How Many Calories Do You Burn Doing CPR? | Action Guide

Calorie Burn While Performing CPR: Realistic Ranges

Chest compressions are full-body work. Your arms drive the motion, but your trunk and legs do the heavy lifting. That’s why the energy cost sits in the moderate-to-vigorous zone for many adults. Researchers often estimate exercise energy using MET values. A small hands-only CPR study reported an average of about 5.7 METs during an 8-minute bout, with participants expending roughly 33 calories across that window. That pattern lines up with what many rescuers feel during real events—hard effort that ramps quickly.

How The Math Works

Calories per minute are commonly estimated with a standard formula: kcal/min = MET × 3.5 × body weight (kg) ÷ 200. Plug in a mid-range CPR intensity of 5.7 METs and you get about 7 kcal/min at 70 kg, near 8 kcal/min at 80 kg, and near 10 kcal/min at 100 kg. Switch the compressor every 2 minutes to protect quality; rescuer fatigue shows up fast in depth and rate.

Quick Table: Calories During CPR By Weight

This table uses a mid-range intensity (5.7 METs) and shows totals for 5 and 10 minutes of continuous compressions. Real-world numbers vary with technique, rate, and rotation timing.

Body Weight	5-Minute Total	10-Minute Total
50 kg (110 lb)	~25 kcal	~50 kcal
60 kg (132 lb)	~30 kcal	~60 kcal
70 kg (154 lb)	~35 kcal	~70 kcal
80 kg (176 lb)	~40 kcal	~80 kcal
90 kg (198 lb)	~45 kcal	~90 kcal
100 kg (220 lb)	~50 kcal	~100 kcal
110 kg (242 lb)	~55 kcal	~110 kcal
120 kg (265 lb)	~60 kcal	~120 kcal

Your daily expenditure still sets the backdrop; understanding calories burned every day helps you place a short CPR stint in context.

What Shapes Your CPR Energy Cost

Three things move the needle most: body size, compression quality, and set length. Larger bodies push more mass, which nudges calories higher at the same pace. High-quality compressions demand a steady depth and rate, so effort stays up. Longer, uninterrupted sets keep your VO₂ elevated, which bumps the minute-by-minute burn.

Body Size And Stance

Using your hips over the sternum lets gravity work for you. That helps smaller rescuers meet depth targets and saves the arms from early burnout. Tall rescuers often feel the load in the triceps and back first; a wider base and stacked shoulders keep force straight down.

Compression Quality Over Speed

Staying near 100–120 per minute with full recoil is the goal. When fatigue creeps in, depth and recoil suffer before your brain notices. That’s why guideline documents recommend switching the compressor every 2 minutes during adult resuscitation. You protect depth and keep the hemodynamic benefit going.

Set Length And Rotation

Short bursts feel manageable, but most people fade rapidly after the first minute. Teams that rotate on a timer deliver steadier compressions and spread the workload. It also makes calorie burn more predictable per person, since time on the chest is measured in clean 2-minute blocks.

Estimating Your Calories From A Real Event

Start with time on the chest. Count only the minutes you were compressing. Then match body weight to a reasonable intensity range. A mid-range estimate uses 5–6 METs; tougher sets can push closer to 6.5–7 METs. Multiply calories per minute by minutes of work, and you have a defensible estimate for your log or tracker.

Worked Examples

Scenario 1: 70 kg rescuer, two 2-minute turns (4 minutes total) at ~5.7 METs. Calories per minute ≈ 7. Total ≈ 28 kcal.

Scenario 2: 90 kg rescuer, a single 3-minute stint at a strong clip (~6.5 METs). Calories per minute ≈ 10. Total ≈ 30 kcal.

Scenario 3: 60 kg rescuer, three 2-minute turns (6 minutes total) at steady form (~5.0–5.7 METs). Calories per minute ≈ 6–7. Total ≈ 36–42 kcal.

Why Use METs For CPR?

Direct calorimetry in real arrests isn’t practical, so researchers lean on oxygen-use measurements and standardized MET tables to estimate energy. That approach is widely used in sports science and clinical research. It won’t match every individual, but it’s a reliable way to get in the right ballpark.

Evidence Snapshot

A small hands-only CPR trial measured about 33 calories expended over 8 minutes in trained adults, and pegged intensity near the brisk-walk range (around 5–6 METs). A separate randomized manikin study tracked exercise intensity across different compression-to-ventilation patterns and showed rising exertion with continuous compressions, along with a drop in compression quality when rescuers pushed past a few minutes.

Guideline Notes You Can Use

Rotate the compressor every 2 minutes. That protects depth and recoil and keeps perfusion targets realistic. You’ll also spread energy cost across rescuers so no single person redlines early. If you’re solo, take short breaks only to deliver breaths with a barrier device or to use an AED.

Calorie Ranges By Intensity Level

These numbers show how calories per minute change with intensity at 70 kg body weight. Pick the line that matches how hard you worked.

Intensity (MET)	Calories/Minute	10-Minute Total
5.0 MET	~6.1 kcal	~61 kcal
5.7 MET	~7.0 kcal	~70 kcal
6.5 MET	~8.0 kcal	~80 kcal

What About Ventilations And Devices?

Bag-mask ventilations add effort, but the compression work dominates. Active devices can change muscle load patterns, yet the goal stays the same: consistent depth, full recoil, minimal pauses. When more hands are available, assign roles and rotate on a two-minute clock.

Safety And Form Come First

Plant your knees close to the chest or stand beside the stretcher with feet set. Lock your elbows, stack your shoulders over your hands, and let your hips drive the compression. Keep your back neutral. If pain shows up in the wrists or back, ask for a switch. Gloves and a barrier device protect both rescuer and patient.

Where This Fits In Your Day

A few minutes of compressions won’t overhaul your energy balance. It’s a short, intense spike on top of your baseline movement, meals, and sleep. A solid fitness base helps you deliver better compressions when it counts, but even trained responders feel the burn during a real code.

Trusted References For Methods

Guideline documents explain why compressor rotation matters and how fatigue degrades depth. You can read the CPR quality update from the American Heart Association for details on switching every 2 minutes and minimizing pauses (AHA CPR quality update). For the math behind energy estimates, see how standard MET values are used to convert intensity to calories (Compendium of Physical Activities).

Put It All Together

Count the minutes you were on the chest, pick a reasonable intensity range, and run the simple formula. Most adults land near 5–8 calories per minute during steady compressions, with totals scaling by weight and time. If you worked in a team, log only your turns on the chest.

Want a broader refresher on movement’s upsides? Try our benefits of exercise.