100tools

Unit Converter

Convert length, mass, temperature, data size and more.

Text & DataFreeLocal

Length, mass, temperature, area, volume, speed, time and data size. kB is decimal; KiB is binary. Results use 12 significant digits.

Processed on your device. No upload or account needed.

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Frequently Asked Questions

Do I need to log in or upload my data?

No. Processing runs in your browser; input and files are not sent to a backend. Loading the website and program assets requires a connection.

Which formats and rules are supported?

kB uses 1000 bytes and KiB uses 1024 bytes. Temperature includes offsets and rejects values below absolute zero.