Unit conversions online

Welcome to conversion.org, a user friendly website, where you can find conversion calculator for (currently) 8 categories of measurement units. Conversion.org provides several ways to enter source unit and high precision calculation. You can generate your own conversion charts, ready to copy into spreadsheet application. Newest category: frequency (2017-09-21), next category, under construction: angle.

Unit categories:

In ABC order

Grouped by categories:

..to be continued..

Main preferences:

Please use decimal dot and not comma. Good: 3.1, bad: 3,1 (in some browsers, it may depend from language settings, test it for the first time).
You can use scientific numbers to, example: 1.23E-2 (=1.23×10^-2 =0.0123)
For conversion calculations you need browser with JavaScript support

The precision of the conversion:

Most of the conversion calculations and charts are limited to double-precision floating-point in JavaScript, it is limited to 13-14 decimal places (in Exponential form).

Where it is possible (the definition between two units is exactly definied), there is option for converting with high precision!