Provided is a refrigerator equipped with: a storage chamber; a coolant circuit which is a coolant circulation circuit for circulating a coolant and in which a compressor, a radiator, a plurality of capillaries with mutually differing Cv values, a selection means for selecting at least one of the plurality of capillaries, and a cooler are connected via piping, the coolant circuit being configured so that the coolant flows to a selected capillary; a first sensor that outputs a first sensor value on the basis of detection of the evaporation temperature of the coolant or the evaporation pressure of the coolant; a second sensor that outputs a second sensor value on the basis of detection of at least the condensation temperature of the coolant or the condensation pressure of the coolant; and a control means that controls the selection means on the basis of the flow rate of the coolant based on the rotational rate of the compressor, the first sensor value, and the second sensor value.