Unit Converter

Convert length, mass, temperature, volume and other units to compare measurements.

FreeBrowser

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

Quantity

From

Input

Result

Processed on your device. No upload or account needed.

About Unit Converter

Convert measurements across supported length, mass, temperature, area, volume, speed, time and data-size units. Choose a category before selecting the source and destination units.

How to use Unit Converter

Choose the measurement category and enter a value.
Select the source and target units.
Process the value and copy the converted result.

Input and output example

Input and settings: 1000 meters → kilometers
Expected output: 1 kilometer

When to use this tool

Convert dimensions before entering them into another tool.
Compare decimal and binary data-size units.

Limits to know before using it

Results use 12 significant digits. kB and KiB use different bases; verify units and rounding requirements before using a result for a precise calculation.

Data handling and cost

The main operation runs in your browser; tool input is not uploaded for processing. The site can still use session cookies and collect operational or usage data as described in the privacy policy.

Free to use in your browser, with no sign-in needed.

Frequently Asked Questions

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

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