Pilates can help you lose weight, but it works best as part of a broader strategy rather than as your sole calorie-burning tool. A meta-analysis of 11 randomized controlled trials found that Pilates reduced body weight by about 5 pounds, BMI by roughly 1 point, and body fat percentage by around 4% in adults who were overweight or obese. Those are meaningful numbers, but they come with important context about how Pilates achieves them and what you can do to get better results.
How Many Calories Pilates Actually Burns
Pilates is a moderate-intensity workout, and its calorie burn reflects that. A 150-pound person burns roughly 220 calories in an hour of reformer Pilates. Mat Pilates tends to burn slightly less since there’s no spring resistance involved. For comparison, a 155-pound person burns about 288 calories per hour doing a yoga-style flow, around 350 calories per hour walking briskly at 4 mph, and roughly 504 calories per hour doing high-impact aerobics.
So if you’re purely chasing calorie burn per minute, Pilates isn’t the most efficient option. But calorie burn during the session is only part of the picture.
Where Pilates Shines: Body Composition
The real strength of Pilates for weight management is what it does to your body composition over time. An eight-week reformer Pilates program in sedentary women produced significant reductions in body fat percentage, visceral fat (the deep abdominal fat linked to metabolic disease), and waist circumference, while simultaneously increasing muscle mass. That combination of losing fat and gaining muscle is harder to achieve than it sounds, and it matters more than the number on the scale.
Pilates builds functional strength in ways that show up clearly in testing. One study of post-menopausal women found improvements of 23% in lower-body strength, 31% in abdominal strength, and 8% in grip strength after a Pilates program. However, that same study found no changes in overall body composition, and the researchers attributed this to two factors: the exercise volume was relatively low, and participants weren’t following any dietary plan. This is a pattern that repeats across the research: Pilates alone can improve your strength and how your body moves, but shifting your weight and body fat typically requires pairing it with dietary changes.
Pilates Plus Diet Changes the Equation
A study comparing two groups of women with obesity tells this story clearly. Both groups followed the same calorie-restricted Mediterranean diet. One group also did home-based Pilates sessions. After the intervention, the Pilates-plus-diet group dropped their body fat percentage from about 44% to 39% and gained significant muscle mass. The diet-only group? Their body composition barely changed, going from roughly 43% to 41% body fat with no meaningful muscle gain.
This is a crucial finding. Diet alone reduced their weight on the scale but didn’t reshape their bodies. Adding Pilates preserved and even built muscle while accelerating fat loss. Muscle tissue burns more calories at rest than fat does, so gaining muscle while losing fat creates a compounding effect: your body gradually becomes more metabolically active even when you’re not exercising.
The Stress Hormone Connection
Pilates has a less obvious advantage for weight loss that comes through stress reduction. The combination of controlled movement, focused breathing, and mindfulness activates your body’s calming nervous system response. This matters because chronically elevated stress hormones promote fat storage, particularly around the abdomen. People with conditions that cause excess stress hormone production commonly develop abdominal fat gain and blood sugar problems. While the cortisol-lowering research is strongest for yoga specifically, Pilates shares the same core mechanisms of breathwork and mindful movement that drive that effect.
If stress eating or poor sleep from chronic stress are part of your weight gain pattern, this indirect benefit may be just as valuable as the calories you burn during class.
How Often You Need to Practice
The clinical trials showing real body composition changes generally used programs of three sessions per week, each lasting about 50 to 60 minutes. Starting with three to five sessions per week for the first month helps build the habit and baseline strength, then settling into three weekly sessions is enough to maintain progress. Consistency matters more than intensity here. Eight weeks at three sessions per week is a reasonable timeline for noticing visible changes in how your body looks and feels.
Results were more pronounced in participants who started with a higher body weight. The meta-analysis found that people with obesity lost closer to 8 pounds on average from Pilates, compared to the overall average of about 5 pounds across all overweight participants.
Making Pilates Work for Weight Loss
The most effective approach, based on the available evidence, combines three elements. First, Pilates sessions three times per week to build muscle, reduce visceral fat, and improve how your body handles stress. Second, a moderate caloric deficit through your diet, since Pilates alone doesn’t burn enough calories to outpace overeating. Third, patience with the scale. Because Pilates builds muscle while reducing fat, your weight may not change dramatically even as your waist circumference shrinks and your clothes fit differently.
If your primary goal is burning the maximum number of calories per session, higher-intensity activities like running or cycling will get you there faster. But if you want a sustainable practice that reshapes your body composition, protects your joints, builds core strength, and reduces stress, Pilates earns its place in a weight loss plan. It’s not the fastest path to a calorie deficit, but it changes your body in ways that a treadmill alone often doesn’t.