Thanks vet. Converting from american to decimal is easy, but from decimal to american not so much... This should be usefull.
As European I used to hate american odds. I couldn't understand why somebody would bother with american when there are perfectly intuitive and easy to use decimal odds

Well, that was my view a long time ago. Not anymore...
When it comes to online calculators I use sometimes
Scalpulator for arbs and
Freeplay value calculator for free plays. Maybe someone will find them handy...