CPR BPM: Correct Compression Rate for Effective CPR

The correct CPR chest-compression rate is 100–120 compressions per minute for adults, children, and infants. “CPR BPM” is a useful memory phrase, but rhythm alone is not enough: effective CPR also requires appropriate depth, full chest recoil, minimal interruptions, and rapid use of an automated external defibrillator (AED) when available.

If someone is unresponsive and not breathing normally or is only gasping, call your local emergency number and follow the dispatcher’s instructions. This guide supports CPR education; it does not replace hands-on training or directions given during an emergency.

What Is the Correct CPR BPM?

The recommended CPR pace is 100–120 chest compressions per minute. The 2025 American Heart Association (AHA) guidelines retain this range because compressions that are substantially slower or faster can reduce CPR quality.

Is CPR measured in BPM or compressions per minute?

BPM means beats per minute in music or heart-rate measurement. During CPR, the technically accurate unit is compressions per minute because the rescuer is pressing the chest, not following the patient’s heartbeat.

A metronome or song at 100–120 beats per minute can provide a pacing cue. In that one-to-one pattern, one beat represents one compression.

Why is 100–120 compressions per minute recommended?

Chest compressions generate limited blood flow to the brain and heart during cardiac arrest. According to the AHA’s high-quality CPR guidance, rescuers should combine a rate of 100–120 per minute with adequate depth, complete recoil, few interruptions, and no excessive ventilation.

Going faster is not automatically better. The AHA’s adult evidence review reports better survival in observational studies at 100–119 per minute than at lower or higher rates. Speed must support effective technique.

How Fast Is 100–120 Compressions per Minute?

At 100 compressions per minute, each compression begins every 0.60 seconds. At 120 per minute, the interval is 0.50 seconds. The permitted range is therefore quick but controlled—not a frantic series of shallow pushes.

What do 100 and 120 CPR BPM feel like?

At 100 CPM, you perform about five compressions every three seconds. At 120 CPM, you perform two compressions each second. If you want to understand the timing relationship, the standard BPM formula and conversions explain why increasing the rate shortens the interval between pushes.

Compression rate	Time between compression starts	Time for 30 compressions
100 per minute	0.60 seconds	18 seconds
110 per minute	about 0.55 seconds	about 16.4 seconds
120 per minute	0.50 seconds	15 seconds

How long should 30 compressions take?

Thirty compressions should take approximately 15–18 seconds when the rescuer stays within the recommended range. The calculation is 30 ÷ rate × 60. At 100 CPM, 30 ÷ 100 × 60 = 18 seconds; at 120 CPM, the result is 15 seconds.

This timing is a practice check, not a reason to watch a clock during an emergency. Prioritize dispatcher guidance, technique, and the AED.

How Can You Keep the Correct CPR Rhythm?

Use a CPR feedback device or metronome when training. In an actual emergency, start promptly and use a familiar 100–120 BPM rhythm only as a memory aid if it helps you remain steady.

Use a metronome or feedback device

A metronome can teach consistent pacing, while a CPR feedback device may also assess rate, depth, or recoil. Learning how metronomes keep a steady pulse can help during practice, but an audio click cannot measure depth or hand position.

Use a song only as a pacing cue

The AHA maintains training music at 100–120 BPM because familiar rhythm can make the target rate easier to remember. A track from a verified 100 BPM song list or 120 BPM music reference may support practice.

Do not stop compressions to find a song, open an app, or adjust audio. A song’s beat also cannot tell you whether the chest is recoiling fully or whether your compressions are deep enough.

Count without losing technique

Count aloud from 1 to 30 if you are performing conventional CPR in 30:2 cycles. Keep your shoulders above your hands, maintain a controlled vertical push, and release pressure after every compression without removing your hands from the chest. If another trained rescuer is present, switching compressors about every two minutes can reduce fatigue.

Is CPR BPM the Same for Adults, Children, and Infants?

