Written by Joseph Berridge, Founder of Joga Yoga
A 60-minute hot yoga class burns an estimated 220 to 500 calories. Your body weight sets most of that range, and how much the class actually moves sets the rest.
Flowing heated styles land at the top of that range. Bikram and other static-hold styles land lower than most people expect, because holding a posture burns less than moving between postures. A hot room raises your sweat rate well past a room-temperature class, but sweat doesn’t burn calories. Movement does.
We run daily hot yoga and Vinyasa classes in Canggu, Bali, and built the calculator below because most online estimates skip the two things that change your number most: your weight and the style of class you took. Enter both and you’ll get a figure that’s at least anchored to your own body instead of an average.
Hot Yoga Calorie Calculator
Enter your weight, class length and yoga style. Add your average heart rate if you tracked it. The calculator returns an estimated burn plus rough fluid and sodium loss.
Hot Yoga Calorie Calculator
Estimate by weight, style and class length
Heat raises heart rate on its own, so this mode runs high in a hot room. The style-based estimate is more reliable for heated classes.
Fluid loss
~0ml (0oz)
Sodium loss
~0mg Na
Same weight and duration, other styles
Where the MET numbers come from: The Compendium of Physical Activities publishes MET values for Hatha yoga (2.5) and power yoga (4.0). It has no published value for Bikram or heated vinyasa, so the three heated options above are our own estimates, scaled up from the power yoga figure and marked “est.” in the dropdown. Treat them as a comparison tool between your own sessions, not a lab measurement.
What the Research Actually Measured
Only one controlled study has measured real energy expenditure during a heated class. Colorado State University researcher Brian Tracy tracked 90-minute Bikram sessions and recorded an average of 460 calories for men and 330 for women. Body size, not effort, explained most of the gap between the two groups.
Scale that to a 60-minute class and you get roughly 305 calories for men and 220 for women. That’s not a clean fraction, though, because a shorter class also means less total heat exposure.
Tracy’s team also logged heart rates averaging 160 beats per minute and core temperatures near 100.3°F, both inside a safe range for healthy adults. That heart rate figure matters later, because it’s exactly what makes wearables overstate your burn.
Source: Colorado State University
How the Calculator Works
MET stands for Metabolic Equivalent of Task. One MET is the energy your body uses at rest. A higher MET means higher effort. Hot yoga usually carries a higher MET than a room-temperature class because the heat pushes breathing and heart rate up.
The formula is standard:
Calories per minute = (MET × 3.5 × weight in kg) ÷ 200
Multiply that by the minutes you practiced. MET is the effort level of the style. The 3.5 is a fixed constant in every MET calculation, and 200 is part of the conversion.
The framework itself comes from the Compendium of Physical Activities, the reference researchers use to compare activities against each other. MET values for yoga vary between sources because room heat, pace, and how much a given class moves aren’t identical from studio to studio.
Two people in the same class can still burn different amounts. Effort and fitness level change the number, and so does how much you actually move through each pose rather than settling into it. Compare your own sessions against each other and the calculator earns its keep. Compare your number against a friend’s and it doesn’t.
Bikram vs Heated Vinyasa: Which Burns More?
Heated vinyasa usually burns more than Bikram. It keeps you moving continuously, while Bikram holds you in fixed postures with pauses in between.
Why heated vinyasa comes out ahead
Heated vinyasa moves from pose to pose with the breath and doesn’t build in long pauses. Heart rate stays elevated for longer and there’s less rest between postures, which raises total energy use across the class.
Why Bikram burns less than people expect
Bikram runs a fixed sequence of 26 postures, and most are held rather than flowed through. Heart rate rises and falls with each posture instead of staying up, so the body leans on endurance rather than continuous cardio work. The heat increases sweating. Sweating doesn’t raise calorie burn.
Myth vs fact: Sweating more doesn’t mean burning more. Heat increases water loss. It doesn’t increase energy use.
