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Calories Burned
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⚠️ Disclaimer: Calorie estimates are based on the MET formula and average metabolic rates. Individual results vary by 20-30% based on fitness level, muscle mass, rest periods, and actual effort. For precise tracking, use a heart rate monitor or consult a certified fitness professional.
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Sources & Methodology
MET values verified from the 2011 Compendium of Physical Activities (Ainsworth et al.), the gold-standard reference used by exercise scientists and health researchers worldwide.
2011 Compendium of Physical Activities — Ainsworth et al.
MET values for weight lifting: general (3.5), vigorous (6.0), circuit training (8.0), powerlifting (6.0). Published in Medicine & Science in Sports & Exercise.
American Council on Exercise (ACE) — Exercise Science
Reference for caloric expenditure during resistance training, EPOC afterburn effect, and metabolic responses to strength training.
Methodology: Calories Burned = MET × Body Weight (kg) × Duration (hours). Body weight in lbs converted to kg by dividing by 2.2046. MET values sourced directly from the 2011 Compendium. EPOC estimated at 7% of session calories for moderate intensity, 12% for vigorous/circuit training.
⏱ Last reviewed: April 2026
How Many Calories Does Weight Lifting Burn?
Weight lifting is one of the most effective forms of exercise for body composition, but its calorie burn during a session is frequently underestimated. Unlike steady-state cardio, strength training burns calories both during the workout and for up to 48 hours afterward through the EPOC (Excess Post-Exercise Oxygen Consumption) effect — often called the “afterburn effect.”
The MET Formula for Weight Lifting
Calories Burned = MET × Weight (kg) × Duration (hours)
Example: 180 lb (81.6 kg) person doing vigorous lifting for 45 minutes:
Calories = 6.0 × 81.6 × 0.75 = 367 calories
Convert lbs to kg: weight (lbs) ÷ 2.2046 = weight (kg)
Calories = 6.0 × 81.6 × 0.75 = 367 calories
Convert lbs to kg: weight (lbs) ÷ 2.2046 = weight (kg)
Calories Burned by Weight Lifting Intensity
| Exercise Type | MET | 130 lbs / 60 min | 155 lbs / 60 min | 180 lbs / 60 min | 220 lbs / 60 min |
|---|---|---|---|---|---|
| General / Light | 3.5 | 177 | 211 | 245 | 300 |
| Moderate Resistance | 4.0 | 203 | 241 | 280 | 343 |
| Bodybuilding | 5.0 | 253 | 302 | 350 | 428 |
| Vigorous / Powerlifting | 6.0 | 304 | 362 | 420 | 514 |
| Circuit Training | 8.0 | 405 | 483 | 560 | 686 |
| CrossFit / MetCon | 8.5 | 430 | 513 | 595 | 729 |
The EPOC Afterburn Effect
One of the most significant advantages of weight lifting for calorie burning is EPOC — the additional calories burned after the workout ends. After intense strength training, your body requires extra oxygen to restore phosphocreatine stores, re-oxygenate blood, lower body temperature, and repair microtears in muscle tissue. This process burns additional calories for 24-48 hours post-workout.
Research estimates EPOC adds 6-15% more calories on top of the workout session. For a 400-calorie lifting session, that is an additional 24-60 calories burned at rest afterward — modest but meaningful over time. The more intense the workout (heavier weights, shorter rest periods, compound movements), the greater the EPOC effect.
Weight Lifting vs. Cardio: Calorie Comparison
| Activity (155 lb person, 60 min) | During Session | Estimated EPOC | Total |
|---|---|---|---|
| General weight lifting | 211 | +15 | ~226 |
| Vigorous weight lifting | 362 | +36 | ~398 |
| Circuit training | 483 | +58 | ~541 |
| Running 6 mph | 614 | +25 | ~639 |
| Cycling moderate | 372 | +15 | ~387 |
| Swimming | 423 | +20 | ~443 |
💡 Key Insight: While cardio burns more calories during a session, weight lifting builds muscle mass that permanently increases your resting metabolic rate (RMR). Each pound of muscle burns approximately 6-10 extra calories per day at rest. Adding 10 lbs of muscle could burn an extra 60-100 calories daily — equivalent to a 20-35 minute walk, every day, without doing anything extra.
