There is provided a liquid consuming apparatus which includes a tank including first and second liquid storage chambers, and a liquid consuming unit. The tank includes a first inlet, a first atmosphere communication channel, a first liquid outflow channel, a first return channel, a second inlet, a second atmosphere communication channel, a second liquid outflow channel, and a second return channel. A volume of the first liquid outflow channel from the first position up to the second position and a volume of the second liquid outflow channel from the fourth position up to the fifth position differ mutually.