Plank Calorie Formula: How Many Calories Do Planks Burn?
Learn the exact formula for calculating plank calories burned. Covers MET values for all plank variations, body weight tables, and the science behind isometric calorie burn.
The plank calorie formula is: Calories = MET × Weight (kg) × Time (hours). A standard forearm plank uses a MET value of 3.5, burning approximately 3.5–5.3 calories per minute depending on your body weight.
Use our Plank Calorie Calculator for an instant personalized result.
The Standard Plank Calorie Formula
The most accurate way to estimate plank calories uses the Metabolic Equivalent of Task (MET) method:
Calories = MET × Weight (kg) × Time (hours)
For a standard forearm plank (MET 3.5):
Calories = 3.5 × Weight_kg × (Minutes ÷ 60)
Example: 70 kg person holding a 3-minute plank
3.5 × 70 × (3 ÷ 60) = 12.25 calories
MET Values for Different Plank Variations
Different plank types have different metabolic demands. Here are the MET values used in this calculator:
| Plank Variation | MET Value | Cal/min (70 kg) | Effort Level |
|---|---|---|---|
| High Plank (push-up position) | 3.0 | 3.5 | Light–Moderate |
| Standard Forearm Plank | 3.5 | 4.1 | Moderate |
| Plank with Variations | 4.5 | 5.3 | Moderate–Vigorous |
Plank variations include shoulder taps, alternating leg raises, hip dips, and plank to downward dog — all of which add dynamic movement, increasing oxygen consumption and calorie burn.
For context, the Compendium of Physical Activities (Ainsworth et al., 2011) lists general calisthenics at 3.5 MET (moderate effort, code 02010) and vigorous calisthenics at 8.0 MET (code 02050). Planks sit at the lower-moderate end of this range due to their isometric nature.
Calories Burned Planking by Body Weight
Using MET 3.5 (standard forearm plank):
| Body Weight | Cal/min | 1 min | 2 min | 5 min | 10 min |
|---|---|---|---|---|---|
| 55 kg (121 lb) | 3.2 | 3.2 cal | 6.4 cal | 16.0 cal | 32.0 cal |
| 60 kg (132 lb) | 3.5 | 3.5 cal | 7.0 cal | 17.5 cal | 35.0 cal |
| 65 kg (143 lb) | 3.8 | 3.8 cal | 7.6 cal | 18.9 cal | 37.9 cal |
| 70 kg (154 lb) | 4.1 | 4.1 cal | 8.2 cal | 20.4 cal | 40.8 cal |
| 75 kg (165 lb) | 4.4 | 4.4 cal | 8.8 cal | 21.9 cal | 43.8 cal |
| 80 kg (176 lb) | 4.7 | 4.7 cal | 9.3 cal | 23.3 cal | 46.7 cal |
| 90 kg (198 lb) | 5.3 | 5.3 cal | 10.5 cal | 26.3 cal | 52.5 cal |
| 100 kg (220 lb) | 5.8 | 5.8 cal | 11.7 cal | 29.2 cal | 58.3 cal |
Why Planks Burn Fewer Calories Than You Expect
When people first see plank calorie numbers — 4 calories per minute — they're often surprised by how low they are compared to burpees (9 calories/min) or running (10+ calories/min). The reason comes down to one word: isometric.
Isometric contractions — where your muscles generate force without movement — use less oxygen than dynamic movements. Your body burns more calories when it has to move a load through a range of motion (like in a squat or push-up) because it needs to generate more mechanical work.
During a plank, your muscles are working hard to resist gravity and maintain your position, but they're not doing the cyclical push-pull that spikes oxygen consumption. This results in a relatively low MET value of 3.5 compared to exercises like:
- Burpees: MET 8.0
- Jumping jacks: MET 7.5
- Running (8 km/h): MET 8.5
- Push-ups: MET ~3.8 (moderate effort)
This doesn't mean planks aren't valuable — they're essential for core development — but for calorie burning, you'll get more bang for your buck from dynamic exercises.
The Reverse Formula: How Long to Burn X Calories with Planks?
To calculate how long you need to plank to burn a target number of calories:
Time (minutes) = (Target Calories ÷ MET ÷ Weight_kg) × 60
How long to burn 50 calories planking?
| Body Weight | Time Needed (Standard Plank) |
|---|---|
| 60 kg | 14 min 17 sec |
| 70 kg | 12 min 15 sec |
| 80 kg | 10 min 43 sec |
| 90 kg | 9 min 31 sec |
As you can see, planks alone are a slow calorie-burning method. To create a meaningful energy deficit, pair planks with cardiovascular exercise.
Plank Calorie Formula vs. Other Core Exercises
| Exercise | MET | Cal/min (70 kg) | 5-min calories |
|---|---|---|---|
| Plank (standard) | 3.5 | 4.1 | 20 cal |
| Sit-ups (moderate) | 3.5 | 4.1 | 20 cal |
| Crunches (light) | 2.8 | 3.3 | 16 cal |
| Leg raises | ~3.5 | 4.1 | 20 cal |
| Mountain climbers | ~8.0 | 9.3 | 47 cal |
| Burpees | 8.0 | 9.3 | 47 cal |
Mountain climbers burn more than twice as many calories as a standard plank in the same time period, largely because they involve continuous movement of the legs (dynamic component layered on top of the plank hold).
Factors That Affect Plank Calorie Accuracy
The MET formula provides a solid estimate, but these factors cause individual variation:
- Muscle mass: Greater muscle mass elevates resting metabolic rate, slightly increasing calorie burn even during isometric holds
- Core strength: A beginner working at maximum capacity burns more calories than an advanced plank holder doing the same time, because the beginner's muscles are less efficient
- Breathing pattern: Controlled breathing keeps oxygen consumption lower; if you're struggling and gasping, your burn is higher
- Plank form: Sagging hips or poor alignment reduce the muscular demand and therefore the calorie burn
- Temperature: Working out in heat slightly elevates calorie burn due to the thermoregulatory response
A conservative accuracy estimate for the MET formula applied to planks is ±20–30%.
Plank Calorie Targets: Making Planks Count for Weight Loss
While planks aren't the most efficient calorie-burning exercise, they play an important supporting role:
Daily plank practice (5 minutes)
- 70 kg person: ~20 calories per session
- Weekly: ~140 calories
- Monthly: ~600 calories
This is roughly equivalent to one chocolate biscuit per day — modest by itself, but every calorie counts in a structured fat-loss program.
The more effective strategy: Use planks for core strength and injury prevention, and pair them with higher-intensity exercises like running, cycling, or HIIT workouts for calorie burn.
Quick Reference: Plank Calorie Formula Summary
| Goal | Formula |
|---|---|
| Calories from plank hold | MET × Weight (kg) × (Minutes ÷ 60) |
| Standard plank | 3.5 × kg × (min ÷ 60) |
| Plank with variations | 4.5 × kg × (min ÷ 60) |
| Time needed for X calories | (Calories ÷ MET ÷ kg) × 60 |
Related Guides
- How Many Calories Does a 1-Minute Plank Burn? — The most popular benchmark
- Calories Burned in a 5-Minute Plank Workout — Extended hold analysis
- Do Planks Burn Belly Fat? — Honest answer with calorie data
- Plank Calorie Calculator — Instant personalized result
- Burpee Calorie Calculator — Compare with a high-intensity alternative
- Push-Up Calorie Calculator — Dynamic upper body comparison