How Many Calories Do Sit-Ups Burn? Complete Guide
Learn how many calories sit-ups burn per rep and per minute. Detailed calorie charts by body weight and intensity with MET-based calculations.
Sit-ups burn approximately 3-4 calories per minute for most adults, or about 15-30 calories per 100 sit-ups depending on body weight and intensity. For a 70 kg person, moderate-intensity sit-ups burn around 133 calories per 30 minutes, while light-intensity sit-ups burn about 90 calories in the same time.
Quick Reference Table
Calories burned doing sit-ups at moderate intensity (MET 3.8):
| Duration | 60 kg | 70 kg | 80 kg | 90 kg |
|---|---|---|---|---|
| 5 min | 19 kcal | 22 kcal | 25 kcal | 29 kcal |
| 10 min | 38 kcal | 44 kcal | 51 kcal | 57 kcal |
| 15 min | 57 kcal | 67 kcal | 76 kcal | 86 kcal |
| 20 min | 76 kcal | 89 kcal | 101 kcal | 114 kcal |
| 30 min | 114 kcal | 133 kcal | 152 kcal | 171 kcal |
Calories Per Rep
At a typical pace of 20 sit-ups per minute:
| Reps | 60 kg | 70 kg | 80 kg | 90 kg |
|---|---|---|---|---|
| 10 | 2 kcal | 2 kcal | 3 kcal | 3 kcal |
| 20 | 4 kcal | 4 kcal | 5 kcal | 6 kcal |
| 25 | 5 kcal | 6 kcal | 6 kcal | 7 kcal |
| 50 | 10 kcal | 11 kcal | 13 kcal | 14 kcal |
| 100 | 19 kcal | 22 kcal | 25 kcal | 29 kcal |
| 200 | 38 kcal | 44 kcal | 51 kcal | 57 kcal |
| 300 | 57 kcal | 67 kcal | 76 kcal | 86 kcal |
| 500 | 95 kcal | 111 kcal | 127 kcal | 143 kcal |
How Many Sit-Ups to Burn X Calories
At a moderate pace of 20 sit-ups per minute, a 70 kg person burns approximately 0.22 calories per rep. Use this table to find how many sit-ups you need to hit a specific calorie goal.
| Calorie Goal | 60 kg | 70 kg | 80 kg | 90 kg |
|---|---|---|---|---|
| 25 cal | 132 | 114 | 100 | 88 |
| 50 cal | 263 | 227 | 200 | 175 |
| 100 cal | 526 | 455 | 400 | 350 |
| 200 cal | 1,053 | 909 | 800 | 700 |
| 300 cal | 1,579 | 1,364 | 1,200 | 1,050 |
| 500 cal | 2,632 | 2,273 | 2,000 | 1,750 |
For a fast calorie-goal check based on your own body weight, use the Sit-Up Calorie Calculator.
How Sit-Up Calories Are Calculated
The calculation uses MET (Metabolic Equivalent of Task) values from the Compendium of Physical Activities:
Calories = MET × Weight (kg) × Duration (hours)
MET Values for Sit-Ups
| Intensity | MET Value | Description |
|---|---|---|
| Light | 3.0 | Slow, controlled movements with rest |
| Moderate | 3.8 | Steady rhythm, minimal rest between sets |
Use the Sit-Up Calorie Calculator for precise calculations based on your weight and workout duration.
Factors That Affect Calorie Burn
1. Body Weight
Heavier individuals burn more calories:
| Weight | Calories/Min (Moderate) |
|---|---|
| 50 kg | 3.2 kcal |
| 60 kg | 3.8 kcal |
| 70 kg | 4.4 kcal |
| 80 kg | 5.1 kcal |
| 90 kg | 5.7 kcal |
2. Intensity Level
The difference between light and moderate intensity:
- Light (MET 3.0): ~27% fewer calories
- Moderate (MET 3.8): baseline for most calculations
3. Exercise Pace
Faster repetitions increase calorie burn slightly, but controlled movements engage muscles more effectively.
4. Exercise Variation
Different sit-up variations have similar calorie burns:
- Traditional sit-ups
- Crunches
- Bicycle crunches
- Russian twists
- Reverse crunches
Sit-Ups vs Other Exercises
Calorie burn per 30 minutes for a 70 kg person:
| Exercise | Calories |
|---|---|
| Running (8 km/h) | 280 kcal |
| Jumping jacks | 210 kcal |
| Burpees | 280 kcal |
| Push-ups | 167 kcal |
| Sit-ups (moderate) | 133 kcal |
| Planks | 105 kcal |
Sit-ups burn fewer calories than full-body exercises because they primarily target the abdominal muscles rather than engaging multiple large muscle groups.
Why Sit-Ups Burn Relatively Few Calories
Sit-ups are an isolation exercise that primarily works the rectus abdominis and hip flexors. Unlike compound movements that engage multiple large muscle groups simultaneously, sit-ups have limited calorie-burning potential because:
- Limited muscle mass involved - Only core muscles are actively contracting
- Short range of motion - The movement distance is small
- No significant cardiovascular demand - Heart rate increase is minimal
- Bodyweight-only resistance - No external load to increase energy demand
Maximizing Calorie Burn During Core Workouts
To burn more calories while training your core:
- Combine with cardio - Add jumping jacks or mountain climbers between sets
- Use circuit training - Move quickly between different exercises
- Increase intensity - Minimize rest periods
- Add variations - Include bicycle crunches, leg raises, and planks
- Extend duration - Longer workouts burn more total calories
Common Questions
Do sit-ups burn belly fat?
Sit-ups strengthen abdominal muscles but don't specifically target belly fat. Fat loss occurs throughout the body when you maintain a caloric deficit. Sit-ups help build the muscles that will be visible once body fat is reduced.
How many sit-ups to lose 1 kg?
To burn the approximately 7,700 calories needed to lose 1 kg of fat through sit-ups alone, a 70 kg person would need to do about 58,000 sit-ups (at 0.13 calories per sit-up). This highlights why sit-ups should be combined with cardio and diet for weight loss.
Calculate Your Exact Burn
For personalized calorie calculations based on your weight and workout duration, use the Sit-Up Calorie Calculator.
Related Calculators
- Push-Up Calorie Calculator - Calculate push-up calorie burn
- Burpee Calorie Calculator - Full-body exercise calories
- Jumping Jack Calorie Calculator - Cardio calisthenics calories
Related Guides
- 100 Sit-Ups Calories - Detailed breakdown for 100 reps
- Sit-Ups vs Crunches Calories - Which burns more?
- Do Sit-Ups Burn Belly Fat? - The truth about spot reduction