That depends on how much of a hurry you are in. You could do it in less than 24 hours withou much stopping on the way, but a leisurely tourist trip could take 2 or 3 days.
How long does it take to drive from Trier in germany to Calais?
three month
About 4h45
342miles
19 hours
36 hours
the distance from Calais to Biarritz is 1070 km. This is a driving time of nearly ten hours.
8 hours
3 and a half hours
About 3.5 hours
approximatly 4 hours drive
From Calais to Paris is 3 hours and 18 minutes.