Housing
Housing is the main reason why Tokyo is more expensive than other Japanese cities. According to official data, the average cost of housing across the country is 41,000 yen per month, while in Tokyo it is already 57,000 yen. The University of Tokyo, on its official page for international students, specifies that renting a small studio apartment in the city costs 80,000–100,000 yen per month.
Food
Meals in student cafeterias and small cafes are more affordable than in restaurants; cooking at home with purchases from budget supermarkets is the most economical option.
Transport
Tokyo has one of the most developed transport systems in the world — the subway and JR trains — but due to the city’s size, transport costs will be higher than in more compact cities like Seoul or Singapore, especially if the accommodation is located far from the university.
Communication, insurance and personal expenses
International students in Japan are required to participate in the national health insurance system; according to official data, contributions for low‑income students in Japan are subsidized and remain at a low level.
Example of a monthly budget
According to official data from Study in Japan and the University of Tokyo, a realistic budget for living in Tokyo, excluding tuition fees, is 120,000–150,000 yen per month. This makes Tokyo the most expensive city among the four considered, alongside Singapore.