Work out roughly how many calories and kilojoules a water polo session burns, based on your body weight and how long you played. Water polo asks a lot of the body — every movement, from treading water to sprinting to shooting, happens without a wall or a pool floor to push off or rest against.
Water polo carries a MET value of 10.0, putting it among the more demanding team sports on this site — the constant treading water alone, before any sprinting or wrestling for position is added, keeps the body working continuously. Calorie burn is estimated as calories = MET × body weight (kg) × time playing (hours). A 70 kg player in the water for a 45-minute session burns roughly 525 kcal, about 2,197 kJ. Because there is no resting position in water polo — players must support their own body weight the entire time they're in the pool — the calorie cost stays high even during slower phases of play.
| Session Length | Calories | Kilojoules |
|---|
The calculation multiplies three inputs together: a MET (Metabolic Equivalent of Task) value for water polo, your body weight, and the time you actually spent playing. The 2024 Adult Compendium of Physical Activities lists "water polo" under code 18360 with a MET value of 10.0, which the calculator multiplies by your weight in kilograms and your playing time in hours to produce an estimated calorie figure, then converts that to kilojoules for Australian food-label comparison.
Water polo earns its high MET value honestly. Players spend the entire match supporting their own body weight in deep water using an "eggbeater" kick — an alternating circular leg motion that keeps the torso high enough to see, pass, shoot and defend — while there is no wall, floor or bench to lean on or rest against during play. Layered on top of that constant treading is repeated sprint swimming to change position or chase the ball, physical wrestling and jostling for position against an opponent, and the explosive upper-body effort of throwing the ball at speed. Unlike pool swimming, where the body is horizontal and streamlined and rest is possible by simply floating, water polo keeps the body vertical, engaged and working for almost the full duration of a session, which is a large part of why its MET value sits well above recreational swimming.
Water polo is a genuinely strong sport in Australia, with a long-standing competitive tradition. Australia fields national teams that compete on the international stage, and the sport is supported by an established structure of state and club competitions across the country, alongside junior and school pathways that feed into higher levels of play. It doesn't have the mass participation of Australia's biggest football codes or swimming, but it has a solid and genuine following, particularly in coastal states with strong aquatic sport cultures. If you're interested in playing, a local club affiliated with your state water polo association is generally the best place to start.
This table holds session length constant at 60 minutes of water polo, so you can see how much body weight alone changes the total.
| Body Weight | MET | Calories (60 min) | Kilojoules |
|---|---|---|---|
| 60 kg | 10.0 | 600 kcal | 2,510 kJ |
| 70 kg | 10.0 | 700 kcal | 2,929 kJ |
| 80 kg | 10.0 | 800 kcal | 3,347 kJ |
| 90 kg | 10.0 | 900 kcal | 3,766 kJ |
| 100 kg | 10.0 | 1,000 kcal | 4,184 kJ |
Because body weight is a straight multiplier in the formula, a 100 kg player burns two-thirds more than a 60 kg player over the identical hour of water polo — and even at the lighter end of that range, the totals sit above most other team sports on this site because of water polo's high MET value.
Here body weight is fixed at 70 kg while session length changes, since water polo sessions vary — a short training drill, a full match, or a longer club session all take very different amounts of time.
| Session Length | Hours | Calories | Kilojoules |
|---|---|---|---|
| 15 minutes | 0.25 | 175 kcal | 732 kJ |
| 30 minutes | 0.5 | 350 kcal | 1,464 kJ |
| 45 minutes | 0.75 | 525 kcal | 2,197 kJ |
| 60 minutes | 1.0 | 700 kcal | 2,929 kJ |
| 90 minutes | 1.5 | 1,050 kcal | 4,393 kJ |
Australian nutrition panels list energy in kilojoules, not calories, so it helps to see your session in the same unit your food and drink packaging uses. Multiply your calorie figure by 4.184 to get kilojoules. A 70 kg player in the water for 45 minutes burns about 525 kcal, which is roughly 2,197 kJ — a substantial energy cost given how much of that time is spent simply staying afloat, before any sprinting, shooting or contact is counted.
How many calories does water polo burn?
For a 70 kg player in the water for a typical 45-minute session, water polo burns roughly 525 kcal, about 2,197 kJ. This uses a MET value of 10.0, reflecting the sport's continuous treading water combined with sprinting, physical contact and throwing, and scales directly with your own body weight and time played — use the calculator above for a figure based on your details.
Why is water polo so physically demanding compared to pool swimming?
Pool swimming keeps the body horizontal and streamlined, and a swimmer can rest at any point by pausing at the wall or floating. Water polo is different — players stay upright in deep water for the whole session, using an eggbeater kick just to keep their head and shoulders above the surface, with no wall or pool floor available during play. On top of that constant treading, players sprint to change position, physically contest the ball against an opponent, and throw with real power, all while still supporting their own body weight in the water. That combination of non-stop support work plus bursts of high effort is why water polo's MET value is noticeably higher than recreational lap swimming.
Is the water polo MET value based on published research?
Not entirely — it's worth being upfront about this. The 2024 Adult Compendium of Physical Activities lists "water polo" under code 18360 with a MET value of 10.0, but flags this specific code as an estimated value, shown in red in its source table. That means the figure is a reasonable planning estimate assigned by the Compendium's editors rather than a number confirmed through dedicated published research measuring water polo specifically. It's still the best available published figure for this sport, but treat it as an approximation rather than a laboratory-measured result.
Is water polo a good full-body workout?
Yes, genuinely so. Water polo works the legs continuously through the eggbeater kick, the core to keep the body stable and upright in water, and the shoulders and arms through swimming, passing and shooting — very few sports demand this much simultaneous lower-body endurance and upper-body power. At a MET of 10.0, it sits among the higher-intensity team sports on this site and delivers a genuinely full-body cardiovascular and muscular workout.
How do I convert calories to kilojoules for water polo?
Multiply your calorie figure by 4.184 to get kilojoules, since Australian nutrition panels list energy in kJ rather than kcal. For example, a 70 kg player burning 525 kcal in a 45-minute session has burned about 2,197 kJ — useful for comparing against the energy values printed on food and drink packaging.
Is water polo popular in Australia?
Water polo is a genuinely strong sport in Australia. Australia fields national teams that compete internationally, and the sport is supported by an established network of state and club competitions, along with junior and school pathways, particularly in states with strong aquatic sport traditions. It isn't as widely played as Australia's biggest football codes or swimming, but it has a solid and organised competitive base. Local clubs affiliated with your state water polo association are generally the best place to start if you want to play.
How does water polo compare to other water sports for calorie burn?
At a MET of 10.0, water polo burns calories faster than recreational or moderate-pace pool swimming, because players must continuously support their own body weight in the water on top of swimming and physical exertion. It's broadly comparable to, or higher than, many vigorous land-based team sports, reflecting just how much work is involved in staying afloat, sprinting and competing for position all at once.
Does playing position change how many calories water polo burns?
This calculator uses a single general MET value for water polo and doesn't distinguish between positions. In practice, field players who sprint and reposition constantly likely burn more than a goalkeeper, who covers less horizontal distance but still treads water continuously and works in short, explosive bursts to make saves. Treat the result as a whole-team average rather than a position-specific figure.
What are the limitations of this calorie estimate?
This calculator uses a single population-average MET value — one the Compendium itself flags as estimated rather than research-confirmed — multiplied by your body weight and playing time. It can't account for your playing position, how much of the session was spent in slower build-up play versus full-intensity contests, your swimming fitness and technique, water temperature, or individual differences in effort. Treat the result as a rough planning figure, not a precise or clinically measured number.