Boys BMI-for-age 2-20 years (5th through 95th percentiles)

5th Percentile

Age (in months) BMI
24 14.73732
24.5 14.71929
25.5 14.68361
26.5 14.64843
27.5 14.61379
28.5 14.57969
29.5 14.54615
30.5 14.51319
31.5 14.48084
32.5 14.44909
33.5 14.41798
34.5 14.3875
35.5 14.35767
36.5 14.32851
37.5 14.30002
38.5 14.27222
39.5 14.2451
40.5 14.21868
41.5 14.19297
42.5 14.16796
43.5 14.14367
44.5 14.12009
45.5 14.09723
46.5 14.07509
47.5 14.05366
48.5 14.03296
49.5 14.01296
50.5 13.99367
51.5 13.97509
52.5 13.95722
53.5 13.94003
54.5 13.92353
55.5 13.90771
56.5 13.89257
57.5 13.87809
58.5 13.86426
59.5 13.85108
60.5 13.83855
61.5 13.82665
62.5 13.81537
63.5 13.80472
64.5 13.79469
65.5 13.78527
66.5 13.77646
67.5 13.76825
68.5 13.76065
69.5 13.75364
70.5 13.74724
71.5 13.74144
72.5 13.73624
73.5 13.73164
74.5 13.72764
75.5 13.72424
76.5 13.72145
77.5 13.71927
78.5 13.71769
79.5 13.71672
80.5 13.71637
81.5 13.71663
82.5 13.71751
83.5 13.71901
84.5 13.72113
85.5 13.72387
86.5 13.72724
87.5 13.73124
88.5 13.73587
89.5 13.74113
90.5 13.74702
91.5 13.75355
92.5 13.76071
93.5 13.76852
94.5 13.77695
95.5 13.78603
96.5 13.79575
97.5 13.8061
98.5 13.8171
99.5 13.82873
100.5 13.84101
101.5 13.85392
102.5 13.86747
103.5 13.88166
104.5 13.89648
105.5 13.91194
106.5 13.92804
107.5 13.94476
108.5 13.96212
109.5 13.9801
110.5 13.99871
111.5 14.01795
112.5 14.0378
113.5 14.05828
114.5 14.07937
115.5 14.10107
116.5 14.12338
117.5 14.1463
118.5 14.16982
119.5 14.19394
120.5 14.21866
121.5 14.24396
122.5 14.26985
123.5 14.29633
124.5 14.32338
125.5 14.35101
126.5 14.3792
127.5 14.40796
128.5 14.43727
129.5 14.46714
130.5 14.49756
131.5 14.52852
