The rate as the flag goes down is ¥10, which includes 3km. The rate per km (at the moment) is ¥2. After 15km that rate goes up by 50%. After 11pm and before 5am all rates go up by 20% (and the starting price is ¥11).

At the moment, when petrol prices are between certain numbers, there's an addition ¥1 charge for journeys over 3km, which isn't shown on the meter and for which an extra paper receipt is given.

On the airport run there's an extra ¥10, also not on the meter, for the airport expressway toll. The cabbie should give you the receipt he receives from the toll booth).