Real family data
When Do Babies Actually Laugh? Real Ages from Thousands of Families
Half of babies laugh for the first time by
3 months
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The most common age was 3 months; the middle half fell between 3 months and 4 months. Based on real entries from the Baby Notebook community.
| Age | Share of families |
|---|---|
| 1 month | 3.9% |
| 2 months | 18.9% |
| 3 months | 47.5% |
| 4 months | 18.6% |
| 5 months | 7.3% |
| 6 months | 1.8% |
| 7+ months | 2% |
Boys and girls: boys averaged 3.2 months and girls 3.3 months.
A later month on this chart is a memory, not a verdict. About a quarter of the families here recorded this one after the middle range ends, and the spread across all of them is wide. If the timing worries you, your pediatrician is the right person to ask.
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