One hundred push-ups burn roughly 30–50 calories, while 100 jumping jacks burn about 15–25 calories, depending on your body weight and intensity. An hour of weight lifting generally burns between 200–450 calories.
Because the calorie burn for strength and bodyweight exercises is lower than most people hope, maintaining a calorie deficit relies heavily on tracking what you eat. Diat makes this faster by estimating your food's macros from a single photo. Free to download with premium via subscription!
Key Takeaways
- A push-up burns under one calorie. Depending on your weight and pace, a single push-up burns roughly 0.3 to 0.5 calories.
- Cardio requires duration. To burn 100 calories doing jumping jacks, you would need to complete between 360 and 600 reps.
- Lifting builds metabolism, not instant deficits. Weight lifting burns fewer calories per minute than steady-state cardio, but building muscle slightly raises your resting metabolic rate.
- The deficit is made in the kitchen. Because exercise yields low immediate calorie burns, tracking food intake accurately is the most reliable way to manage weight.
- Honest accuracy note: Diat uses AI to estimate food calories from a photo. While not as precise as manual database entry to the exact gram, it builds the daily tracking habit required for long-term consistency.
How Exercise Calories Are Calculated (The MET Formula)
Every physical activity requires energy, which sports scientists measure using a Metabolic Equivalent of Task (MET) value. Sitting still is 1 MET.
The formula to determine calories burned per minute is:
Calories per minute = MET × 3.5 × body weight (kg) ÷ 200
Here are the established MET values from the Compendium of Physical Activities for these specific movements:
Activity | MET Value |
|---|---|
Push-ups, moderate | 3.8 |
Push-ups, vigorous / fast | 8.0 |
Jumping jacks, moderate | 8.0 |
Weight lifting, light to moderate | 3.5 |
Weight lifting, vigorous (heavy, short rests) | 6.0 |
Circuit training, minimal rest | 8.0 |
Factors That Affect Your Calorie Burn
The exact number of calories burned doing push-ups or lifting weights varies based on four primary factors:
- Body Weight: The heavier you are, the more energy it takes to move your body against gravity.
- Intensity and Pace: Performing exercises vigorously with shorter rest periods elevates your heart rate and burns more calories per minute than moderate pacing.
- Sex: At the same intensity, males generally burn more calories than females due to typically having lower body fat and higher muscle mass.
- Age: As we age, muscle mass naturally decreases while body fat increases, which can slightly lower the amount of calories burned during exercise.
Safety Note: Any focus on calorie deficits or rapid weight loss should be approached carefully. If you have a history of disordered eating, are pregnant, or have a medical condition, consult a healthcare provider or registered dietitian before starting a calorie-restriction plan or fasting protocol. For eating disorder support resources, please reach out to a local healthcare professional.
Deep Dive: Calories Burned by Push-Ups
Push-ups primarily work your chest, shoulders, triceps, and core. They are an exceptional strength-building movement, but their caloric yield is low.
At a moderate pace (about 20 push-ups per minute), 100 push-ups take roughly 5 minutes.
Body weight | Calories per push-up | 100 push-ups (moderate, 5 min) | 100 push-ups (fast, 3 min) |
|---|---|---|---|
60 kg / 132 lb | ~0.3 | ~20 kcal | ~25 kcal |
70 kg / 154 lb | ~0.35 | ~23 kcal | ~29 kcal |
80 kg / 176 lb | ~0.4 | ~27 kcal | ~34 kcal |
90 kg / 198 lb | ~0.45 | ~30 kcal | ~38 kcal |
100 kg / 220 lb | ~0.5 | ~33 kcal | ~42 kcal |
Real-world numbers run slightly higher than the strict formula because resting between sets still costs energy, and your heart rate stays elevated afterward. This is why 30–50 calories is an honest estimate for 100 reps across multiple sets. A single push-up is well under one calorie.
Does the Type of Push-Up Matter?
Yes. Modifying the exercise alters the intensity and the load on your muscles.
- Knee Push-ups / Incline Push-ups: Lower intensity. They support less of your total body weight, resulting in a lower caloric burn per rep.
- Decline / Diamond / Plyometric Push-ups: Higher intensity. These variations require greater explosive power and engage more stabilizing muscles, pushing the MET value closer to 8.0.
Deep Dive: Calories Burned by Jumping Jacks
Because jumping jacks require continuous, whole-body cardiovascular effort, they are performed much faster than push-ups (typically 50–60 per minute). One hundred jumping jacks take just under two minutes.
