- Rolls over5-6 months
Baby Developmental Milestone Checker
Check which developmental milestones your baby should reach at this age.
Developmental Milestones
Each baby develops at their own pace. Consult your doctor if you have concerns.
Every baby develops at their own pace. These milestones are general guidelines. If you have concerns about your baby's development, please consult your pediatrician.
Parent guide
How to use this tool
Check which developmental milestones your baby should reach at this age.
How to use
- Open Baby Developmental Milestone Checker and enter the fields shown in the form.
What the result means
Check which developmental milestones your baby should reach at this age.
Method
Age-banded milestone checklist aligned with public developmental guidance
Worked example
Important limitation
Milestone timing varies; loss of skills or caregiver concern warrants professional evaluation.
Primary sources
References and data notes
Safety note
Use this result for planning and conversation. If symptoms, unusual growth changes, feeding problems, pregnancy concerns, or urgent health questions arise, contact a qualified healthcare professional.
Frequently asked questions
Which sources and method does this tool use?
The method, version and primary sources are listed in the evidence section above.
When should I use Baby Developmental Milestone Checker?
Use it when you want a quick educational estimate for: Check which developmental milestones your baby should reach at this age.
What affects the Baby Developmental Milestone Checker result?
The result depends on the age, dates, measurements, units, reference choice, and assumptions shown in the form.