Can you understand your toddler? What's normal, and what's not
It's normal for young children to be hard to understand, but how much should you actually be able to follow? Here's what to expect at each age.
Have you ever stared blankly at your toddler after they’ve said something, with no idea what they just said?
You are not alone.
It’s completely normal for young children to be hard to understand at times. In fact, it’s expected that their speech will be unclear. But how much should you actually be able to understand? And when is it time to be concerned?
Let’s dive in.
What is speech intelligibility?
Speech intelligibility refers to how clearly someone can be understood by others. It’s one of the ways we track speech development, and it gives us helpful clues about how your child’s sound system is coming along.
What’s typical for toddlers and preschoolers?
Every child develops at their own pace, but there are general milestones for how understandable a child should be at different ages. (If you don’t already have our free Language Tracker, grab it here. It covers key communication milestones from birth to age 3.)
Here are the speech intelligibility milestones for toddlers and preschoolers:
- By age 2: about 50% of your child’s speech should be understood.
- By age 3: that number jumps to 75%.
- By age 4: you should understand about 90-100% of what your child says, even if speech errors remain.
This means that by age 4, most children are speaking in full sentences that are easily understood by grown-ups and friends, even though some speech errors (like saying “wabbit” for rabbit) are still totally normal.
So what impacts intelligibility?
Speech intelligibility can be affected by many things. Here are a few of the most common:
- Sound errors: substituting one sound for another (e.g., “tat” for cat)
- Omissions: leaving out a sound (e.g., “do” for dog)
- Phonological disorders: using sound patterns typical of a younger child
- Motor planning disorders: difficulty coordinating the precise movements needed to say words clearly
- Hearing difficulties: even mild hearing loss (like from frequent ear infections) can impact how sounds are learned and produced
- Speed or rhythm of speech: talking too fast or using an irregular rhythm
When should you be concerned?
If your child is:
- Not meeting the intelligibility milestones above
- Making many speech errors
- Getting frustrated when not understood
…it might be time to check in with a speech-language pathologist.
An SLP can assess whether your child’s speech is on track, explain what’s age-appropriate, and help you decide if speech therapy would be helpful.
Unclear speech is part of the process of learning how to talk. If something doesn’t feel right, trust your gut.
How you can support your child at home
It’s best to leave direct sound correction to a professional, but there are lots of simple ways you can support your child’s intelligibility in everyday life.
Final thoughts
Unclear speech is part of learning how to talk, and some speech errors are expected along the way. But if something doesn’t feel right, trust your gut.
Early support can make a huge difference in helping your child communicate.
