A 45-minute SoulCycle-style ride burns roughly 300–600 calories, based on body weight, ride intensity, and power output.
Easy Pace
Typical Class
All-Out
New Rider
- Lower resistance; steady cadence
- Focus on form and breathing
- Shorter rises out of saddle
Gentle Start
Rhythm Rider
- Match the beat; mix intervals
- Moderate resistance with taps
- Arm set with light weights
Balanced Burn
Power Rider
- Higher watts, controlled surges
- Long climbs, fast sprints
- Stronger core & leg drive
Peak Output
Calories Burned In A SoulCycle Class: Real-World Ranges
Indoor rhythm cycling falls under “stationary bicycling.” Researchers classify effort with metabolic equivalents (METs). Spin-style classes sit around 8.5 METs in the Compendium, with moderate stationary cycling near 6.8 METs. That’s the engine behind the estimates.
Here’s the simple math riders use: calories ≈ MET × body weight (kg) × time (hours). A 70-kg person riding 45 minutes at 6.8 METs lands near 357 kcal. Bump to an 8.5-MET spin block and the same rider lands near 446 kcal. Longer climbs or higher watts push the total higher.
Quick Chart: 45-Minute Burn By Body Weight
This broad table uses the Compendium’s stationary cycling METs for a steady 45-minute class. “Spin-style” reflects that RPM/beat-based format.
| Body Weight | 45-Min Moderate (6.8 METs) | 45-Min Spin-Style (8.5 METs) |
|---|---|---|
| 57 kg (125 lb) | ~293 kcal | ~364 kcal |
| 70 kg (155 lb) | ~357 kcal | ~446 kcal |
| 84 kg (185 lb) | ~429 kcal | ~536 kcal |
| 95 kg (210 lb) | ~484 kcal | ~605 kcal |
Fat loss doesn’t come from the ride alone; steady calorie deficit over weeks drives the scale trend. Treat your class burn as one piece of the picture, not a pass to out-eat the work.
What Shapes Your Burn Inside The Studio
Two riders can sit on bikes side-by-side and finish with different totals. These are the levers that change the number on your tracker or bike screen.
Power Output And Resistance
Wattage is the cleanest signal. Higher resistance at a cadence you can hold raises energy cost. Spin-style formats often alternate long climbs with fast efforts, which increases average work across the set.
Cadence, Choreography, And Time Out Of The Saddle
Standing surges and tap-backs demand more from the legs and core. That extra muscle recruitment increases oxygen use and burn rate during those blocks.
Heart-Rate Response
Spending more minutes near your personal threshold yields a higher total. The same playlist can feel easy one day and tough the next; sleep, caffeine, hydration, and stress all shift your response.
Bike Fit And Technique
A clean setup—saddle height, fore-aft, and handlebar height—lets you drive power without rocking hips or overloading knees. Good form keeps effort on the big muscle groups that move the needle.
Where The Numbers Come From
Researchers use standardized MET values to estimate the cost of activities. Stationary cycling at 90–100 watts is listed near 6.8 METs, while 101–160 watts trends around 8.8 METs, and organized spin/RPM classes track around 8.5 METs. These reference points let you compute your own estimate for any ride length.
If you prefer a published cross-check, the Harvard calories chart lists 30-minute totals for stationary cycling across three body weights. The values line up with the MET approach and show how weight changes the same workout’s cost.
For a formal reference to effort definitions and class formats, the Compendium’s entry for spin/RPM places that studio style near 8.5 METs, and its watt-based stationary codes (90–100, 101–160, 161–200, and 201–270 watts) scale the estimate cleanly. See the exact lines in the Compendium MET codes.
Build Your Personal Estimate In Two Steps
Step 1: Pick A MET That Matches Your Ride
Scan your ride feel and bike readouts. If your studio bike shows average watts, match it to the closest range below. If you don’t have watts, use “moderate” when you could sing a few words while riding and “vigorous” when you’re breathy but in control.
Step 2: Do The Quick Math
Formula: calories ≈ MET × body weight (kg) × time (h). Convert pounds to kilograms by dividing by 2.205. For a 155-lb rider (70 kg), 45 minutes at 8.5 METs is 8.5 × 70 × 0.75 ≈ 446 kcal. At 11 METs, it’s ≈ 578 kcal.
Watts-To-MET Map For 45 Minutes
This table uses the Compendium’s watt-based codes for stationary cycling and converts to a 45-minute estimate for a 70-kg rider. Adjust up or down with your weight.
| Avg Output (Watts) | Approx MET | 45-Min @ 70 kg |
|---|---|---|
| 90–100 W | 6.8 METs | ~357 kcal |
| 101–160 W | 8.8 METs | ~462 kcal |
| 161–200 W | 11.0 METs | ~578 kcal |
| 201–270 W | 14.0 METs | ~735 kcal |
| Spin/RPM Class | 8.5 METs | ~446 kcal |
How Class Format Changes The Total
Intervals And Surges
Bursts above your steady pace elevate oxygen use during the work and for a while after you rack the bike. A class with several long efforts tends to raise the average compared with a flat, one-speed spin.
Climbs And Heavier Resistance
Climbs add torque. If your cadence drops too far, shift slightly lighter to keep smooth circles. Grinding doesn’t add much benefit and can beat up the knees.
Upper-Body Sets
Light dumbbell tracks spark the shoulders and arms, but the calorie number mostly comes from legs and lungs. Treat the arm block as a brief reset, then get back to the pedals.
Recovery And Fueling Tips That Help The Next Ride
Hydration And Sodium
Show up hydrated, sip during class, and add a pinch of sodium on hot days. Better hydration supports power, which nudges your burn higher without extra strain.
Carbs Before, Protein After
A small carb snack 30–90 minutes before class powers the early work. A protein-containing meal after class improves muscle repair so you can keep stacking consistent sessions.
Sleep And Stress
Short sleep and heavy stress dampen output. You’ll see it in the legs and in any device that tracks heart rate or readiness. Ease in, then build as the week allows.
Putting The Numbers To Work
Use class calories to plan weekly movement and meals. If body recomposition is your aim, pair 2–4 studio rides with strength training and balanced food choices across the week. Over time, morning energy, bike output, and clothes fit are steadier gauges than any single class readout.
Need a target for intake? A simple starting point is aligning daily food with your size and training load. If you want a walk-through, try our daily calorie needs guide.
FAQs You Didn’t Need—Just Clear Answers
How Do Studio Bikes Estimate Calories?
Most models blend power, cadence, and user data (age, weight, sometimes heart rate). They apply a lab-validated formula, then display a rolling total. Devices won’t match exactly across brands, so use the same bike style when you compare rides.
Why Does My Tracker Show A Lower Number Than The Bike?
Wrist sensors estimate from heart rate alone, which can lag during short surges. Bike consoles that include power usually trend higher and respond faster to sprints and climbs.
Is A 30-Minute Ride Enough To Make Progress?
Yes—especially with intervals. The Compendium and the Harvard chart both show healthy calorie totals in 30 minutes of stationary cycling. Stack short rides across the week when time is tight.