Provided is a zoom lens including: a positive first unit; a negative second unit; a positive third unit; a positive fourth unit; a positive fifth unit; and a sixth unit, wherein the first unit is moved toward the object side for zooming from wide angle end to telephoto end, and an interval between each pair of adjacent units is changed for zooming, wherein the fifth unit is moved for focusing, and wherein a focal length at wide angle end, a focal length of the fifth unit, an F-number of the zoom lens at wide angle end, a total length at wide angle end, a distance from a lens surface on the object side of the fifth unit to an image plane at wide angle end at infinity, and a movement amount of the fifth unit for zooming from wide angle end to telephoto end at infinity are appropriately set.