“Most children master all speech sounds by the
age of eight, acquiring new sounds in a developmental sequence,
with the easier
sounds learned before the more difficult ones.
The following are average age estimate of when consonant production occurs
(Sander 1961, 62).”
Sound = Age Range
M = 1.5-3
N = 1.5-3
P = 1.5-3
B = 1.5-4
H = 1.5-3
W = 1.5-3
D = 2-4
K = 2-4
G = 2-4
T = 2-6
F = 2.5-4
L = 3-6
S = 3-8
Y = 2.5-4
R = 3-6
V = 4-8
Z = 3.5-8
J = 4-7
This
is a general guide for when a child develops and then masters sounds.
This chart should only be used as a guide. Please see our 'Sound
Chart' for more detailed descriptions! Keep in mind that boys and girls
can develop at different rates, so it's important to be aware of those
possible differences.