Hot Yoga Calories Burned: A Teacher's Guide to the Real Numbers
By Ian Terry, E-RYT 500 · Updated
Hot yoga calories burned in one class usually land between about 150 and 460 calories. A 60-minute session averaged around 155 calories in a lab study, while a 90-minute Original Hot 26&2 class averaged 286. The heat makes you sweat more, but it adds very little to the actual burn. Your body size and effort matter far more.
That answer surprises a lot of students. So this guide is written from the teacher's side of the podium. It's prepared by the YogaFX team led by Mr. Ian Terry, E-RYT 500, who has taught more than 12,000 hours of hot yoga. You'll see what four lab studies measured, why fitness watches overcount, and how to estimate your own number with our free calculator.
Hot Yoga Calories Burned: What the Lab Studies Measured
Most numbers online come from heart-rate guesses. Only a handful of research teams have measured hot yoga calories burned directly, using the oxygen a person breathes in and out. Those studies give us the most honest figures we have, and they agree on one big point: a hot class is real exercise, but it's light to moderate exercise.
| Study | Class and room | Who was tested | Calories measured |
|---|---|---|---|
| Pate and Buono, San Diego State University, 2014 | 90-minute standardized Bikram class | 24 adults, novice and experienced | 286 kcal on average (range 179 to 478) |
| Colorado State University (Tracy lab) | 90 minutes at 105°F, 40% humidity | 19 experienced practitioners | About 460 kcal for men, 330 for women |
| Lambert et al., Houston Methodist, 2020 | 60-minute Bikram sequence, heated vs room temperature | 16 experienced practitioners | 156 kcal heated vs 151 kcal room temperature |
| Porcari et al., University of Wisconsin-La Crosse, 2013 | 60-minute class at 92°F vs 70°F | 20 healthy, fit adults | Not reported; heart rate 57% vs 56% of max |
Notice the spread first. The range of 179 to 478 calories inside one study tells you more than any average. Two students on neighbouring mats can burn very different amounts in the same class, because body weight, experience and effort all change the result.
Hot yoga calories burned per hour versus per class
Many people want hot yoga calories burned per hour. Traditional 26&2 classes, though, run 90 minutes. So divide a 90-minute figure by 1.5 to compare it with a 60-minute class. For example, 286 calories over 90 minutes is roughly 190 calories per hour. That sits close to the 151 to 156 calories measured in the one-hour Houston study.
286 kcal
Average 90-minute class
Measured by breath analysis in 24 adults (Pate and Buono, 2014).
179 to 478
Range in one class
Same sequence, same room, very different burns.
+5 kcal
What the heat added
156 heated vs 151 room temperature over 60 minutes (Lambert et al., 2020).
3.7 vs 4.7
kcal per kg body weight
Novices vs experienced practitioners in a 90-minute class.
Does Hot Yoga Burn More Calories Than Regular Yoga?
Only slightly, if at all. This is the question students ask most, and the cleanest answer comes from Houston Methodist. Researchers had 16 experienced practitioners do the same one-hour Bikram sequence twice: once at about 105°F and once at room temperature. The Lambert study in the International Journal of Exercise Science found no meaningful difference in oxygen use or calories.
So does hot yoga burn more calories than regular yoga? Not by much. Hot yoga calories burned in that test were nearly identical. The heated session burned about 156 calories and the room-temperature session about 151. That five-calorie gap is smaller than a single apple slice. However, the heated session did shift fuel use. Students burned a little more fat and a little less carbohydrate in the heat.
A University of Wisconsin-La Crosse team found the same pattern from another angle. In their ACE-sponsored hot yoga study, heart rate reached 57% of maximum in a 92°F class and 56% in a 70°F class. That's almost identical. Yet students rated the hot class as harder. That feeling is real, but it comes mostly from the heat, not from extra muscular work.
Why the heat feels like a bigger burn
- Sweat. You lose water fast, so the scale drops after class. That's fluid, not fat, and it comes back when you drink.
- Heart rate. Your heart pumps blood to the skin to cool you down. A higher pulse looks like hard work on a watch, even when muscles aren't working harder.
- Effort perception. Heat makes the same posture feel tougher. Students often finish feeling wrung out, which is easy to mistake for a huge calorie number.
Why Your Watch Says 800 Calories (and Why It's Wrong)
Every teacher has heard it after class: "My tracker said I burned 800 calories!" Some studios even advertise 1,000. Here's the problem. Most wearables estimate calories from heart rate. Since heat pushes heart rate up without a matching rise in energy use, the watch overcounts.