132.5 14.56001
133.5 14.59203
134.5 14.62458
135.5 14.65765
136.5 14.69122
137.5 14.72531
138.5 14.75989
139.5 14.79496
140.5 14.83052
141.5 14.86655
142.5 14.90306
143.5 14.94002
144.5 14.97745
145.5 15.01532
146.5 15.05363
147.5 15.09238
148.5 15.13155
149.5 15.17113
150.5 15.21113
151.5 15.25152
152.5 15.2923
153.5 15.33347
154.5 15.37501
155.5 15.41692
156.5 15.45918
157.5 15.50179
158.5 15.54474
159.5 15.58801
160.5 15.63161
161.5 15.67551
162.5 15.71971
163.5 15.7642
164.5 15.80897
165.5 15.85401
166.5 15.89931
167.5 15.94486
168.5 15.99065
169.5 16.03667
170.5 16.0829
171.5 16.12934
172.5 16.17598
173.5 16.2228
174.5 16.2698
175.5 16.31696
176.5 16.36427
177.5 16.41172
178.5 16.4593
179.5 16.507
180.5 16.55481
181.5 16.60271
182.5 16.6507
183.5 16.69875
184.5 16.74687
185.5 16.79503
186.5 16.84323
187.5 16.89146
188.5 16.93969
189.5 16.98792
190.5 17.03615
191.5 17.08434
192.5 17.1325
193.5 17.18061
194.5 17.22865
195.5 17.27662
196.5 17.3245
197.5 17.37229
198.5 17.41995
199.5 17.46749
200.5 17.51489
201.5 17.56214
202.5 17.60923
203.5 17.65613
204.5 17.70284
205.5 17.74935
206.5 17.79564
207.5 17.8417
208.5 17.88751
209.5 17.93306
210.5 17.97834
211.5 18.02333
212.5 18.06802
213.5 18.11239
214.5 18.15644
215.5 18.20014
216.5 18.24349
217.5 18.28646
218.5 18.32904
219.5 18.37122
220.5 18.41299
221.5 18.45432
222.5 18.4952
223.5 18.53562
224.5 18.57556
225.5 18.615
226.5 18.65393
227.5 18.69233
228.5 18.73019
229.5 18.76748
230.5 18.8042
231.5 18.84031
232.5 18.87581
233.5 18.91068
234.5 18.94489
235.5 18.97844
236.5 19.01129
237.5 19.04343
238.5 19.07484
239.5 19.10551
240 19.12055
240.5 19.1354

