Hey there. If you’ve ever found yourself counting your newborn’s breaths at 3AM or wondering if their tiny hands feel too cold — you’re not alone. Every new parent does this.
The truth is, newborn bodies work very differently from ours. Their heart beats faster, their breathing looks irregular, and their temperature can drop quickly. None of this means something is wrong. But knowing the numbers — the actual normal ranges — is one of the fastest ways to swap “new parent panic” for real peace of mind.
This guide covers everything you need to know about normal newborn vitals, based on guidelines from the American Academy of Pediatrics (AAP) and the World Health Organization (WHO).
Table of Contents
Why Newborn Vitals Are Different From Older Kids and Adults
Your baby just spent nine months in a warm, fluid-filled space. Now their lungs, heart, and temperature system are all adjusting to the outside world — sometimes in ways that look alarming but are completely expected.
The ranges below are what pediatricians consider normal for a healthy, full-term baby in the first weeks of life. Keep these handy. Many parents screenshot them or bookmark this page for quick reference at night.
1. Newborn Heart Rate — What’s Normal
A newborn’s heart is small and beats fast to keep up with rapid growth and development. This is completely normal — their hearts simply have to work harder than ours.
Normal Heart Rate Ranges
| Activity State | Heart Rate (BPM) |
|---|---|
| Resting / Awake | 120 – 160 BPM |
| Crying / Active | 160 – 190 BPM |
| Deep Sleep | 80 – 120 BPM |
The typical resting heart rate for a calm, awake newborn is 120 to 160 beats per minute. That’s about twice as fast as a healthy adult.
When to Call Your Pediatrician
- Heart rate consistently above 190 BPM at rest — may signal fever, dehydration, or a heart issue
- Heart rate below 100 BPM when your baby is not in deep sleep — may indicate low oxygen levels
- Any rate outside normal ranges that lasts more than a few minutes
When in doubt, call your pediatrician. That’s exactly what they’re there for.
2. Newborn Breathing Rate — The One That Worries Parents Most
Newborn breathing is the number one thing that sends parents to Google at 3AM. It looks fast, sounds noisy, and sometimes seems to stop completely. Most of the time — it’s fine.
Normal Breathing Rate
A healthy, full-term newborn breathes 30 to 60 times per minute at rest. To count, watch the belly or chest rise and fall for a full 60 seconds.
The rate goes up after crying, feeding, or during active sleep. That’s normal. It should come back down once your baby settles.
What Is Periodic Breathing — And Why It Looks Scary
Periodic breathing is when your baby takes several quick breaths, then pauses for 5 to 10 seconds, then breathes again. It looks alarming. It’s actually very common.
This happens because the part of the brain that controls breathing is still maturing. Most babies outgrow it by 1 to 3 months. As long as your baby stays pink and resumes breathing on their own — this is normal.
For a deeper look at what’s normal vs what’s not with newborn breathing, our newborn breathing guide walks through every sound and sign in detail.
Signs of Breathing Problems — Act on These
These are not normal and need immediate attention:
- Nostrils flaring wide with every breath
- Chest retractions — skin pulling in between the ribs or at the base of the throat with each breath
- Grunting with almost every breath (not just after feeds)
- Breathing rate consistently above 60 while your baby is calm and resting
- Blue or pale color around the lips, tongue, or face
- Pauses in breathing longer than 15 to 20 seconds
If you see any of these — call 911 or go to the ER. Do not wait.
3. Newborn Temperature — Harder to Regulate Than You Think
Newborns cannot regulate their body temperature the way older babies and adults can. They lose heat quickly through their head and skin, and they cannot shiver to warm themselves up.
Normal Temperature Range
The most common way to check temperature at home is under the arm (axillary method).
| Method | Normal Range |
|---|---|
| Underarm (Axillary) | 97.7°F – 99.3°F (36.5°C – 37.4°C) |
| Rectal | 98.6°F – 100.3°F (37°C – 37.9°C) |
When Temperature Is an Emergency
- Above 100.4°F (38°C) rectally — this is a fever in a newborn and needs immediate medical attention. Do not wait for morning. Call your pediatrician or go to the ER now.
- Below 97.7°F — hypothermia, which can be a sign of infection in newborns
How to Keep Your Baby Warm
- Skin-to-skin contact (also called Kangaroo Care) — your body heat regulates their temperature naturally
- A fitted hat in the first days — babies lose a lot of heat through their head
- A snug swaddle — keeps warmth in without overheating
- Keep the room between 68 and 72°F — not too hot, not too cold
4. Oxygen Saturation (SpO2) — What It Means
Oxygen saturation measures how much oxygen your baby’s blood is carrying. Hospitals check this routinely with a small sensor on the baby’s hand or foot.
What’s Normal
By 10 minutes after birth, a healthy newborn should have an SpO2 of 90% or higher. Most healthy babies reach 95% or above within the first hour.