Professor Brian Tracy at Colorado State University measured experienced practitioners in a 90-minute, 105°F class. His team found heart rates around 160 beats per minute, yet the metabolic rate looked like brisk walking. According to the Colorado State University report on the study, men burned about 460 calories and women about 330. Tracy called the heart-rate method "an inflated estimate of the calories being burned."
So treat a watch reading of 700 or 800 hot yoga calories burned as a ceiling, not a fact. In our teacher trainings, Mr. Ian Terry asks trainees to explain this calmly to students. People don't need a big number to keep coming back. They need an honest one they can plan around.
5 Things That Change Your Hot Yoga Calorie Burn
If the heat isn't the main driver of hot yoga calories burned, what is? Research and teaching experience point to the same short list. Each factor below can move your number by dozens of calories per class.
- Body weight. A heavier body uses more energy to lift, balance and hold. That's the main reason men averaged more than women in the Colorado State data.
- Experience. In the San Diego State study, experienced students burned 4.7 calories per kilogram versus 3.7 for novices. Because they knew the sequence, they worked closer to their limits and rested less.
- Class length. A 90-minute 26&2 class burns more in total than a 60-minute flow, simply because it lasts longer.
- Style. Hot vinyasa, hot power and hot sculpt classes keep you moving between poses. Holds-based classes rely on static strength, which burns a little less per minute.
- Time sitting out. Every posture you skip lowers the total. That's fine for safety, but it does change the number.
Here's a quick worked example using the San Diego State figures. A 70 kg beginner might burn roughly 260 calories in a 90-minute class (70 × 3.7). The same person after months of regular practice might reach about 330 calories (70 × 4.7). Practice, not temperature, closes that gap. That's the most useful fact about hot yoga calories burned for any new student.
Estimate Your Own Number With Our Free Calculator
Averages are useful, but your own estimate is more useful. Our free Bikram yoga calorie calculator asks for four things: your body weight, session length (30 to 90 minutes), practice intensity and heat type. Then it estimates hot yoga calories burned for that class, plus the water and sodium you'll want to replace afterwards.
Use the result as a planning range. For example, don't treat it as calories you must "earn back" with food. If your goal is weight change, our guide to hot yoga, sweat and real fat loss explains how a class fits into a wider plan.
Hot Yoga Calories Burned Compared With Other Workouts
Students often ask whether hot yoga beats walking, cycling or the gym. Harvard Health publishes estimates for common activities by body weight. The table below doubles its 30-minute figures to show one hour for a 155 lb (70 kg) person, next to measured hot yoga calories burned in one hour.
| Activity (60 minutes) | Calories, 155 lb person | Intensity | Source |
|---|---|---|---|
| Hot yoga, Bikram sequence | About 156 (measured group average) | Light to moderate | Lambert et al., 2020 |
| Hatha yoga, room temperature | About 288 | Light | Harvard Health estimate |
| Walking at 3.5 mph | About 266 | Moderate | Harvard Health estimate |
| Stationary cycling, moderate | About 504 | Moderate to vigorous | Harvard Health estimate |
| Weight lifting, general | About 216 | Light to moderate | Harvard Health estimate |
Yes, the hatha estimate is higher than the measured hot yoga figure. That's not because heat lowers the burn. Instead, the Harvard Health calorie table comes from general activity formulas, while the Houston figure came from breath analysis in a lab. Formula estimates usually run high.
The honest takeaway: hot yoga calories burned sit in the same band as a brisk walk. It won't match steady cycling or running for pure calorie burn. But it offers what those don't, such as flexibility, balance, strength in long holds and a focused mind.
How Teachers Should Talk About Calories in Class
This is where the teacher's view matters most. A new student's first question is often about bikram yoga calories, not about posture alignment. How you answer shapes whether they come back for class two. In YogaFX teacher training, Mr. Ian Terry coaches trainees to keep three habits.
- Give a range, not a promise. When a student asks about hot yoga calories burned, say: "Most people burn somewhere between 150 and 450 calories, depending on body size and effort." It's honest and still motivating.
- Separate sweat from fat. Students weigh themselves after class and get excited. Explain kindly that the drop is water and should be replaced.
- Praise effort and consistency. Experienced students burn more per kilogram because they work steadily through the sequence. That message rewards coming back, not punishing the body.
