Do you need a vignette to reach Graz?
The Hungarian motorway vignette only covers the Hungarian section of your route. Once you cross into Austria, a completely different toll or vignette system takes over — OptimÚt calculates the Hungarian leg for you, up to the border.
Border crossing
Via Rábafüzes (M80): This cost/time covers the route to Rábafüzes (the Hungarian-Austrian border, M80 motorway) only — Graz is about another 50 km from there, where Austrian tolls/vignette apply.
How to calculate it
Open OptimÚt, enter your own starting point in "From", and type Graz into "To" — OptimÚt automatically recognises it as an international destination and calculates the route, toll cost and required vignette(s) up to the border, for whichever of the crossings above turns out faster or cheaper for your specific starting point.