Typical Speech Development

November 29, 2025

One the frequently asked questions that I receive is . . . “how clear should my child’s speech be?”

The term “intelligibility” refers to a child’s speech clarity. A speech language pathologist offers services to assist with a child’s articulation affecting intelligibility.

Below is a quick, rough guide to show how clear your child’s speech should be.

By 18 months a child’s speech is normally 25% intelligible to the parents.

By 24 months a child’s speech is normally 50-75% intelligible to the parents.

By 36 months a child’s speech is normally 75-100% intelligible to parents.

If you look at this chart and are concerned for your child’s speech development, contact a speech language pathologist for an evaluation.

A one-year old child should be understood by 25% of strangers.

A two-year old child should be understood by 50% of strangers.

A three-year old child should be understood by 75% of strangers.

A four year old child should be understood by 100% of strangers.

If you have any questions or concerns about your child’s intelligibility, feel free to reach out.

Wildly,

Andrea