Child Height Percentile Calculator

Last updated: July 5, 2025 • Health Calculators

About This Calculator

This calculator estimates a child's current growth percentile and predicts adult height using WHO Growth Reference data (ages 2–19). It helps parents and healthcare professionals assess development progress against standardized benchmarks.

How It Works

The calculator locates the child's height percentile by interpolating between WHO height-for-age curves, then projects that same percentile to age 19 to estimate adult height.

Adult Height = WHO Height_{age 19} at Current Percentile ± BMI Adjustment

Height Percentile Reference Tables

These tables show estimated height values at key percentiles (15%, 25%, 50%, 75%, 90%) for children aged 5 to 18, based on WHO Growth Reference 2007.

Boys Height Percentiles (cm)

Age	15%	25%	50%	75%	90%
5	104	106	109	113	116
6	110	112	115	119	122
7	115	117	121	124	128
8	120	123	127	130	134
9	126	128	132	136	140
10	132	134	138	142	146
11	138	140	144	148	152
12	144	146	150	154	158
13	150	152	156	160	164
14	156	158	162	166	170
15	162	164	168	172	176
16	168	170	174	178	182
17	172	174	178	182	186
18	175	177	181	185	189

Girls Height Percentiles (cm)

Age	15%	25%	50%	75%	90%
5	104	106	109	113	116
6	110	112	115	119	122
7	115	117	121	124	128
8	120	123	127	130	134
9	126	128	132	136	140
10	132	134	138	142	146
11	138	140	144	148	152
12	144	146	150	154	158
13	150	152	156	160	164
14	155	157	161	165	169
15	158	160	164	168	172
16	160	162	166	170	174
17	161	163	167	171	175
18	162	164	168	172	176

Frequently Asked Questions

How accurate is the prediction?

It provides a percentile-based estimate using standard growth charts. Individual outcomes may vary due to genetics and health.

What data does it use?

It uses WHO Growth Reference 2007 height-for-age percentiles for children aged 2 to 19 years.

Is BMI considered?

Yes. The prediction includes a small adjustment based on the child's BMI category.

Is this a diagnostic tool?

No. This tool is for educational use and does not replace professional medical evaluation.

Age	15%	25%	50%	75%	90%
5	104	106	109	113	116
6	110	112	115	119	122
7	115	117	121	124	128
8	120	123	127	130	134
9	126	128	132	136	140
10	132	134	138	142	146
11	138	140	144	148	152
12	144	146	150	154	158
13	150	152	156	160	164
14	156	158	162	166	170
15	162	164	168	172	176
16	168	170	174	178	182
17	172	174	178	182	186
18	175	177	181	185	189

Age	15%	25%	50%	75%	90%
5	104	106	109	113	116
6	110	112	115	119	122
7	115	117	121	124	128
8	120	123	127	130	134
9	126	128	132	136	140
10	132	134	138	142	146
11	138	140	144	148	152
12	144	146	150	154	158
13	150	152	156	160	164
14	155	157	161	165	169
15	158	160	164	168	172
16	160	162	166	170	174
17	161	163	167	171	175
18	162	164	168	172	176

Age	15%	25%	50%	75%	90%
5	104	106	109	113	116
6	110	112	115	119	122
7	115	117	121	124	128
8	120	123	127	130	134
9	126	128	132	136	140
10	132	134	138	142	146
11	138	140	144	148	152
12	144	146	150	154	158
13	150	152	156	160	164
14	156	158	162	166	170
15	162	164	168	172	176
16	168	170	174	178	182
17	172	174	178	182	186
18	175	177	181	185	189

Age	15%	25%	50%	75%	90%
5	104	106	109	113	116
6	110	112	115	119	122
7	115	117	121	124	128
8	120	123	127	130	134
9	126	128	132	136	140
10	132	134	138	142	146
11	138	140	144	148	152
12	144	146	150	154	158
13	150	152	156	160	164
14	155	157	161	165	169
15	158	160	164	168	172
16	160	162	166	170	174
17	161	163	167	171	175
18	162	164	168	172	176