Data Size Converter
Convert digital storage units with this free online Data Size Converter. Work with bytes, kilobytes, megabytes, gigabytes, and terabytes to compare file sizes, estimate storage needs, or understand data measurements. Enter a value and select the units to calculate the equivalent size quickly.
- 1,048,576 Bytes
- 1,024 KB
- 1 MB
- 0.0009765625 GB
- 0.0000009537 TB
- 0.0000000009 PB
What is Data Size Converter?
Convert digital data sizes with the free Data Size Converter. Work with bytes, kilobytes, megabytes, gigabytes, terabytes and other supported storage units to compare file sizes and estimate storage needs. Enter a value and choose the source and target units to calculate the equivalent size. Check whether decimal or binary unit conventions apply to your calculation.
Why use this tool?
- Convert between bytes, KB, MB, GB, TB and PB in one step.
- Switch between the binary standard (1 KB = 1,024 bytes) and the decimal standard (1 KB = 1,000 bytes).
- Quick buttons set common pairs such as KB to MB and MB to GB.
- A list shows the same size in every unit at once.
How to use Data Size Converter
- Step 1. Enter the size you want to convert.
- Step 2. Choose the unit you are converting from and the unit you want.
- Step 3. Pick the binary or decimal standard, or use a quick button such as KB to MB.
- Step 4. Read the result and the list of every unit.
Common use cases
Important notes
- The binary standard is the default. Strictly, the binary units are called KiB, MiB and GiB, but many operating systems label them KB, MB and GB.
- Drive makers usually count in decimal units, while many operating systems report binary units. This is why a 500 GB drive can appear smaller on your computer.
- Results are shown with up to ten decimal places.
- Bits are not supported. All units are based on bytes.
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Data Size Converter FAQ
How many KB are in a MB?
In the binary standard, 1 MB is 1,024 KB. In the decimal standard, 1 MB is 1,000 KB.
How many MB are in a GB?
In the binary standard, 1 GB is 1,024 MB. In the decimal standard, it is 1,000 MB.
Why does my hard drive show less space than advertised?
The advertised size uses decimal units, where 1 GB is 1,000,000,000 bytes. Many operating systems divide by 1,024 instead, so the same number of bytes shows as a smaller figure.
What is the difference between KB and KiB?
KB with the decimal standard means 1,000 bytes. KiB means exactly 1,024 bytes. This tool's binary option uses the 1,024 value.
Can I convert bits to bytes?
Not in this tool. Divide the number of bits by 8 to get bytes, then enter the result here.