Racquetball Calories Burned Calculator

Calories burned playing racquetball is the energy your body uses while you are on the court hitting, chasing and recovering. Three things drive it: how much you weigh, how long you play and how hard the games are. This calculator combines them with published energy values for racquetball to give you an estimate.

What the Racquetball Calorie Estimate Measures

The result is the total energy you use while playing, including the energy your body would use at rest anyway. It is not a reading of your own heart rate or oxygen use, and it is not a target for how much to eat.

The Formula

The calculator uses METs. A MET compares the energy cost of an activity with sitting still, and one MET is about 1 kcal per kilogram of body weight per hour¹.

Calories burned = MET x body weight (kg) x playing time (hours)

Casual racquetball: 7.0 METs. Competitive racquetball: 10.0 METs.

Both values come from the 2024 Adult Compendium of Physical Activities, codes 15530 and 15520².

How This Calculator Computes Your Result

Choose your age group and enter your weight in pounds or kilograms, your playing time and your level of play. Pounds are converted to kilograms, and calories are rounded to the nearest 5 kcal.

If your session mixed easy hitting with hard games, switch to Split session. Enter the minutes of casual play and the minutes of competitive play, and leave out long breaks like sitting out or waiting for the court. The calculator counts each part at its own level and labels the result "active time only".

You get your total, calories per hour and per 30 minutes, and both levels at your weight for 30 and 60 minutes. The values come from adults aged 19 to 59¹. There is no racquetball entry for adults 60 and over, so older players see the adult figure with a note that it may run high. Under 18, no result is shown, because youth values differ.

What Your Result Means

The compendium has two racquetball entries². The competitive value is marked as an estimate rather than a direct measurement².

Pick casual for relaxed games, practice rallies, drills or easy doubles, where you have time to reset between shots. Pick competitive for games played hard to win, usually singles, where rallies run long and you rarely catch your breath. Many sessions include some of each, which is what Split session is for.

What a Study of Recreational Racquetball Found

The clearest direct measurement comes from a study in which 14 recreational players with an average age of 23 played for 40 minutes while wearing a portable gas analyser⁴. Their oxygen use averaged 27.3 ml per kg per minute, heart rate averaged 155 beats per minute, and they rated the effort about 13 on a 6 to 20 scale⁴. They burned an average of 440 kcal in the 40 minutes, about 11 kcal a minute⁴.

That oxygen use works out to about 7.8 METs, a little above the casual value of 7.0. At the players' average weight of 81 kg, that is about 660 kcal per hour, against about 570 kcal from the casual setting. So ordinary recreational play sits between the two settings, closer to casual. The authors concluded it is intense enough to build aerobic fitness in many people⁴.

Racquetball vs Squash, Tennis, Badminton and Running

Racquetball sits in the middle of the racket sports. Casual racquetball burns about the same as general squash and less than singles tennis, while competitive racquetball beats hard badminton and running at 6 mph but falls short of hard squash² ³.

What Changes Your Burn on a Racquetball Court

• Singles, cutthroat or doubles. With three or four players sharing one court, each player hits fewer shots and waits more. The compendium has no doubles value, so easy doubles fits best under casual.

• Skill and how well matched you are. Beginners often lose a rally after a shot or two and spend more time collecting the ball. Two even players keep the ball alive off the back wall, which pushes you toward the competitive value.

• How the session is spent. Drills, serving practice and warm-up hitting are lighter than games. Split session lets you count them separately.

• Time on court. In the study above, oxygen use fell across the 40 minutes while heart rate kept rising⁴. A climbing heart rate late in a session does not always mean you are burning more.

• Body weight. Calories rise in step with weight, so a 90 kg player burns about 29% more than a 70 kg player at the same level.

A brief safety point: a review of eye injuries in racket sports found that open, lensless eye guards did not prevent injuries in squash and racquetball, because the ball can deform on impact and get through the opening⁵. Only eyewear meeting updated impact standards was linked to no eye injuries⁵.