Squash burns between 635 calories an hour, according to FitDay, and 1,034 calories per hour, according to Men's Fitness. The actual number of calories burned depends on the weight of the individual playing and the strenuousness of the exercise.
Forbes ranks squash as the healthiest exercise available because of the combination of almost constant running combined with lunges and twists that build flexibility. The ranking, according to Squash Player, was based on an analysis of cardiorespiratory endurance, muscle strength, muscle endurance, flexibility, calories burned and risk of injury. Sports ranking immediately behind squash in the Forbes analysis were rowing, rock climbing, swimming and cross-country skiing.