Thirty to $50 per day for my wife and me. We tend to eat healthy , well balanced meals at home and see no reason to do anything different when on the road. Depending on the duration of the tour, it may even more important to eat well on tour. We avoid fast food places, except Subway, unless they are our last resort. However, we do consume a lot more calories, and always leave room for ice cream.

My wife's rear fender.