This is a collective resource of norms and milestones for speech-language development. SLPs are often asked questions regarding typical age of sound acquisition and development of language.
Keep this speech sound acquisition chart on hand to determine if your child or client is acquiring speech sounds appropriately. Click on the image below to download the speech sound development chart PDF.
The following chart shows acquisition of speech sounds based on the ages when 90% of English speaking children produce single sounds at the word level. The standard deviation for the Crowe and McLeod* normative data is 6 months to 18 months depending on the specific speech sound.
There is a typical progression of development of speech sounds in the English language. All sounds have a range of mastery and may develop before the given age. The chart below shows the sounds a child is expected to say by the end of the year listed.
The chart is hierarchical ordered by the mean age of acquisition of consonant phonemes. The 5 different colors of bars group the set of consonants by acquired mean age of acquisition.
If you’re looking for a speech sounddevelopmentchart to help you determine where to start with your speech articulation goals, it’s right here! The chart has been updated with the results from McLeod & Crowe’s (2016) study.
Advocate for appropriate speech sounddevelopmental norms like a pro with this easy-to-read chart. Print it on cardstock to hang in your office, hand it to a concerned parent, or share with administrators to advocate for appropriate eligibility.
Each solid bar indicates when children generally MASTER the specified sounds. This chart depicts a range of development and should only be used as a general guide.
