (e.g., both in MB), then divide the file size by your download speed to get the time in seconds. For direct download time calculations, consider using a dedicated download time calculator.