Why Your Fitness Tracker Disagrees
Your smartwatch probably overstates your hot yoga burn. It estimates calories from heart rate, and heat raises heart rate on its own, separately from how much muscle work you’re doing.
Stanford Medicine tested seven popular wearables against lab-grade measurement. The devices read heart rate accurately, within about 5 percent. Their calorie estimates were off by 27 to 93 percent depending on the device. A heated room pushes that error higher, because your watch can’t distinguish a heart rate spike from movement from one caused by your body working to cool itself.
This is why two people leave the same 60-minute class with numbers 200 calories apart on their wrists after moving through the same sequence at the same pace. It’s not really about either of them. It’s about what the device can measure.
Dehydration adds to the confusion. The scale often drops right after a hot class. That’s water loss, and it comes back when you rehydrate.
Source: Stanford Medicine
Is Hot Yoga Effective for Weight Loss?
Hot yoga supports weight loss if you practice consistently and hold a calorie deficit over time. It isn’t a shortcut, and what you eat matters more than the number this calculator gives you after one class.
If you practice in Bali, factor in the climate. Canggu is already warm and humid, so a heated room pushes your sweat rate higher than the same class would in a cooler city. Drink before class, not only after.
How hot yoga helps
Flowing styles raise energy use during the class. Held poses and repeated movement build lean muscle, and more muscle raises resting metabolism over time. Movement-based practices like this also improve circulation and recovery, so you bounce back faster from other training.
Stress does more damage to weight management than most people account for. Yoga’s effect on the nervous system can lower stress-driven eating, and over months that outweighs any single class’s calorie count.
Mistakes that cancel out the work
- Eating more after class than the session burned
- Reading sweat as fat loss when it’s water weight
- Judging progress off one wearable reading instead of weeks of practice
How to Burn More, Safely
- Pick flowing styles like heated vinyasa or power yoga if burn is the goal
- Engage your muscles actively instead of relying on flexibility to get through a pose
- Hydrate before, during and after, not just afterward
- Practice consistently rather than cramming sessions into a short window
Overheating lowers performance. Pushing too hard in a hot room produces fatigue, not a bigger number.
Hot yoga works best when you pick a style you’ll actually show up for. Some people burn more in flowing classes. Others do better in slower classes that build strength and focus. Look at the full range of yoga styles before deciding what fits your body and your schedule.
Joga Yoga Training is a Yoga Alliance Registered Yoga School running daily hot yoga, Hatha and Vinyasa classes in Canggu, Bali, alongside Yoga Alliance-certified teacher training programs.
Frequently Asked Questions
How many calories does hot yoga burn in 60 minutes?
Most adults burn 220 to 500 calories in a 60-minute hot yoga class. Body weight is the biggest single factor, followed by how much the class actually moves. Flowing heated styles sit at the top of that range and static-hold styles like Bikram sit lower.
How many calories does a 90-minute Bikram class burn?
A Colorado State University study measuring energy expenditure during 90-minute Bikram sessions found men burned about 460 calories and women about 330. Body size explained most of the gap between the two groups.
Does Bikram yoga burn more calories than heated vinyasa?
Usually not. Heated vinyasa keeps you moving continuously, so heart rate stays elevated. Bikram holds static postures with pauses that let heart rate drop between poses.
Is hot yoga good for weight loss?
Hot yoga supports weight loss when practiced regularly alongside a calorie deficit. It works as part of a routine rather than on its own, and nutrition matters more than any single class’s calorie count.
Why does my fitness tracker show a different number than this calculator?
Trackers estimate calories from heart rate, and heat raises heart rate independently of muscle work. Stanford Medicine found wearables measure heart rate within about 5 percent but miss calorie burn by 27 to 93 percent. A heated room widens that gap.
Does sweating more mean burning more calories?
No. Heat increases water loss, not energy use. The weight drop on the scale after a hot class is fluid, and it returns once you rehydrate.
Train and Practice Yoga in Bali
Daily hot yoga, Hatha and Vinyasa classes with Joga Yoga Training in Canggu, or go further with a Yoga Alliance-certified teacher training.
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