This is a very good route planner,
http://www.viamichelin.co.uk/ Costs
Total 207.84 GBP
Toll 59.86 GBP | Petrol 128.31 GBP | Road tax 19.68 GBP
Time, 17h18 which 15h46 on motorways
Distance 1,123 miles of which 1095 miles are on motorways
It will take you 9 hours driving to get into France, so maybe you want to plan an overnight stop there.
I second that: you would be wise to fit winter tyres, (not snow tyres) to your car.