Estimate calories and kilojoules burned in an aerobics class, based on your body weight, class intensity, and session length. This calculator uses three tiers drawn from the Conditioning Exercise section of the 2024 Adult Compendium of Physical Activities: low-impact aerobic dance, where at least one foot stays in contact with the floor throughout, a general aerobics class covering typical mixed step-and-choreography formats, and high-impact aerobic dance built around hops, jumps and other airborne movements. All three MET values used here are literature-supported figures from the Compendium, not flagged as estimates.
Aerobics calorie burn is estimated with calories = MET × body weight (kg) × duration (hours), using three MET values from the Conditioning Exercise section of the 2024 Adult Compendium of Physical Activities: low-impact aerobic dance (MET 4.8), general aerobics class (MET 7.3), and high-impact aerobic dance (MET 8.0). A 65 kg person over a 60-minute session burns around 312 kcal (about 1,305 kJ) doing low-impact aerobic dance, around 475 kcal (about 1,985 kJ) in a general aerobics class, and around 520 kcal (about 2,176 kJ) doing high-impact aerobic dance. All three MET values used on this page are literature-supported figures in the Compendium, not flagged as estimates.
| Aerobics Type | MET | Calories | Kilojoules |
|---|
The calculation uses a MET (Metabolic Equivalent of Task) value for your class intensity, your body weight, and how long you exercised. This calculator uses three MET tiers taken directly from the Conditioning Exercise section of the 2024 Adult Compendium of Physical Activities — low-impact aerobic dance (code 02005, "Aerobic, low impact", MET 4.8), a general aerobics class (code 02000, "Aerobics, general", MET 7.3), and high-impact aerobic dance (code 02006, "Aerobic, high impact", MET 8.0). Because aerobics classes are usually measured in minutes rather than hours, the calculator takes your minutes input and converts it to hours (hours = minutes ÷ 60) before applying the formula.
| Aerobics Type | MET | Calories (65 kg, 60 min) | Kilojoules |
|---|---|---|---|
| Low-impact aerobic dance | 4.8 | 312 kcal | 1,305 kJ |
| General aerobics class | 7.3 | 475 kcal | 1,985 kJ |
| High-impact aerobic dance | 8.0 | 520 kcal | 2,176 kJ |
Aerobics classes cover a wider range of physical effort than the single word "aerobics" tends to suggest, which is why this calculator splits it into three tiers rather than a single number. Low-impact aerobic dance keeps at least one foot on the floor at all times — think wide steps, marching, arm sweeps and controlled lunges — so the joint loading through the knees, hips and ankles stays comparatively gentle even though the continuous movement, larger muscle engagement and elevated heart rate still make it genuine cardio work. A general aerobics class sits in the middle: the typical gym-floor format most people picture when they hear "aerobics," blending step patterns, light choreography and some travelling movement at a pace that pushes into solidly moderate-to-vigorous territory for most of the session. High-impact aerobic dance is the most demanding of the three, built around hops, jumps & other moments where both feet leave the floor together — it drives the highest calorie burn per hour of the three tiers, but that extra intensity comes with meaningfully more impact loading through the knees, shins and ankles, so it generally suits people with reasonable joint health, supportive footwear and a suitable floor surface, rather than everyone.
The table below holds the class intensity constant at the general aerobics class tier (MET 7.3) for a 60-minute session, so you can see how much body weight alone changes the total.
| Body Weight | MET | Calories (60 min) | Kilojoules |
|---|---|---|---|
| 55 kg | 7.3 | 402 kcal | 1,680 kJ |
| 65 kg | 7.3 | 475 kcal | 1,985 kJ |
| 75 kg | 7.3 | 548 kcal | 2,291 kJ |
| 85 kg | 7.3 | 621 kcal | 2,596 kJ |
| 95 kg | 7.3 | 694 kcal | 2,902 kJ |
Classes run to different lengths, from a quick 15-minute circuit to a full hour-long session. Here body weight is fixed at 65 kg while duration and class intensity both change, so you can compare how much a longer session and a higher-impact tier each add to the total.
| Duration | Low-Impact (MET 4.8) | General Class (MET 7.3) | High-Impact (MET 8.0) |
|---|---|---|---|
| 15 minutes | 78 kcal / 326 kJ | 119 kcal / 496 kJ | 130 kcal / 544 kJ |
| 30 minutes | 156 kcal / 653 kJ | 237 kcal / 993 kJ | 260 kcal / 1,088 kJ |
| 45 minutes | 234 kcal / 979 kJ | 356 kcal / 1,489 kJ | 390 kcal / 1,632 kJ |
| 60 minutes | 312 kcal / 1,305 kJ | 475 kcal / 1,985 kJ | 520 kcal / 2,176 kJ |
Australian nutrition panels list energy in kilojoules, not calories, so it's worth converting your session total into the same unit your food packaging uses. Multiply your calorie figure by 4.184 to get kilojoules. A 65 kg person doing a 60-minute high-impact aerobic dance class burns about 520 kcal, which is roughly 2,176 kJ — a useful figure to weigh up against the energy value of a post-class snack or meal.
