- Most babies crawl between 6 and 10 months, with a peak around 7 to 9 months, but the normal range is wide.
- For a premature baby, count from the due date, not the actual birth date.
- Army crawl, hands and knees, crab crawl, bottom shuffling… or none at all: about one baby in ten skips the stage and goes straight to standing, and it's not a problem.
- What matters is not the date but the progress: a baby who is gaining muscle tone, balance, and curiosity is on the right track.
- See a doctor if, around 12 months, your baby doesn't get around in any way, or sooner if they only use one side of their body or lose a skill they had acquired.
"At what age do babies crawl?" The question often comes up after a visit to friends whose baby of the same age is already zooming around on all fours. It deserves a real answer with numbers, but also a framework for interpreting it: which signs come before crawling, which ways of getting around are normal, how to help without pushing, and when medical advice is warranted. Here is all of that, in the order you'll need it.
At what age does a baby start crawling?
Most babies start moving around on the floor between 6 and 10 months. The most common pattern begins with the "army" crawl, tummy on the floor, around 7-8 months, followed by the classic hands-and-knees crawl, tummy off the floor, between 8 and 10 months. Some start as early as 5 months, others not until after 10, and this says nothing about their future development.
Two nuances that milestone charts often leave out:
- Premature baby: until age 2, we use corrected age, meaning we count from the due date. A baby born six weeks early who is 8 months old is compared with a 6½-month-old baby.
- Crawling is not mandatory. About one baby in ten never crawls: they get around sitting, rolling, or going straight from sitting to standing and then walking. It's not a delay, it's just a different route.
The stages that lead to crawling
Crawling doesn't come out of nowhere: it's the culmination of a chain of small motor achievements. Recognizing them lets you see where your baby is, rather than staring at a date.
| Stage | Approximate age | What it prepares |
|---|---|---|
| Holds head up on tummy, propped on forearms | 3 to 4 months | Neck and back muscle tone |
| Rolls from tummy to back, then from back to tummy | 4 to 6 months | Trunk coordination |
| Pushes up on straight arms, pivots on tummy | 5 to 7 months | Shoulder strength and sense of direction |
| Gets on hands and knees and rocks back and forth | 6 to 8 months | Balance on four points of support, a sign that takeoff is near |
| Crawls (army crawl, then hands and knees) | 6 to 10 months | Independent movement |
Four signs that takeoff is near
- Rocking on hands and knees: baby pushes up onto hands and knees and rocks in place. This is the most reliable sign; movement often follows within one to three weeks.
- Pivoting: on their tummy, they turn in circles to reach whatever interests them.
- Going backward: many babies scoot in reverse before moving forward, because the push from their arms is stronger than the push from their legs. It's frustrating for them, but perfectly normal for you.
- Interest in things out of reach: they stretch their whole body toward a toy and fuss when they can't reach it. The motivation is there; the mechanics are on their way.
Army crawl, hands and knees, crab: the different ways of getting around
There is no single right way to crawl. All of these are normal, including when a baby switches between them or combines several.
| Style | How it works | What to know |
|---|---|---|
| Army crawl (or belly crawl) | Tummy on the floor, pulling with the arms and pushing with the legs | Often the first style; some stick with it until they walk |
| Classic hands and knees | Tummy off the floor, opposite arm and leg move forward together | The most common style after 8 months |
| Crab or bear crawl | On hands and feet with legs straight, or sideways | A bit spectacular, totally normal |
| Bottom shuffling | Sitting, they move forward by pushing with their hands or one leg | Common in babies who like sitting; they rarely crawl afterward |
| Rolling | They get around by rolling over and over | A common transitional stage around 6 months |
How to support your baby without pushing
You can't teach a baby to crawl. You can give them the conditions to get there on their own, which is very different.
- Tummy time, starting in the first weeks, while awake and supervised, a few minutes several times a day. This is where all the back and shoulder muscle tone is built.
- Floor time, lots of it. A firm play mat is better than a bouncer, playpen, baby walker, or any seat that holds baby in one position. A baby who spends their days sitting or strapped in explores less with their body.
- A toy just out of reach, not too far or they'll give up, and a small ball rolling gently in front of them.
- Clothing that doesn't restrict movement: legs and knees free, bare feet or non-slip socks, on a floor with a bit of grip.
- You, on the floor with them, on all fours facing them: nothing motivates more than a familiar face to reach.
And one thing not to do: put them in a position their body hasn't found on its own yet. A baby who is sat up before they can sit, or held standing for long periods, learns a posture instead of the path that leads to it.
Babyproofing the house before the big day
The best time to babyproof is before your baby starts moving, because once they're off, they go faster than you imagine. The points that really matter:
- Gates at the top and bottom of stairs.
- Outlet covers, cords out of reach, unstable furniture anchored to the wall.
- Cleaning products and medications up high or locked away, plants checked.
- Small objects (button batteries, coins, magnets) off the floor: at this age, everything goes in the mouth.
- Coffee table corners padded, low cabinet doors locked.
The simplest test: get down on all fours in each room and see what you can reach.
When to see a doctor
The vast majority of worries fade with a few weeks of patience. Some signs, however, deserve medical advice, at the next checkup or right away depending on the case:
- Around 12 months, no way of getting around at all, whether crawling, bottom shuffling, or rolling, despite floor time.
- A clear asymmetry: baby only uses one side, always drags the same leg, or their body seems twisted at rest.
- Muscle tone that raises concern: a baby who is very floppy, who "slips through" your hands when held, or on the contrary very stiff, with legs straight and crossed.
- Regression: they used to do something and no longer do.
- A general lack of interest in their surroundings, beyond motor skills alone.
The doctor or pediatrician will assess muscle tone, symmetry, and overall development, well beyond the question of crawling alone. In most cases, the visit is reassuring; in others, early support, often through physical therapy or psychomotor therapy, makes all the difference.
Frequently asked questions
My 9-month-old isn't crawling. Should I be worried?
No, as long as they're progressing in other ways: sitting, rolling over, grabbing things, and showing interest in what's around them. At 9 months, they're still within the normal range, and some babies never crawl. Mostly, make sure they get enough floor time.
Will my baby crawl later because they're big or very calm?
A sturdy baby has a bit more weight to lift, and a placid baby feels less urgency to move: both can sometimes delay the start by a few weeks. It makes no difference to the outcome.
Do I need a baby walker to help?
No, quite the opposite. A baby walker prepares them for neither crawling nor walking, it short-circuits both, and it is not recommended for safety reasons. The floor remains the best equipment.
And after crawling, walking?
Most often, baby pulls up to stand against a piece of furniture a few weeks to a few months after starting to get around, cruises along the furniture, then lets go. First steps generally come between 10 and 18 months.
Crawling is a stage, not a deadline. Look less at the calendar than at the trajectory: a baby who is gaining muscle tone, balance, and curiosity is exactly where they should be, whether at 6 months or 10, on hands and knees or crab-style.
This article is for informational purposes and does not replace the advice of the professional who follows your child. If in doubt, the 9- and 12-month checkups are there for you to ask these questions.
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