When we calculate a value, we just need to do the calculation directly. However, when both values to be calculated have errors, the direct calculation is no longer applicable, and the Propagation of Uncertainty is needed at this time.

It's quite inconvenient to do the calculation manually every time we need it. Unfortunately, it appears that there is no existing calculator for the propagation of uncertainty, eventually, I found an open-source project by nicoco007 and try to deploy it on the website.

The tool is very powerful and user-friendly, though there are some issues waiting to be solved, I believe it can be used to do some simple calculations.

You can have it a try by clicking here, and nicoco007 also provides a page to use it.

Thank nicoco007 for the gorgeous work.