The same honesty applies to safety. Heat raises core temperature quickly. In a UW-La Crosse study of 90-minute, 105°F classes, the ACE report on Bikram core temperatures showed men peaking at an average of 103.2°F. So good teachers watch the room closely and encourage water breaks. Read our hot yoga temperature guide for the details.
Safe Ways to Get More From Each Class
You can raise your hot yoga calories burned safely, but not by chasing the heat. The research points to steady practice and full effort within your limits. These habits help most students:
- Arrive hydrated. Drink through the day before class, not just in the room.
- Do both sets. Repeating each posture is where much of the work happens, so stay in the second set when you can.
- Practise regularly. Two or three classes a week build the experience that raised calorie use in the San Diego State study.
- Stop when your body says stop. Dizziness, nausea or confusion mean sit down, cool off and tell the teacher.
If you're pregnant, have heart or blood pressure concerns, or take medication that affects heat tolerance, consult a healthcare professional before starting hot yoga. Calorie burn is never worth a heat illness.
Why the 26&2 Class Runs 90 Minutes
The Original Hot 26&2 sequence uses 26 postures and two breathing exercises, each done twice in most cases. It moves from standing balance and strength to floor work for the spine. That fixed order is why the bikram yoga calories burned figures from different labs line up so well: everyone does the same work.
The standing series is the most demanding part for most students. Awkward Pose, Standing Bow and Balancing Stick drive heart rate up through effort. Then the floor series slows things down and lets the body recover. If you want the full breakdown, see why a Bikram class lasts 90 minutes.
What Our Students Say About the Work in the Heat
Hot yoga calories burned are only part of the story. Students who train with us in Bali describe the effort in their own words, and it rarely sounds like a number on a watch.
"The heat doesn't break you, it reveals you. I left those sessions physically drained but mentally sharper and stronger than I've felt in a long time."
Jason, Google review, 2026
"Thank you very much to Mr Ian Terry, you are a good teacher & motivator, you have guided me as a beginner."
Eni, Google review, 2024
Ash shared a short video at the end of training, thanking "Mr Ian and the team" for "all the help and support that you have given us." You can watch it below.
Learn to Teach the Science With YogaFX
If you love the heat and want to explain it honestly to others, teaching may be your next step. YogaFX was founded in Bali in 2017 by Mr. Ian Terry. He trained for five years, from 2014 to 2019, with the founder of the Bikram Hot 26&2 method, and he's a Master Trainer for the Republic of Indonesia Yogasana Sports Federation.
More than 1,500 graduates from 80+ countries have trained with us. Every one learns to explain topics like hot yoga calories burned with real evidence, not studio myths.
The 6-day hybrid MasterClass starts with online study at home, then finishes with an intensive at Soham Wellness Center in Seminyak. You graduate with Yoga Alliance RYT 200 and Bikram Hot 26&2 200-hour certification. The next intake runs January 24 to 29, 2027. The Early Bird price is US$1,899 (normally US$1,999), and interest-free instalments start from US$250 a month.
Want to talk it through first? Message Mr. Ian on WhatsApp and ask anything about the training, the heat or teaching.
Hot Yoga Calories FAQ
How many calories does an hour of hot yoga burn?
Lab measurements suggest roughly 150 to 200 calories for a one-hour hot yoga class. A Houston Methodist study measured about 156 calories in a heated 60-minute Bikram sequence. Heavier, more experienced students who work hard burn more, while beginners who rest often burn less.
Does hot yoga burn more calories than regular yoga?
Barely. When the same 16 practitioners did the same one-hour sequence heated and at room temperature, they burned about 156 and 151 calories. The heat raised sweat and made the class feel harder, but it added only a few calories to the total burn.
Why does hot yoga burn so many calories?
It usually burns fewer calories than people think. Heat pushes heart rate up while the body cools itself, so fitness watches that use heart rate tend to overestimate the burn. Researchers at Colorado State University called those heart-rate figures an inflated estimate of real energy use.
How many calories does hot yoga burn in 90 minutes?
A standard 90-minute 26&2 class averaged 286 calories in a San Diego State study, with individual results from 179 to 478. Colorado State researchers measured about 460 calories for men and 330 for women. Body weight, effort and experience explain most of the difference.
Does hot yoga burn calories for weight loss?
Yes, hot yoga burns calories, so it can support weight loss as part of a wider plan. Most of the drop on the scale after class is water from sweat, though. Lasting fat loss depends on regular activity, sensible eating, sleep and rehydrating properly after each session.
Still have questions? Message Mr. Ian and the YogaFX team on WhatsApp and we'll answer them personally.