10th Percentile

Age (in months) BMI
24 15.09033
24.5 15.07117
25.5 15.03336
26.5 14.9962
27.5 14.95969
28.5 14.92385
29.5 14.88866
30.5 14.85414
31.5 14.82027
32.5 14.78707
33.5 14.75453
34.5 14.72264
35.5 14.69142
36.5 14.66086
37.5 14.63096
38.5 14.60173
39.5 14.57316
40.5 14.54527
41.5 14.51805
42.5 14.49151
43.5 14.46566
44.5 14.4405
45.5 14.41604
46.5 14.39229
47.5 14.36926
48.5 14.34695
49.5 14.32537
50.5 14.30453
51.5 14.28444
52.5 14.2651
53.5 14.24651
54.5 14.22868
55.5 14.21162
56.5 14.19532
57.5 14.17979
58.5 14.16503
59.5 14.15103
60.5 14.1378
61.5 14.12534
62.5 14.11363
63.5 14.10268
64.5 14.09249
65.5 14.08305
66.5 14.07436
67.5 14.06642
68.5 14.05921
69.5 14.05274
70.5 14.04701
71.5 14.042
72.5 14.03772
73.5 14.03417
74.5 14.03134
75.5 14.02922
76.5 14.02783
77.5 14.02714
78.5 14.02717
79.5 14.02791
80.5 14.02935
81.5 14.0315
82.5 14.03435
83.5 14.03791
84.5 14.04216
85.5 14.04711
86.5 14.05276
87.5 14.0591
88.5 14.06613
89.5 14.07386
90.5 14.08228
91.5 14.09138
92.5 14.10116
93.5 14.11163
94.5 14.12279
95.5 14.13462
96.5 14.14712
97.5 14.1603
98.5 14.17416
99.5 14.18868
100.5 14.20387
101.5 14.21972
102.5 14.23624
103.5 14.25341
104.5 14.27124
105.5 14.28972
106.5 14.30884
107.5 14.32862
108.5 14.34903
109.5 14.37008
110.5 14.39177
111.5 14.41409
112.5 14.43703
113.5 14.46059
114.5 14.48478
115.5 14.50957
116.5 14.53498
117.5 14.56099
118.5 14.5876
119.5 14.61481
120.5 14.6426
121.5 14.67098
122.5 14.69994
123.5 14.72948
124.5 14.75958
125.5 14.79025
126.5 14.82148
127.5 14.85326
128.5 14.88558
129.5 14.91845
130.5 14.95184
131.5 14.98577
132.5 15.02022
133.5 15.05519
134.5 15.09066
135.5 15.12664
136.5 15.16311
137.5 15.20007
138.5 15.23751
139.5 15.27543
140.5 15.31381
141.5 15.35265
142.5 15.39195
143.5 15.43169
144.5 15.47187
145.5 15.51248
146.5 15.5535
147.5 15.59495
148.5 15.6368
149.5 15.67904
150.5 15.72168
151.5 15.7647
152.5 15.80809
153.5 15.85184
154.5 15.89595
155.5 15.94041
156.5 15.9852
157.5 16.03032
158.5 16.07576
159.5 16.12151
160.5 16.16756
161.5 16.21391
162.5 16.26054
163.5 16.30743
164.5 16.3546
165.5 16.40201
166.5 16.44967
167.5 16.49756
168.5 16.54568
169.5 16.594
170.5 16.64254
171.5 16.69126
172.5 16.74017
173.5 16.78924
174.5 16.83848
175.5 16.88787
176.5 16.9374
177.5 16.98706
178.5 17.03683
179.5 17.08672
180.5 17.1367
181.5 17.18676
182.5 17.23689
183.5 17.28709
184.5 17.33734
185.5 17.38763
186.5 17.43794
187.5 17.48827
188.5 17.53861
189.5 17.58893
190.5 17.63924
191.5 17.68951
192.5 17.73974
193.5 17.78991
194.5 17.84001
195.5 17.89003
196.5 17.93995
197.5 17.98977
198.5 18.03947
199.5 18.08904
200.5 18.13846
201.5 18.18773
202.5 18.23682
203.5 18.28573
204.5 18.33444
205.5 18.38294
206.5 18.43121
207.5 18.47925
208.5 18.52703
209.5 18.57455
210.5 18.62179
211.5 18.66873
212.5 18.71537
213.5 18.76168
214.5 18.80766
215.5 18.85328
216.5 18.89854
217.5 18.94342
218.5 18.98791
219.5 19.03198
220.5 19.07563
221.5 19.11884
222.5 19.16159
223.5 19.20387
224.5 19.24567
225.5 19.28696
226.5 19.32773
227.5 19.36797
228.5 19.40766
229.5 19.44678
230.5 19.48531
231.5 19.52325
232.5 19.56057
233.5 19.59726
234.5 19.6333
235.5 19.66867
236.5 19.70335
237.5 19.73733
238.5 19.7706
239.5 19.80312
240 19.8191
240.5 19.83489

