Pilates can help you lose weight, but it works more slowly than most people expect. A meta-analysis of clinical trials found that people with overweight or obesity who did Pilates lost an average of about 5 pounds and reduced their body fat percentage by roughly 4 points. Those are real results, but they reflect weeks of consistent practice, and they’re modest compared to what higher-intensity exercise can deliver in the same timeframe.
The honest answer is that Pilates alone is a slow path to weight loss. Combined with dietary changes or other exercise, it becomes a much more effective piece of the puzzle.
How Many Calories Pilates Actually Burns
The calorie burn from Pilates depends heavily on the type you’re doing and your experience level. Mat Pilates, the kind you can do at home with no equipment, burns roughly 175 to 350 calories per hour. Reformer Pilates, which uses a sliding carriage with spring resistance, burns more: around 250 to 450 calories per hour. A beginner in a 50-minute mat class will land toward the lower end of that range, while someone doing an advanced reformer session at a steady pace will push toward the upper end.
For context, one study comparing Pilates to walking found that the energy expenditure during a Pilates session was similar to walking at about 2 miles per hour, which is a slow, casual pace. Walking at 3 miles per hour burned significantly more energy. That comparison surprises a lot of people, because Pilates feels harder than a slow walk. The intensity is real, but it’s concentrated in specific muscle groups rather than driving up your heart rate the way cardio does. This means Pilates is not an efficient calorie burner relative to how challenging it feels.
What the Clinical Research Shows
A meta-analysis published in Frontiers in Physiology pooled data from multiple trials involving adults with overweight or obesity. The results showed that Pilates produced statistically significant reductions in body weight (about 5 pounds on average), BMI (about 1.2 points), and body fat percentage (about 4 percentage points). These aren’t dramatic transformations, but they’re meaningful, particularly the drop in body fat percentage.
Interestingly, Pilates did not significantly reduce waist circumference in those same studies. It also didn’t increase lean body mass. A separate pilot study in post-menopausal women confirmed this pattern: 12 weeks of mat Pilates produced no meaningful changes in overall body composition, though it did slightly increase limb muscle mass. The researchers noted that participants weren’t following any particular diet, which likely limited the results.
That’s an important finding. Pilates reshapes how your body moves and how strong you feel, but without dietary changes, the scale may not move much.
Metabolic Benefits Beyond the Scale
Weight loss isn’t the only way exercise improves your health, and Pilates has some metabolic effects worth knowing about. An 8-week study in overweight women found that Pilates training reduced fasting blood sugar, lowered insulin levels, and improved insulin resistance. These are markers of how efficiently your body processes energy, and improving them reduces your risk of type 2 diabetes regardless of what the scale says.
The same study found that Pilates increased levels of a hormone called irisin, which your muscles release during exercise. Irisin helps convert stored white fat into a more metabolically active form, essentially nudging your body toward burning more energy even at rest. The effect isn’t dramatic enough to replace a calorie deficit, but it’s one of the ways regular Pilates practice shifts your metabolism in a favorable direction over time.
How Long Before You See Results
Most studies showing measurable changes in body composition use 8- to 12-week protocols. One study tracking women through an 8-week mat Pilates program found significant decreases in body fat percentage and visceral fat (the deep abdominal fat linked to metabolic disease). Those improvements were real, but here’s the catch: after just 3 weeks of stopping, body fat levels returned to baseline. Consistency matters more with Pilates than with some other forms of exercise, because the calorie burn per session is relatively low. The benefits accumulate through regularity, not intensity.
If you’re starting from a sedentary baseline, you’ll likely notice changes in how your body feels and looks within 6 to 8 weeks of practicing two to three times per week. Visible weight loss on the scale typically takes longer unless you’re also adjusting what you eat.
Why Pilates Works Better as Part of a Plan
Pilates has genuine strengths that other exercises don’t. It builds deep core stability, improves posture, increases flexibility, and strengthens muscles in a low-impact way that’s sustainable for people who can’t tolerate running or heavy lifting. These qualities make it excellent for long-term fitness. But as a standalone weight loss strategy, it has a clear limitation: it simply doesn’t burn enough calories to create a large energy deficit on its own.
A practical approach is to use Pilates as one component of a broader routine. Pairing two or three Pilates sessions per week with some form of cardio (even brisk walking at a pace faster than 3 miles per hour) significantly increases your total calorie burn. Adding attention to your diet closes the gap further. The research consistently shows that people who combine Pilates with dietary changes see larger reductions in body fat than those doing Pilates alone.
One underrated benefit of Pilates for weight loss is that it builds body awareness. People who practice regularly often report making better food choices and feeling more connected to physical cues like hunger and fullness. That’s hard to measure in a study, but it’s a real advantage that compounds over months and years. Pilates may not be the fastest route to losing weight, but for many people it becomes the habit that makes everything else easier to sustain.