Body weight | 100 jumping jacks (~2 min) | Jumping jacks to burn 100 kcal |
|---|---|---|
60 kg / 132 lb | ~17 kcal | ~600 |
70 kg / 154 lb | ~20 kcal | ~500 |
80 kg / 176 lb | ~22 kcal | ~450 |
90 kg / 198 lb | ~25 kcal | ~400 |
100 kg / 220 lb | ~28 kcal | ~360 |
To burn 100 calories with jumping jacks alone, you would need to sustain the movement for 8 to 12 minutes without stopping. As a warm-up, they are excellent for elevating your heart rate. As a standalone fat-loss tool, the caloric impact is a rounding error.
Deep Dive: Calories Burned by Weight Lifting
Weight lifting burns fewer calories per hour than cardiovascular exercise because the majority of your time is spent resting between sets. This is not a flaw — the purpose of lifting weights is to build and retain muscle, not simply burn calories.
Based on data published by Harvard Medical School, lifting breaks down like this:
Body weight | Light/moderate (1 hr) | Heavy, short rests (1 hr) | Circuit style (1 hr) |
|---|---|---|---|
60 kg / 132 lb | ~220 kcal | ~380 kcal | ~500 kcal |
70 kg / 154 lb | ~260 kcal | ~440 kcal | ~590 kcal |
80 kg / 176 lb | ~290 kcal | ~500 kcal | ~670 kcal |
90 kg / 198 lb | ~330 kcal | ~570 kcal | ~760 kcal |
A typical 45-to-60-minute session featuring 4 to 6 exercises with normal rest periods lands around 200–350 kcal for most people. Fitness trackers and smartwatches routinely report double that amount because heart-rate-based algorithms are notoriously inaccurate for anaerobic resistance training.
The Afterburn and Metabolism Effect
While the immediate calorie burn is modest, weight lifting has a crucial longer-term effect. Adding muscle slightly raises your resting metabolism (roughly 6–10 additional calories burned per day per kilogram of muscle). More importantly, lifting weights while in a calorie deficit ensures that weight loss comes from body fat rather than lean muscle tissue.
Interactive Calculator: Your Personal Calorie Burn Estimate
Use the calculator below to compare how many calories you burn during these activities based on your exact body weight and workout duration. You can also use Diat calculator!
What This Means for a Calorie Deficit
The standard target for losing roughly 0.5 kg (about 1 lb) of fat a week is a daily deficit of 500 calories.
To achieve a 500-calorie deficit strictly through exercise, you would need to do one of the following every single day:
- Perform 1,500 push-ups, or
- Perform 2,500 jumping jacks, or
- Lift weights vigorously for 1.5 to 2 hours, or
- Skip eating one large latte and a muffin.
Exercise is incredibly beneficial for cardiovascular health, strength, mood, and appetite regulation. However, attempting to out-train a high-calorie diet usually leads to burnout. For a deeper look at building sustainable habits, read our guide on how to safely track macros for weight loss.
Why Tracking Food Beats Tracking Workouts (An Honest Note on Limitations)
The deficit is made in the kitchen, which is why tracking food accurately matters significantly more than perfectly tracking your workouts.
Diat helps you manage the food side of the equation. It uses AI to estimate calories and macronutrients directly from a photo of your meal.
Honest limitations of AI tracking: AI estimates are educated approximations based on visual volume. They are highly useful for building logging habits and identifying broad nutritional patterns, but they are not built for precise, to-the-gram calorie budgeting. Photo-based tracking struggles with hidden fats, cooking oils, and mixed dishes.
However, approximate tracking is vastly superior to the alternative: giving up because searching a manual database takes too long. Habit and consistency are what produce results over time. Diat's photo logging is designed for the moments when you don't have time to search—snap, confirm, and move on.
Free to download with premium via subscription!
How to Log Your First Meal in Diat
Diat logs a meal from a photo in seconds, so the side of the energy equation that actually influences weight loss gets recorded seamlessly. Here is how to track your meals:
- Open the Diat app and tap Log Meal.
- Point your camera at your plate and snap a photo.
- Review the AI-estimated breakdown of calories, protein, carbs, and fats.
- If the AI estimate looks off — which can happen with complex restaurant meals — you can manually edit the portions or ingredients. Getting the log close is more useful than not logging at all.
