Provided is a refrigerator including a main body configured to form a storage chamber, a door configured to open and close the storage chamber, a hinge configured to rotatably support the door, and a height adjusting device configured to be coupled to the hinge and located inside the door, wherein the height adjusting device includes a lever provided to be operable from an outside of the door, a power transmission member provided to be movable as the lever rotates, and a support member configured to guide the power transmission member in a first direction as the lever rotates to move the power transmission member so that a height of the door is increased, and guide the power transmission member in a second direction, different from the first direction, as the lever rotates to move the power transmission member so that the height of the door is decreased.