Calories Burned Playing racquetball at 55 kg — 385 kcal per Hour
Playing racquetball at 55 kg (110–132 lb) burns about 385 kcal per hour. That figure comes from the activity's MET value of 7 in the 2011 Compendium of Physical Activities, multiplied by body weight: 7 × 55 kg × 1 hour = 385 kcal. This page works the numbers out in full — for 15, 30, 45, 60 and 90 minutes, across all four weight bands, and against four comparable activities at the same weight — so you can plan sessions with real figures instead of guessing.
Racquetball is played in an enclosed court with a fast, bouncy ball and a short racket: the ball can be played off any wall, so rallies are long, fast and unpredictable, and players move constantly. The Compendium rates it at 7.0 METs, reflecting the near-continuous movement in a small space.
It suits players who want a fast, forgiving racket sport: the bouncy ball and the walls make rallies easier to sustain than in squash, so beginners get a good workout from the first session. It is popular in gyms and clubs for exactly that reason. The headline number to remember is 385 kcal per hour at 55 kg, or about 192 kcal for a 30-minute session. Everything below is an estimate: MET values are population averages, and your own burn will vary with fitness, technique and conditions. That does not make the numbers useless — it makes them a planning tool, and a good one, as long as you treat them as approximate.
Calculate your own numbers
Use the Calorie calculator to work out your own burn for playing racquetball at your exact weight and session length. Enter your weight, pick the activity and set the duration, and the tool applies the same MET formula shown below. You can also try the Maintenance calorie calculator to see how this session fits into your total daily energy use.
Related pages in this section:
The formula, shown and cited
The standard way to estimate the energy cost of an activity is the MET formula from the Compendium of Physical Activities (Ainsworth et al., Medicine & Science in Sports & Exercise, 2011; 43(8): 1575–1581):
Calories (kcal) = MET × body weight (kg) × duration (hours)
One MET is the energy you use sitting quietly at rest — about 1 kcal per kilogram of body weight per hour. An activity rated at 7 METs therefore uses 7 times as much energy as resting. The Compendium's MET values come from published studies that measured oxygen use during each activity, so they are measured averages, not guesses. The value used here, 7, is the one recorded for playing racquetball in the FitCalc activity data, taken from the 2011 Compendium.
Worked through for this page:
- MET for playing racquetball: 7
- Body weight: 55 kg (the midpoint of the 50–60 kg band, 110–132 lb)
- Duration: 1 hour
- Calculation: 7 × 55 × 1 = 385 kcal
For a 30-minute session the same calculation is 7 × 55 × 0.5 = 192 kcal. Nothing else is hidden in the maths — if your weight or duration changes, only those two numbers change.
Your numbers at 55 kg
| Duration | Calculation | Calories burned |
|---|---|---|
| 15 minutes | 7 × 55 × 0.25 | 96 kcal |
| 30 minutes | 7 × 55 × 0.5 | 192 kcal |
| 45 minutes | 7 × 55 × 0.75 | 289 kcal |
| 60 minutes | 7 × 55 × 1 | 385 kcal |
| 90 minutes | 7 × 55 × 1.5 | 578 kcal |
That is about 6 kcal per minute of playing racquetball at this weight. A short session still counts: even 15 minutes burns 96 kcal, and three 15-minute sessions across a day add up to the same 289 kcal as one 45-minute session.
How the burn changes with body weight
The MET value stays the same — it describes the activity, not the person — but the calorie total scales with weight, because a heavier body costs more energy to move:
| Body weight | Calories per hour | Calories per 30 minutes |
|---|---|---|
| 55 kg | 385 kcal | 192 kcal |
| 65 kg | 455 kcal | 228 kcal |
| 75 kg | 525 kcal | 262 kcal |
| 85 kg | 595 kcal | 298 kcal |
Two people doing the same activity for the same time can therefore burn quite different amounts, and that is expected — it is physics, not a mistake in the formula. If your weight sits between two rows, your figure sits between the two values.
How playing racquetball compares
Here is playing racquetball against four other activities at the same 55 kg, all using the same MET formula:
| Activity | MET | Calories per hour at 55 kg |
|---|---|---|
| playing racquetball | 7 | 385 kcal |
| playing squash | 12 | 660 kcal |
| playing competitive badminton | 7 | 385 kcal |
| playing tennis singles | 8 | 440 kcal |
| playing a basketball game | 8 | 440 kcal |
Use this table to choose, not to judge. A higher number means a harder session, not a better one: the activity you enjoy and repeat three times a week beats the activity that burns more per hour but that you quit after a fortnight. Mixing intensities across the week — one harder session, two easier ones — is usually more sustainable than doing the hardest activity every time.