How many calories does aerobics burn?
It depends on class intensity and session length. Using this calculator's three tiers for a 65 kg person over a 60-minute session: low-impact aerobic dance (MET 4.8) burns about 312 kcal (1,305 kJ), a general aerobics class (MET 7.3) burns about 475 kcal (1,985 kJ), and high-impact aerobic dance (MET 8.0) burns about 520 kcal (2,176 kJ). Lighter or heavier people, and shorter or longer sessions, will see proportionally lower or higher totals, so enter your own weight and session length above for a personalised estimate.
How is calories burned aerobics calculated?
The calculator multiplies a MET (Metabolic Equivalent of Task) value for your class intensity by your body weight in kilograms and your session duration in hours: calories = MET × body weight (kg) × duration (hours). Because most aerobics classes are measured in minutes rather than hours, the calculator takes your minutes input and divides by 60 before running the formula. The three MET values used — 4.8 for low-impact aerobic dance (code 02005), 7.3 for a general aerobics class (code 02000), and 8.0 for high-impact aerobic dance (code 02006) — come directly from the Conditioning Exercise section of the 2024 Adult Compendium of Physical Activities. The kilocalorie result is then multiplied by 4.184 to give the equivalent figure in kilojoules, the unit used on Australian food labels.
Does low-impact vs high-impact aerobics make a big difference in calories burned?
Yes, a meaningful one. High-impact aerobic dance (MET 8.0) burns noticeably more per hour than low-impact aerobic dance (MET 4.8) — for a 65 kg person over 60 minutes, that's roughly 520 kcal versus 312 kcal, a difference of about 208 kcal for the identical body weight and duration. The gap comes from the jumps, hops & airborne movements that define the high-impact tier, which demand more muscular power and cardiovascular effort than keeping one foot grounded throughout. That extra calorie burn does come with more impact loading through the joints, so the "bigger difference" isn't purely a calories-burned story — see the injury-risk question below.
Is aerobics good for weight loss?
Aerobics classes can be a useful part of a weight-loss approach because they burn a meaningful number of calories per session and, done regularly, contribute to the calorie deficit that drives fat loss over time. That said, sustainable weight loss is generally driven mainly by overall dietary intake and total weekly energy balance rather than any single workout, so aerobics is best thought of as one contributor among several — regular movement, resistance training, and eating habits all play a role. This calculator estimates energy expenditure for a single session; for the bigger weight-management picture, our calorie deficit calculator and TDEE calculator may be useful next steps.
Does body weight affect the result?
Yes. Because calories equal MET multiplied by body weight in kilograms multiplied by duration in hours, body weight is a direct multiplier in the formula. At the general aerobics class tier (MET 7.3) for a 60-minute session, a 95 kg person burns roughly 694 kcal compared with about 402 kcal for a 55 kg person completing the identical session at the identical intensity.
What are the limitations of this calorie estimate?
MET-based estimates like this one describe the average energy cost of a typical class at each intensity tier — they don't account for your personal fitness level, how hard you personally pushed within a class, muscle mass, age, sex, or exactly how the choreography in your specific class compared with the Compendium's reference activity. Two people doing what looks like the "same" aerobics class can burn meaningfully different amounts of energy in real life. Treat the numbers here as a solid planning estimate rather than a lab-measured figure for your individual body.
How does aerobics compare to HIIT, Zumba, or dancing for calorie burn?
They're related but distinct activities with their own MET profiles. HIIT training alternates short bursts of near-maximal effort with rest periods, which can push average intensity higher than continuous aerobics for the work intervals, but the rest periods pull the session average back down — use our HIIT calorie calculator for that format. Zumba is a specific branded dance-fitness program with its own choreography and class structure, covered by our Zumba calorie calculator. Social and ballroom dancing — a night out, slow dancing, fast social dancing — is a different context again, covered by our dancing calorie calculator. This page is specifically for structured, instructor-led step and aerobic-dance classes, so if your session was one of those other formats, the dedicated calculator will give you a closer MET match.
Is low-impact aerobics still an effective workout?
Yes. Even though low-impact aerobic dance (MET 4.8) burns fewer calories per hour than the high-impact tier, it still sits well above light or sedentary activity and delivers genuine cardiovascular benefit through continuous, elevated-heart-rate movement. It's also a sensible starting point or ongoing choice for beginners, people returning from injury, older adults, or anyone managing joint sensitivity, since keeping one foot on the floor at all times greatly reduces impact loading compared with the high-impact tier. Effective doesn't have to mean maximally intense — consistency at a sustainable intensity is often more valuable long-term than an intensity level someone can't maintain.