title: How do I create reactive Grafana variables that are based on other variables, all of which are defined in the dashboard settings?
body: <p>I am trying to make a dashboard in Grafana, where all the variables are defined in the dashboard settings. Most of these are constants, though I have three input variables in the dashboard that will reactively change several other variables. My issue is that I am unable to define new variables that will reactively change depending on the value of input values.</p>
  <p>For instance, suppose I have defined an input variable &quot;input1&quot; that is set to 10. I want to make a new variable &quot;test&quot; = $input1 * 10. When I attempt to do this, I get that test = &quot;$input1 * 10&quot; rather than test = 100.</p>
  <p>Even when I use any two constants, eg. &quot;a&quot; = 10 and &quot;b&quot; = 2, if I try to make a new variable &quot;c&quot; = $a*$b, I get that c = &quot;$a*$b&quot; rather than c = 20.</p>
  <p>Is there a way to perform calculations like these when defining variables? I am not querying or extracting data from any external data sources - all variables are defined in the dashboard settings.</p>