How to Burn More Calories During Weight Training
- Use compound movements — squats, deadlifts, bench press, rows, and overhead press engage multiple muscle groups and burn significantly more calories than isolation exercises
- Reduce rest periods — shorter rest (60-90 seconds) keeps heart rate elevated and increases total calorie burn by 10-20%
- Try supersets or circuits — alternating between muscle groups with no rest can triple calorie burn compared to straight sets
- Progressive overload — gradually increasing weight or volume over time demands more energy and preserves the calorie-burning stimulus
- Add cardio intervals — 30-60 seconds of jumping jacks or kettlebell swings between sets elevates calorie burn dramatically
Frequently Asked Questions
Weight lifting burns approximately 180-560 calories per hour depending on body weight and intensity. A 155-lb person burns about 211 calories per hour with light lifting (MET 3.5), 362 with vigorous lifting (MET 6.0), and 483 with circuit training (MET 8.0). Heavier individuals burn proportionally more calories.
Calories burned = MET × body weight in kg × duration in hours. MET (Metabolic Equivalent of Task) is a standardized intensity measure from the Compendium of Physical Activities. General weight lifting is MET 3.5, vigorous lifting is 6.0, and circuit training is 8.0. Example: 81.6 kg person, MET 6.0, 45 minutes = 6.0 × 81.6 × 0.75 = 367 calories.
Cardio burns more calories during the session. However, weight lifting increases muscle mass which raises resting metabolic rate long-term. Weight lifting also produces a stronger EPOC (afterburn) effect. The combination of both forms of exercise is superior to either alone for fat loss and metabolic health.
For a 155-lb person: light lifting for 30 minutes burns approximately 106 calories, moderate effort burns 121, vigorous lifting burns 181, and circuit training burns 242 calories. For a 200-lb person, these figures are approximately 30% higher.
From the 2011 Compendium of Physical Activities: general weight lifting (light effort) = MET 3.5, resistance training moderate = MET 4.0, bodybuilding = MET 5.0, vigorous weight lifting and powerlifting = MET 6.0, circuit training = MET 8.0, CrossFit/metabolic conditioning = MET 8.5.
Weight lifting does not spot-reduce belly fat, but it contributes to overall fat loss when combined with a caloric deficit. Resistance training builds muscle, increases metabolism, and improves insulin sensitivity. Studies show combining weight lifting with cardio is more effective for reducing visceral belly fat than cardio alone.
Yes. EPOC (Excess Post-Exercise Oxygen Consumption), or the afterburn effect, means your body burns extra calories for 24-48 hours after intense weight training to repair muscle tissue and restore metabolic processes. Studies estimate EPOC adds 6-15% more calories on top of the workout itself.
Approximately 5-8 calories per set of 10 reps with moderate weight for a 150-lb person. 100 total reps (10 sets of 10) would burn roughly 50-80 calories from the active lifting, plus calories burned during rest periods. Total session calories depend on rest periods and your body weight.
MET-based estimates have significant individual variability of 20-30%. Factors like rest time between sets, exercise selection, actual effort, and individual metabolic rate all affect true calorie burn. Heart rate monitors provide more personalized estimates. The MET formula is best used for general guidance and comparative purposes.
Free weights generally burn slightly more calories than machines because they require stabilizer muscle activation. Compound free weight exercises like squats and deadlifts burn significantly more calories than isolation machine exercises because they engage more muscle groups. However, the calorie difference is relatively small — intensity and total volume matter more than equipment type.
Calorie burn is based on body weight and intensity — not sex. For a 130-lb woman: light lifting burns about 177 calories/hour, vigorous lifting burns 304 calories/hour. For a 155-lb woman: light = 211, vigorous = 362 calories/hour. Use the calculator above for your exact weight and intensity.
To maximize calorie burn: prioritize compound movements (squats, deadlifts, bench press, rows), reduce rest periods to 60-90 seconds, use circuit training or supersets, increase training volume progressively, add short cardio bursts between sets, and maintain proper workout intensity throughout the session.
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