Wondering when babies start crawling, and whether yours is "behind"? The short answer up front:

Crawling is the milestone parents watch most anxiously and compare most fiercely. It's also one of the most variable, which is exactly why the experts have quietly stopped treating it as a pass-or-fail test.

Quick Reference

QuestionShort answer
When do babies crawl?Usually 7–10 months
Earliest / latest normalSome from 6 months; some not until after 10, or never
Is skipping crawling okay?Yes, if your baby is moving another way and pulling up
Is crawling a required milestone?No. The CDC removed it; movement and symmetry matter more
Best way to encourage itTummy time, floor time, toys just out of reach
When to askNot moving at all, or using only one side, by 12 months

When do babies start crawling?

Most babies get mobile on the floor somewhere between 7 and 10 months. Some surprise you at 6 months; others take their time and crawl closer to a first birthday. The American Academy of Pediatrics puts crawling in the broad 8-to-12-month window of new movement, alongside pulling to stand and cruising (AAP, 2024).

The range is genuinely wide, and it doesn't predict anything about later coordination or how soon your baby walks. A late crawler is not a slow child. They're a baby on their own timeline, which is the only timeline that matters.

New mobility tends to arrive in a busy season. Many babies hit a sleep wobble and a clingy stretch at the same time, because crawling, the 8-month sleep regression, and separation anxiety often share one developmental leap. If your nights and your cuddle-demands spiked alongside the floor practice, that's why.

The different ways babies crawl (and skipping it altogether)

"Crawling" covers a lot of styles, and none is more correct than another:

And here's the part that surprises people: some babies never crawl. They go straight from sitting to pulling up to cruising to walking. As long as your baby is finding a way to move and explore, skipping the hands-and-knees stage is not a problem. The NHS lists crawling as just one of several ways babies become mobile, not a box every baby must tick (NHS, 2024).

Signs your baby is getting ready to crawl

Crawling doesn't appear from nowhere. Watch for the build-up:

Backward first is incredibly common. Pushing is easier than pulling, so many babies reverse away from the toy they want for a week or two before the forward gear kicks in.

How to encourage crawling

You can't install crawling on a schedule, but you can build the strength and motivation behind it.

If you want age-matched movement ideas, KidyGrow's developmental activity finder filters floor-play activities by age and goal.

Wait or act? A simple guide

What you're seeingWait it outAct now
Not crawling yet but sitting, rolling, pulling up✓ Right on track
Scooting backward or commando-crawling✓ Counts as crawling
Skipped crawling, going straight for furniture✓ Normal path
Using only one arm or one leg to move✓ Mention to your pediatrician
No way of moving at all by 12 months✓ Get it checked

When in doubt, look at the trend and the symmetry. A baby steadily gaining new ways to move is doing the job, whatever the style.

Common mistakes to avoid

When to talk to your pediatrician

Because crawling itself isn't a required milestone, "not crawling" alone is rarely the worry. Reasons to ask, not to panic: your baby isn't bearing weight on their legs when held standing, isn't sitting without support by 9 months, consistently uses only one side of the body, has no way of getting around at all by 12 months, or has lost a movement skill they previously had. Those are about movement and symmetry, not about the specific crawl. Crawling sits alongside other milestones worth a gentle eye, like pointing around 12 months and babbling by 9 months; the when babies start talking guide covers the language side.

Frequently asked questions

When do most babies start crawling?
Usually between 7 and 10 months, though some start at 6 and others much later. The range is wide and normal.

Is it normal for a baby not to crawl?
Yes. Some babies bottom-shuffle, roll, or skip crawling entirely and go straight to pulling up and walking. As long as they're moving and using both sides of the body, it's fine.

Why is my baby crawling backward?
Pushing is easier than pulling, so many babies move backward or in circles first. Forward crawling usually follows within a week or two.

How can I encourage my baby to crawl?
Plenty of tummy time, open floor space, a favorite toy just out of reach, and less time in walkers and bouncers. Getting on the floor with them helps most of all.

Should I worry if my 9-month-old isn't crawling?
Not on its own, since crawling isn't a required milestone. Look at whether your baby is sitting, bearing weight on their legs, and using both sides of the body. Raise concerns about those with your pediatrician.

Do babies who skip crawling have problems later?
No. Skipping crawling in favor of cruising and walking is a normal path and isn't linked to later difficulties on its own.

How KidyGrow helps

The crawling wait is mostly a waiting game, and waiting is easier when you can see movement adding up instead of staring at one frozen week. That's part of what KidyGrow holds for you: it remembers the small steps you forget you noticed.

You jot down what you see. Early on the guidance is general: "around 8 to 10 months, most babies are working toward crawling." After a couple of weeks of your own notes, the morning Daily Brief gets specific: "two weeks ago it was rocking on hands and knees, last week backward scooting, this week the first forward shuffle." Laid side by side, that's obvious progress. In the moment, it just feels like nothing is happening.

Some weeks there's no movement news at all, because some weeks a baby just wants to be held and watch. The app says so instead of inventing momentum. Give it three to five days before you expect much. What changes is quiet: the worry moves from "why isn't my baby crawling yet" to "here's the line they're actually moving along."

Sources

  1. American Academy of Pediatrics (HealthyChildren) - Movement Milestones: Babies 8 to 12 Months (2024). https://www.healthychildren.org/English/ages-stages/baby/Pages/Movement-8-to-12-Months.aspx
  2. NHS - Birth to 5: Baby's development (2024). https://www.nhs.uk/conditions/baby/babys-development/
  3. Centers for Disease Control and Prevention - Developmental Milestones, 9 Months (2024). https://www.cdc.gov/milestones/9-months.html