25th Percentile

Age (in months) BMI
24 15.74164
24.5 15.71963
25.5 15.67634
26.5 15.63403
27.5 15.59268
28.5 15.55226
29.5 15.51275
30.5 15.47414
31.5 15.43639
32.5 15.39951
33.5 15.36345
34.5 15.32822
35.5 15.29379
36.5 15.26016
37.5 15.22731
38.5 15.19523
39.5 15.16392
40.5 15.13337
41.5 15.10359
42.5 15.07458
43.5 15.04633
44.5 15.01886
45.5 14.99218
46.5 14.96629
47.5 14.9412
48.5 14.91694
49.5 14.89351
50.5 14.87093
51.5 14.84921
52.5 14.82838
53.5 14.80844
54.5 14.78941
55.5 14.7713
56.5 14.75414
57.5 14.73792
58.5 14.72266
59.5 14.70836
60.5 14.69504
61.5 14.68269
62.5 14.67133
63.5 14.66094
64.5 14.65154
65.5 14.64312
66.5 14.63567
67.5 14.6292
68.5 14.62369
69.5 14.61914
70.5 14.61555
71.5 14.6129
72.5 14.6112
73.5 14.61042
74.5 14.61057
75.5 14.61163
76.5 14.61359
77.5 14.61645
78.5 14.6202
79.5 14.62483
80.5 14.63032
81.5 14.63668
82.5 14.64389
83.5 14.65194
84.5 14.66082
85.5 14.67054
86.5 14.68107
87.5 14.69241
88.5 14.70455
89.5 14.71749
90.5 14.73121
91.5 14.74571
92.5 14.76099
93.5 14.77703
94.5 14.79382
95.5 14.81136
96.5 14.82965
97.5 14.84867
98.5 14.86841
99.5 14.88888
100.5 14.91006
101.5 14.93194
102.5 14.95453
103.5 14.9778
104.5 15.00176
105.5 15.0264
106.5 15.05172
107.5 15.07769
108.5 15.10433
109.5 15.13161
110.5 15.15954
111.5 15.1881
112.5 15.2173
113.5 15.24712
114.5 15.27755
115.5 15.30859
116.5 15.34024
117.5 15.37248
118.5 15.40531
119.5 15.43872
120.5 15.4727
121.5 15.50725
122.5 15.54236
123.5 15.57803
124.5 15.61424
125.5 15.65099
126.5 15.68826
127.5 15.72607
128.5 15.76439
129.5 15.80322
130.5 15.84255
131.5 15.88237
132.5 15.92268
133.5 15.96347
134.5 16.00473
135.5 16.04646
136.5 16.08864
137.5 16.13127
138.5 16.17434
139.5 16.21784
140.5 16.26177
141.5 16.30612
142.5 16.35087
143.5 16.39603
144.5 16.44158
145.5 16.48751
146.5 16.53382
147.5 16.5805
148.5 16.62754
149.5 16.67494
150.5 16.72267
151.5 16.77074
152.5 16.81914
153.5 16.86786
154.5 16.91689
155.5 16.96621
156.5 17.01583
157.5 17.06574
158.5 17.11592
159.5 17.16636
160.5 17.21706
161.5 17.26801
162.5 17.3192
163.5 17.37062
164.5 17.42227
165.5 17.47412
166.5 17.52618
167.5 17.57843
168.5 17.63086
169.5 17.68347
170.5 17.73624
171.5 17.78917
172.5 17.84225
173.5 17.89546
174.5 17.9488
175.5 18.00225
176.5 18.05581
177.5 18.10947
178.5 18.16322
179.5 18.21704
180.5 18.27093
181.5 18.32488
182.5 18.37887
183.5 18.4329
184.5 18.48696
185.5 18.54102
186.5 18.5951
187.5 18.64916
188.5 18.70321
189.5 18.75723
190.5 18.81121
191.5 18.86514
192.5 18.919
193.5 18.97279
194.5 19.0265
195.5 19.08011
196.5 19.13361
197.5 19.187
198.5 19.24025
199.5 19.29335
200.5 19.3463
201.5 19.39908
202.5 19.45168
203.5 19.50409
204.5 19.55629
205.5 19.60827
206.5 19.66002
207.5 19.71153
208.5 19.76278
209.5 19.81376
210.5 19.86445
211.5 19.91485
212.5 19.96493
213.5 20.01469
214.5 20.06412
215.5 20.11319
216.5 20.1619
217.5 20.21022
218.5 20.25816
219.5 20.30569
220.5 20.35279
221.5 20.39947
222.5 20.44569
223.5 20.49145
224.5 20.53674
225.5 20.58153
226.5 20.62582
227.5 20.66959
228.5 20.71283
229.5 20.75552
230.5 20.79766
231.5 20.83922
232.5 20.88019
233.5 20.92056
234.5 20.96032
235.5 20.99946
236.5 21.03795
237.5 21.07579
238.5 21.11296
239.5 21.14946
240 21.16745
240.5 21.18526

