I thought it might be interesting to give a short overview of tolls in Europe.
There are generally 3 types of tolls;
1) Closed ticket system
2) Toll plaza's without a ticket system
3) Vignettes, which you buy and you can drive the entire network unlimited for a certain amount of time (depending on vignette type).
here we go;
United Kingdom
Generally toll free, except for some bridges.
Germany
Toll free for passenger vehicles, trucks pay a distance-based toll
France
Like the entrepreneur of toll roads in Europe. Most long-distance Autoroutes are tolled, except in and around major cities. A cross country trip from Lille to Perpignan (600 miles) will cost you about € 63 or $ 90.
Spain
Used to have a limited network of freeways which are tolled. Most toll roads now have a decent toll free alternative. Tolls are expensive, a trip from the French border to Alicante will cost you about € 55 or $ 78 for 400 miles
Italy
Most freeways are tolled, but there are low-quality untolled freeways. Southern Italy has fewer toll roads. A trip from Milan to Rome will cost you about € 32 or $ 45 for 350 miles
Switzerland
Uses vignettes. You can only buy a yearly vignette for 40 CHF or € 25 or $ 35. Most people only use it twice to go from Germany to Italy.
Austria
Also uses vignettes, which can be bought for 10 days, a month or a year. Cheapest vignette is € 7,70 or $ 11. Additional tolls are levied at most transit routes for tunnels and the Brenner Pass. Toll free alternatives are slow, and often not allowed with a trailer.
Hungary
Uses vignettes, but is the only one you don't have to put on your windscreen. Your license plate is registered, and you'll only get the reciept. Cheapest vignette is about € 4,40 or $ 6 for a couple of days.
Slovakia
Uses vignettes, similar to other central European countries. These cost € 4,90 or $ 7 for the cheapest period possible.
Czech Republic
Uses vignettes, similar to Slovakia. These are about € 9 for the cheapest period. You can use the entire motorway network with one vignette.
Poland
Generally toll free, but levies tolls on newer freeways, and intend to toll all A-roads in the future. S-roads will be toll free, and have a similar design standard
Netherlands
Toll free, except for two tunnels.
Belgium
Toll free roads
Luxembourg
Toll free roads
Ireland
Generally toll free, except the Dublin Port tunnel.
Portugal
Has a network of toll roads, developed mostly from the 1990's onward. A cross country trip from the Algarve to the Spanish border will cost about € 46 or $ 65 for 420 miles.
Denmark-Sweden
Denmark has two toll bridges, each is 12 miles long. These require tolls, the Great Belt Bridge is € 26 or $ 36, and the Oresund bridge into Sweden is € 38 or $ 54 for a single trip. A cross country trip still accumulates for € 128 or $ 181 even with the general freeways being toll free. Sweden has no further toll roads, only a congestion charge in Stockholm, but does not apply to non-Swedish license plates.
Norway
Has many automated toll roads with license plate recognition. Small amounts are charged at several points, mostly around 10 - 20 NOK (€ 1 - 2) The North Cape tunnel charges € 17 each way + € 5,50 per adult. A single person will pay € 45 or $ 64 for a return trip.
Finland
There are no toll roads in Finland
Estonia, Lithuania & Latvia
There are no toll roads in the Baltic countries
Ukraine
There are no toll roads in Ukraine
Belarus
Tolls are charged on the M1 through freeway from Poland towards Russia. Unknown amounts
Russia
No tolls.
Romania
A vignette is required in Romania. € 3 for one week up to € 28 for a whole year. Romania's road network was in poor condition, but is improving quickly.
Bulgaria
charges a similar vignette like in Romania
Moldova
Toll free. Very poor road quality. Poorest country in Europe.
Serbia
Tolls are levied. Foreigners are said to be charged more due to the income inequality between Serbia and other countries
Croatia
Croatia has an outstanding freeway network and requires tolls for most freeways.
Slovenia
Switched to a vignette in 2008. one week vignettes cost € 15 or $ 21. A yearly vignette costs € 95 or $ 135.
Bosnia
No tolls as far as I know
Montenegro
Cars entering Montenegro must pay a € 10 environmental tax upon entry. Montenegro is Europe's newest elite holiday destination, but the difficult terrain requires very expensive road construction. The motorway to Belgrade is said to cost 2 years of Montenegro's GDP.
Albania
Improving quickly from a nearly non-existent road network from the late 1990's. An environmental tax is charged upon entry, similar to Montenegro.
Greece
Greece has toll roads. A trip from Thessaloniki to Athens cost € 16 or $ 23 for 300 miles.
Turkey
Most freeways in Turkey are tolled, both in Europe and Asia. Nearly all freeways are 6-laned, regardless of traffic volumes.