The target remains 100–120 compressions per minute across adults, children, and infants, but compression depth and technique change with body size and age. Newborn resuscitation immediately after birth is a specialized procedure and should not be treated as standard infant CPR.

Person	Compression rate	Recommended depth	Key distinction
Adult	100–120/min	At least 5 cm; avoid more than 6 cm	Two hands in the center of the chest for most adults
Child	100–120/min	At least one-third of chest depth, about 5 cm	One or two hands, depending on size
Infant	100–120/min	At least one-third of chest depth, about 4 cm	Current AHA guidance uses the heel of one hand or two-thumb encircling technique

The table summarizes current AHA guidance. Exact methods vary by rescuer number, training level, and circumstances, so formal pediatric CPR training is especially valuable.

Compression and ventilation ratios

For an adult without an advanced airway, a trained rescuer generally uses 30 compressions followed by two breaths. In pediatric CPR, one rescuer generally uses 30:2, while two trained rescuers use 15:2 for a prepubertal child or infant. Follow current course guidance and the emergency dispatcher rather than relying on memory when help is available.

Does Correct BPM Guarantee High-Quality CPR?

No. Correct pacing solves only the rate component. Shallow compressions, leaning on the chest, frequent pauses, poor hand placement, or excessive ventilation can still make correctly paced CPR ineffective.

Depth, recoil, and interruptions

For an average adult, compress at least 5 cm while avoiding depths greater than 6 cm. Let the chest return fully after each push because incomplete recoil can reduce blood return to the heart. Keep pauses as short as possible, including when breaths are given or an AED is being prepared.

Myth: following a 110 BPM song guarantees good CPR. Reality: the song confirms only approximate timing. It cannot confirm compression depth, recoil, chest position, ventilation, or whether the person actually needs CPR.

Why compressing too fast can reduce quality

Excessive speed often produces shallow pushes and incomplete recoil, especially as the rescuer tires. A correct metronome rate should stabilize technique, not pressure the rescuer to sacrifice depth for pace.

What Should You Do During a Suspected Cardiac Arrest?

Check that the scene is safe, assess responsiveness and breathing, activate emergency services, begin CPR, and use an AED as soon as it is available. If an emergency dispatcher gives instructions, follow them.

1. Tap the person and shout. Look for normal breathing; occasional gasps are not normal breathing.
2. Call your local emergency number or direct someone else to call, and ask another person to retrieve an AED.
3. For a teen or adult who suddenly collapses, an untrained bystander can begin Hands-Only CPR: push hard and fast in the center of the chest.
4. Use the AED immediately when it arrives, follow its spoken prompts, and resume compressions when instructed.
5. Continue until the person shows signs of life, trained responders take over, the scene becomes unsafe, or you are physically unable to continue.

CPR compression rhythm is different from the person’s pulse. The difference between pulse and beat matters here: you do not adjust compression speed to match a suspected heart rate. Maintain 100–120 compressions per minute unless emergency professionals instruct otherwise.

Frequently Asked Questions

Is CPR performed at 100 or 120 BPM?

Both values are within the recommended range. Aim for 100–120 chest compressions per minute rather than one exact number.

How many chest compressions should be given per minute?

Adults, children, and infants generally receive 100–120 compressions per minute. Depth and hand technique vary by age and size.

Can I use a 100–120 BPM song to pace CPR?

Yes, a familiar song in that range can act as a memory cue. Do not delay CPR to find music, and remember that a song cannot assess depth, recoil, or hand placement.

Is the CPR compression rate different for a child or infant?

No, the target rate is still 100–120 per minute. Pediatric depth, hand technique, ventilation needs, and rescuer ratios differ from adult CPR.

What happens if chest compressions are too fast?

Very fast compressions may become too shallow and may prevent full chest recoil. Both problems can reduce the blood flow produced by CPR.

Is CPR BPM the same as the patient’s heart rate?

No. CPR rate describes how often the rescuer compresses the chest, while heart-rate BPM describes cardiac contractions. Do not try to match compressions to the patient’s pulse.