When to Worry
Sustained SpO2 below 90% is a red flag for heart or lung issues and needs immediate medical evaluation. This is one of the reasons pediatricians recommend pulse oximetry screening for all newborns before leaving the hospital.
5. Blood Pressure — What the Hospital Checks
Blood pressure is not something most parents check at home, but it’s monitored closely in the hospital, especially if your baby seems lethargic or is feeding poorly.
Normal Blood Pressure for a Newborn
| Measurement | Normal Range |
|---|---|
| Systolic | 60 – 80 mmHg |
| Diastolic | 40 – 50 mmHg |
If your baby is sleepy, not feeding well, or seems “off” — blood pressure is one of the first things a doctor will check.
6. The Apgar Score — Your Baby’s First Report Card
The Apgar score is given at 1 minute and 5 minutes after birth. It measures five things: Appearance (skin color), Pulse (heart rate), Grimace (reflexes), Activity (muscle tone), and Respiration (breathing).
| Score | What It Means |
|---|---|
| 7 – 10 | Healthy and reassuring |
| 4 – 6 | Needs some extra support |
| 0 – 3 | Requires immediate medical attention |
A low score at 1 minute does not predict long-term health. Many babies with low initial scores go on to be perfectly healthy. The 5-minute score matters more.
Quick Reference — All Normal Newborn Vitals in One Place
| Vital Sign | Normal Range | Call Doctor If |
|---|---|---|
| Heart Rate | 120 – 160 BPM (resting) | Consistently above 190 or below 100 |
| Breathing Rate | 30 – 60 breaths/min | Consistently above 60 at rest |
| Temperature | 97.7°F – 99.3°F (underarm) | Above 100.4°F or below 97.7°F |
| Oxygen Saturation | Above 90% | Below 90% sustained |
| Blood Pressure | 60–80 / 40–50 mmHg | Drop with lethargy or poor feeding |
Screenshot this table and save it on your phone. You’ll thank yourself at 2AM.
Warning Signs — Call Your Pediatrician or Go to the ER
Trust your instincts. If something feels wrong, act on it. Here are the clear signs that need immediate attention:
- Blue or gray lips, tongue, or face — call 911 now
- Labored breathing — retractions, grunting, or gasping
- Fever above 100.4°F in a newborn under 3 months — go to the ER
- Too sleepy to wake for feeds — more than 4 to 5 hours without eating
- Fewer than 6 wet diapers in 24 hours after day 5 — possible dehydration
- Jaundice — yellow skin or eyes, especially spreading downward
If your baby looks yellow or you’re worried about jaundice, our newborn jaundice risk calculator can help you assess the risk while you contact your doctor.
Preterm Babies — The Ranges Are Different
If your baby was born before 37 weeks, normal ranges shift. Preterm babies are more prone to:
- Bradycardia — slower heart rate spells
- Breathing difficulties — underdeveloped lungs may need extra support
- Temperature drops — thinner skin means heat escapes faster
If your baby was premature, always follow the specific guidance your NICU team gave you. Their “normal” may look different from a full-term baby’s.
You’re Doing Better Than You Think
Knowing these numbers doesn’t make you a medical professional. But it does make you a more confident parent — one who can tell the difference between a normal “periodic breathing” moment and something that needs a phone call.
Keep this page bookmarked. Check in when you’re unsure. And always, always trust your gut. You know your baby.
Frequently Asked Questions
What are the normal vital signs for a newborn?
For a healthy full-term newborn: heart rate 120 to 160 BPM at rest, breathing rate 30 to 60 breaths per minute, temperature 97.7°F to 99.3°F under the arm, and oxygen saturation above 90%.
Is it normal for my newborn to stop breathing for a few seconds? Yes — this is called periodic breathing. Short pauses of 5 to 10 seconds are very common and normal in the first weeks. If the pause exceeds 15 to 20 seconds, your baby turns blue, or they don’t resume breathing on their own, call 911 immediately.
What is a normal heart rate for a newborn?
A resting, awake newborn typically has a heart rate of 120 to 160 BPM. During deep sleep it can drop to 80 to 120. During crying it can reach 190. All of these are normal.
What is a normal temperature for a newborn?
Under the arm, normal is 97.7°F to 99.3°F. A rectal temperature above 100.4°F in a baby under 3 months is a medical emergency — go to the ER right away.
When should I call my pediatrician about my newborn’s breathing?
Call if your baby’s breathing rate stays above 60 at rest, you see nostril flaring, skin pulling in between the ribs, grunting with most breaths, or any blue color around the lips or face. When in doubt, always call.
Written by S.A., founder of NewbornCry.com. Learn more about me here.
Medical Disclaimer: This article is for educational purposes only and is not a substitute for professional medical advice. Always consult your pediatrician with concerns about your baby’s health.
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