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= NumberOneCalc

Data Storage Converter

Bits to petabytes, decimal and binary units both.

Your result appears here

Fill in the fields on the left and press Calculate. The answer, the breakdown and a copy button all land in this card.

How it is calculated

Convert the input to bytes, then divide by the target unit's byte value.

Decimal units step by 1,000 (MB, GB). Binary units step by 1,024 (MiB, GiB). Drive makers use decimal; operating systems often report binary.

Worked example

1 GB is 1,000 MB in decimal terms, but a 1 TB drive shows as about 931 GiB in your file manager.

Questions people ask

The manufacturer counts 1 TB as 1,000,000,000,000 bytes while the operating system divides by 1,024 three times, giving about 931 GiB. No space is missing.

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