Data Size Converter

A data size converter changes a digital data quantity from one unit to another. It can help compare file sizes, estimate storage requirements, and understand values reported by operating systems, applications, cloud services, or storage devices. Conversions may use decimal multiples of 1,000 or binary multiples of 1,024.

1. Enter the amount you want to convert.

2. Choose the original unit, such as bytes, kilobytes, or megabytes.

3. Select the target unit.

4. Read the result and check the displayed unit labels.

5. For technical work, confirm whether the conversion uses decimal or binary units.

To convert bytes to kilobytes using decimal units, divide the byte count by 1,000. For binary units, divide by 1,024 and label the result in kibibytes (KiB). Check the convention used by the system you are comparing against.

For decimal megabytes, divide bytes by 1,000,000. For binary mebibytes, divide by 1,048,576 (1,024 × 1,024). The distinction matters when comparing results from different tools.

For decimal units, divide KB by 1,000 to get MB. For binary units, divide KiB by 1,024 to get MiB. Some interfaces use KB and MB informally for binary values, so verify the convention when precision matters.

For decimal gigabytes, divide bytes by 1,000,000,000. For binary gibibytes, divide bytes by 1,073,741,824 (1,024³). Use the unit label that matches the conversion method.

A computer file size calculator helps compare file sizes and estimate the space a collection of files may use. A data storage calculator can support planning for backups, media libraries, downloads, and storage capacity. Remember that advertised drive capacity and operating-system displays may use different unit conventions.

Decimal units use powers of 1,000: 1 KB = 1,000 bytes, 1 MB = 1,000,000 bytes, and 1 GB = 1,000,000,000 bytes. Binary units use powers of 1,024: 1 KiB = 1,024 bytes, 1 MiB = 1,048,576 bytes, and 1 GiB = 1,073,741,824 bytes. The symbols KiB, MiB, and GiB make the binary convention explicit.