50th Percentile

Age (in months) BMI
24 16.57503
24.5 16.54777
25.5 16.49443
26.5 16.4426
27.5 16.39224
28.5 16.34334
29.5 16.29584
30.5 16.24972
31.5 16.20495
32.5 16.1615
33.5 16.11933
34.5 16.07843
35.5 16.03876
36.5 16.0003
37.5 15.96304
38.5 15.92695
39.5 15.89203
40.5 15.85824
41.5 15.82559
42.5 15.79406
43.5 15.76364
44.5 15.73434
45.5 15.70614
46.5 15.67904
47.5 15.65305
48.5 15.62817
49.5 15.60441
50.5 15.58176
51.5 15.56025
52.5 15.53987
53.5 15.52065
54.5 15.50258
55.5 15.48569
56.5 15.46998
57.5 15.45546
58.5 15.44214
59.5 15.43003
60.5 15.41914
61.5 15.40947
62.5 15.40103
63.5 15.39382
64.5 15.38783
65.5 15.38307
66.5 15.37953
67.5 15.37721
68.5 15.37609
69.5 15.37618
70.5 15.37745
71.5 15.37991
72.5 15.38353
73.5 15.38831
74.5 15.39423
75.5 15.40127
76.5 15.40943
77.5 15.41869
78.5 15.42902
79.5 15.44042
80.5 15.45288
81.5 15.46636
82.5 15.48087
83.5 15.49637
84.5 15.51287
85.5 15.53034
86.5 15.54876
87.5 15.56812
88.5 15.58841
89.5 15.60961
90.5 15.63171
91.5 15.65469
92.5 15.67853
93.5 15.70323
94.5 15.72877
95.5 15.75513
96.5 15.78231
97.5 15.81029
98.5 15.83905
99.5 15.86858
100.5 15.89888
101.5 15.92992
102.5 15.96169
103.5 15.99419
104.5 16.02741
105.5 16.06132
106.5 16.09591
107.5 16.13119
108.5 16.16712
109.5 16.20371
110.5 16.24094
111.5 16.2788
112.5 16.31728
113.5 16.35637
114.5 16.39606
115.5 16.43633
116.5 16.47718
117.5 16.5186
118.5 16.56057
119.5 16.60309
120.5 16.64614
121.5 16.68972
122.5 16.73381
123.5 16.7784
124.5 16.8235
125.5 16.86907
126.5 16.91512
127.5 16.96164
128.5 17.00862
129.5 17.05604
130.5 17.1039
131.5 17.15218
132.5 17.20089
133.5 17.25
134.5 17.29951
135.5 17.34942
136.5 17.3997
137.5 17.45036
138.5 17.50138
139.5 17.55276
140.5 17.60448
141.5 17.65653
142.5 17.70892
143.5 17.76162
144.5 17.81463
145.5 17.86795
146.5 17.92155
147.5 17.97544
148.5 18.02961
149.5 18.08404
150.5 18.13873
151.5 18.19367
152.5 18.24884
153.5 18.30426
154.5 18.35989
155.5 18.41574
156.5 18.4718
157.5 18.52805
158.5 18.5845
159.5 18.64113
160.5 18.69793
161.5 18.75489
162.5 18.81202
163.5 18.86929
164.5 18.9267
165.5 18.98424
166.5 19.04191
167.5 19.0997
168.5 19.15759
169.5 19.21558
170.5 19.27366
171.5 19.33182
172.5 19.39006
173.5 19.44837
174.5 19.50673
175.5 19.56514
176.5 19.6236
177.5 19.68208
178.5 19.7406
179.5 19.79912
180.5 19.85766
181.5 19.9162
182.5 19.97473
183.5 20.03324
184.5 20.09172
185.5 20.15017
186.5 20.20858
187.5 20.26694
188.5 20.32524
189.5 20.38346
190.5 20.44162
191.5 20.49968
192.5 20.55765
193.5 20.61551
194.5 20.67326
195.5 20.73089
196.5 20.78839
197.5 20.84574
198.5 20.90294
199.5 20.95999
200.5 21.01686
201.5 21.07356
202.5 21.13007
203.5 21.18638
204.5 21.24248
205.5 21.29836
206.5 21.35402
207.5 21.40944
208.5 21.46461
209.5 21.51952
210.5 21.57417
211.5 21.62854
212.5 21.68262
213.5 21.7364
214.5 21.78988
215.5 21.84304
216.5 21.89587
217.5 21.94836
218.5 22.00051
219.5 22.05229
220.5 22.10371
221.5 22.15476
222.5 22.20541
223.5 22.25567
224.5 22.30553
225.5 22.35497
226.5 22.40399
227.5 22.45257
228.5 22.50072
229.5 22.54841
230.5 22.59565
231.5 22.64243
232.5 22.68873
233.5 22.73456
234.5 22.7799
235.5 22.82474
236.5 22.86909
237.5 22.91293
238.5 22.95626
239.5 22.99908
240 23.02029
240.5 23.04138

 

 

