How do I know which of the sales orders that has been invoic

How do I know which of the sales orders that has been invoic

I am trying to find a way to get a view where I can see which of my sales orders that has not yet been "converted" to an invoice. Does anyone know if this is possible?

I don't want to go through all sales orders, one by one, to see if there is an invoice attached. That's what I have to do today. But maybe someone out there could help me do this in a clever way?

Kindest regards
Mikael, Sweden