Fitting playing racquetball into your week
| Sessions per week | 30 minutes each | 60 minutes each |
|---|---|---|
| 2 sessions | 385 kcal | 770 kcal |
| 3 sessions | 578 kcal | 1155 kcal |
| 5 sessions | 962 kcal | 1925 kcal |
At 7 METs, playing racquetball counts as vigorous-intensity activity, so it counts double towards the widely used adult activity target: 75 minutes of vigorous activity a week is the equivalent of 150 minutes of moderate activity. Two 30-minute sessions a week already give you 60 vigorous minutes and burn about 385 kcal a week at 55 kg. Because the intensity is high, it works best as one or two sessions a week inside a broader mix of easier activity and rest days — not as an everyday effort.
How to use the result
Wear protective eyewear every time — the ball is fast, the court is enclosed and the racket is short, so the ball is close to your face more often than in any other racket sport. Warm up your shoulders and knees, and learn the basic ceiling-ball shot early: it buys you time and keeps rallies going. Keep points going rather than going for a winner on every shot; long rallies are the workout. Two or three sessions a week is a good rhythm for most club players. Use the numbers on this page to set realistic expectations rather than to chase a daily total. If you are tracking food as well, add the session's calories to your total daily energy expenditure for that day, and remember that the figure is an estimate with roughly 10–20% uncertainty. Do not eat back every calorie the calculator shows: activity trackers and MET estimates both tend to overstate slightly, and a small margin keeps a weight-loss plan on track. If you are aiming to lose weight, keep the deficit modest — 300–500 kcal a day is a common, sustainable range — and keep your total intake above the safety floors of 1,200 kcal a day for women and 1,500 kcal a day for men unless a healthcare professional advises otherwise.
A match is usually best of three games to 15 points and lasts 30 to 60 minutes, with brief breaks between games. Rallies last longer than in squash because the ball is livelier and the walls keep it in play, so players spend most of the match moving — sprinting to the front wall, retreating for ceiling balls, and lunging for kills.
What the number does NOT tell you
The MET formula is honest about what it measures and silent about the rest. It does not account for your fitness level: a fit person burns fewer calories doing the same activity than an unfit person, because their body is more efficient. It does not account for body composition — two people at 55 kg with different amounts of muscle and fat will burn slightly different amounts. It does not include the afterburn (excess post-exercise oxygen consumption) that follows hard sessions, it does not measure strength, flexibility or balance gained, and it says nothing about how the activity affects your appetite, sleep or mood. It also cannot tell you whether the activity is safe for you: if you have a heart condition, joint problems, asthma or any other health concern, check with a healthcare professional before starting a new, intense activity. Use the calorie figure as a planning estimate, and judge the activity by how you feel doing it and whether you keep doing it.
The 7.0 MET figure is an average, but a match between evenly matched players with long rallies costs far more than a one-sided game. The court is small and the ball is fast, so the figure also says nothing about the eye risk or the joint load from constant lunging and direction changes — technique and footwear matter as much as fitness.
Frequently asked questions
How many calories do I burn playing racquetball for 30 minutes at 55 kg?
About 192 kcal. The maths is 7 METs × 55 kg × 0.5 hours = 192 kcal. That is an estimate from the Compendium average — your real burn depends on your fitness, your pace and the conditions. If you weigh more or less than 55 kg, use the weight table above to read your own figure.
Is playing racquetball good for weight loss?
It can help, but only as part of an overall calorie deficit. At 55 kg, an hour of playing racquetball burns about 385 kcal, which is a strong contribution — more than the energy in a full meal — but weight loss still comes from the total balance of food and activity across the week, not from one session. Aim for a gradual loss of 0.5–1% of body weight per week, and never drop below 1,200 kcal a day (women) or 1,500 kcal a day (men) without medical supervision.
How does playing racquetball compare with playing squash?
At 55 kg, playing racquetball burns about 385 kcal per hour against 660 kcal for playing squash. Playing squash is the more intense activity by this measure, because its MET value (12) is higher than the 7 METs for playing racquetball. The best choice is usually the one you will actually do several times a week — consistency matters more than a small difference in the hourly rate.
Does the calorie burn change if I weigh more or less than 55 kg?
Yes, directly. Calories = MET × weight in kg × hours, so the burn scales with body weight. At 55 kg the same hour of playing racquetball burns about 385 kcal; at 85 kg it burns about 595 kcal. The MET value itself does not change with weight — it describes the intensity of the activity.
How accurate is the 7 MET value for playing racquetball?
It is a population average from the 2011 Compendium of Physical Activities (Ainsworth et al.), which compiled measured energy costs across published studies. The Compendium lists an exact entry for playing racquetball, so the value is not a substitute or an estimate of a different activity. Individuals still vary by roughly 10–20% around the average because of fitness, body composition, technique and conditions. Treat 385 kcal per hour as a planning estimate, not a precise measurement of your own body.
Estimates only, not medical advice. Minimum safe intakes: 1,200 kcal/day women, 1,500 kcal/day men — consult a healthcare professional before a very-low-calorie diet.