75th Percentile

Age (in months) BMI
24 17.55719
24.5 17.52129
25.5 17.45135
26.5 17.38384
27.5 17.31871
28.5 17.25593
29.5 17.19546
30.5 17.13726
31.5 17.0813
32.5 17.02753
33.5 16.97592
34.5 16.92645
35.5 16.87907
36.5 16.83376
37.5 16.79048
38.5 16.7492
39.5 16.70988
40.5 16.67251
41.5 16.63704
42.5 16.60345
43.5 16.5717
44.5 16.54177
45.5 16.51364
46.5 16.48726
47.5 16.46262
48.5 16.4397
49.5 16.41846
50.5 16.39889
51.5 16.38097
52.5 16.36468
53.5 16.35001
54.5 16.33693
55.5 16.32545
56.5 16.31554
57.5 16.3072
58.5 16.30042
59.5 16.29518
60.5 16.29148
61.5 16.28932
62.5 16.28868
63.5 16.28955
64.5 16.29192
65.5 16.29578
66.5 16.30113
67.5 16.30794
68.5 16.3162
69.5 16.3259
70.5 16.33702
71.5 16.34955
72.5 16.36346
73.5 16.37875
74.5 16.39537
75.5 16.41333
76.5 16.4326
77.5 16.45315
78.5 16.47496
79.5 16.49801
80.5 16.52229
81.5 16.54776
82.5 16.5744
83.5 16.60219
84.5 16.63112
85.5 16.66114
86.5 16.69225
87.5 16.72442
88.5 16.75763
89.5 16.79185
90.5 16.82707
91.5 16.86325
92.5 16.90039
93.5 16.93845
94.5 16.97742
95.5 17.01727
96.5 17.05799
97.5 17.09955
98.5 17.14193
99.5 17.18512
100.5 17.22909
101.5 17.27383
102.5 17.31932
103.5 17.36552
104.5 17.41244
105.5 17.46005
106.5 17.50833
107.5 17.55726
108.5 17.60683
109.5 17.65702
110.5 17.7078
111.5 17.75918
112.5 17.81112
113.5 17.86361
114.5 17.91664
115.5 17.9702
116.5 18.02425
117.5 18.07879
118.5 18.13381
119.5 18.18929
120.5 18.24521
121.5 18.30156
122.5 18.35833
123.5 18.4155
124.5 18.47306
125.5 18.53099
126.5 18.58928
127.5 18.64792
128.5 18.70689
129.5 18.76619
130.5 18.82579
131.5 18.8857
132.5 18.94588
133.5 19.00634
134.5 19.06706
135.5 19.12803
136.5 19.18924
137.5 19.25067
138.5 19.31232
139.5 19.37417
140.5 19.43622
141.5 19.49845
142.5 19.56086
143.5 19.62342
144.5 19.68614
145.5 19.74901
146.5 19.812
147.5 19.87512
148.5 19.93836
149.5 20.0017
150.5 20.06514
151.5 20.12866
152.5 20.19227
153.5 20.25594
154.5 20.31968
155.5 20.38347
156.5 20.44731
157.5 20.51119
158.5 20.5751
159.5 20.63903
160.5 20.70298
161.5 20.76694
162.5 20.8309
163.5 20.89486
164.5 20.9588
165.5 21.02272
166.5 21.08663
167.5 21.15049
168.5 21.21433
169.5 21.27811
170.5 21.34185
171.5 21.40554
172.5 21.46916
173.5 21.53272
174.5 21.5962
175.5 21.65961
176.5 21.72294
177.5 21.78618
178.5 21.84932
179.5 21.91237
180.5 21.97532
181.5 22.03816
182.5 22.10089
183.5 22.1635
184.5 22.226
185.5 22.28837
186.5 22.35061
187.5 22.41272
188.5 22.47469
189.5 22.53652
190.5 22.59821
191.5 22.65976
192.5 22.72115
193.5 22.78239
194.5 22.84346
195.5 22.90438
196.5 22.96514
197.5 23.02572
198.5 23.08614
199.5 23.14638
200.5 23.20645
201.5 23.266