Food – There are many cheap places to eat out in Japan from the ramen noodle shops to miso and soba noodles. These food options range from 250-1,250 JPY. Buying groceries will cost you 3,700-5,000 JPY per week. Most restaurant meals cost around 2,000 JPY. Mid-range restaurants can cost around 4,350 JPY. Sushi trains cost between 125-620 JPY per piece. Fast food is around 800 JPY.