Boys Weight-for-length (3rd through 97th percentiles)

3rd Percentile

Length (in centimeters) Weight (in kilograms)
45 1.597029
45.5 1.702957
46.5 1.918742
47.5 2.139283
48.5 2.364026
49.5 2.592431
50.5 2.823967
51.5 3.058104
52.5 3.294322
53.5 3.53211
54.5 3.770975
55.5 4.010448
56.5 4.250088
57.5 4.489486
58.5 4.728267
59.5 4.966097
60.5 5.202677
61.5 5.437748
62.5 5.671089
63.5 5.902516
64.5 6.131881
65.5 6.359068
66.5 6.583998
67.5 6.806616
68.5 7.026901
69.5 7.244856
70.5 7.46051
71.5 7.673914
72.5 7.88514
73.5 8.094285
74.5 8.301459
75.5 8.506795
76.5 8.710439
77.5 8.912556
78.5 9.113322
79.5 9.312931
80.5 9.511587
81.5 9.709506
82.5 9.906918
83.5 10.10406
84.5 10.30118
85.5 10.49853
86.5 10.69638
87.5 10.89501
88.5 11.09468
89.5 11.29567
90.5 11.49829
91.5 11.70281
92.5 11.90954
93.5 12.11877
94.5 12.33079
95.5 12.54591
96.5 12.76442
97.5 12.98661
98.5 13.21277
99.5 13.4432
100.5 13.67815
101.5 13.9179
102.5 14.1627
103.5 14.41278

5th Percentile

Length (in centimeters) Weight (in kilograms)
45 1.690594
45.5 1.792955
46.5 2.003061
47.5 2.219514
48.5 2.441422
49.5 2.667982
50.5 2.898464
51.5 3.132187
52.5 3.368517
53.5 3.60686
54.5 3.846658
55.5 4.087392
56.5 4.328585
57.5 4.569795
58.5 4.810625
59.5 5.050717
60.5 5.289754
61.5 5.52746
62.5 5.763596
63.5 5.997962
64.5 6.230396
65.5 6.460765
66.5 6.688975
67.5 6.914958
68.5 7.138676
69.5 7.360121
70.5 7.579308
71.5 7.796275
72.5 8.011085
73.5 8.223823
74.5 8.434591
75.5 8.643512
76.5 8.850726
77.5 9.056391
78.5 9.260678
79.5 9.463776
80.5 9.665884
81.5 9.867216
82.5 10.068
83.5 10.26846
84.5 10.46885
85.5 10.66943
86.5 10.87044
87.5 11.07217
88.5 11.27489
89.5 11.47887
90.5 11.68439
91.5 11.89175
92.5 12.10123
93.5 12.31313
94.5 12.52772
95.5 12.74531
96.5 12.96617
97.5 13.19061
98.5 13.41889
99.5 13.65129
100.5 13.88809
101.5 14.12954
102.5 14.3759
103.5 14.62739

10th Percentile

Length (in centimeters) Weight (in kilograms)
45 1.830303
45.5 1.928805
46.5 2.132607
47.5 2.344442
48.5 2.563171
49.5 2.787763
50.5 3.017289
51.5 3.250908
52.5 3.487856
53.5 3.727435
54.5 3.969008
55.5 4.211993
56.5 4.45586
57.5 4.700128
58.5 4.944362
59.5 5.188173
60.5 5.431217
61.5 5.67319
62.5 5.913829
63.5 6.152907
64.5 6.390239
65.5 6.625668
66.5 6.859076
67.5 7.090373
68.5 7.3195
69.5 7.546426
70.5 7.771148
71.5 7.993688
72.5 8.214092
73.5 8.432429
74.5 8.648791
75.5 8.863288
76.5 9.076053
77.5 9.287233
78.5 9.496996
79.5 9.705524
80.5 9.913012
81.5 10.11967
82.5 10.32573
83.5 10.53141
84.5 10.73696
85.5 10.94264
86.5 11.1487
87.5 11.35541
88.5 11.56304
89.5 11.77186
90.5 11.98216
91.5 12.19422
92.5 12.40832
93.5 12.62473
94.5 12.84375
95.5 13.06565
96.5 13.2907
97.5 13.51919
98.5 13.75137
99.5 13.98752
100.5 14.22789
101.5 14.47272
102.5 14.72227
103.5 14.97676

25th Percentile

Length (in centimeters) Weight (in kilograms)
45 2.053702
45.5 2.149314
46.5 2.348353
47.5 2.556834
48.5 2.773594
49.5 2.997515
50.5 3.227549
51.5 3.462736
52.5 3.702195
53.5 3.94513
54.5 4.190816
55.5 4.438598
56.5 4.687883
57.5 4.938134
58.5 5.188867
59.5 5.439648
60.5 5.690087
61.5 5.939837
62.5 6.188595
63.5 6.436094
64.5 6.682104
65.5 6.926433
66.5 7.168923
67.5 7.409447
68.5 7.647914
69.5 7.884259
70.5 8.118452
71.5 8.350489
72.5 8.580393
73.5 8.808215
74.5 9.034032
75.5 9.257943
76.5 9.48007
77.5 9.700557
78.5 9.919568
79.5 10.13728
80.5 10.3539
81.5 10.56964
82.5 10.78473
83.5 10.9994
84.5 11.2139
85.5 11.4285
86.5 11.64347
87.5 11.85907
88.5 12.07558
89.5 12.29329
90.5 12.51247
91.5 12.73341
92.5 12.95639
93.5 13.18168
94.5 13.40955
95.5 13.64028
96.5 13.87412
97.5 14.11134
98.5 14.35217
99.5 14.59685
100.5 14.84563
101.5 15.09871
102.5 15.35633
103.5 15.61869

50th Percentile

Length (in centimeters) Weight (in kilograms)
45 2.289758
45.5 2.386172
46.5 2.587098
47.5 2.797953
48.5 3.01768
49.5 3.245226
50.5 3.479568
51.5 3.71974
52.5 3.964838
53.5 4.214033
54.5 4.466563
55.5 4.721731
56.5 4.978904
57.5 5.237505
58.5 5.497009
59.5 5.75694
60.5 6.016867
61.5 6.276401
62.5 6.535196
63.5 6.792942
64.5 7.04937
65.5 7.304249
66.5 7.557382
67.5 7.80861
68.5 8.05781
69.5 8.304892
70.5 8.549803
71.5 8.79252
72.5 9.033055
73.5 9.271449
74.5 9.507774
75.5 9.742129
76.5 9.974642
77.5 10.20546
78.5 10.43477
79.5 10.66275
80.5 10.88963
81.5 11.11563
82.5 11.34101
83.5 11.56604
84.5 11.79097
85.5 12.01611
86.5 12.24174
87.5 12.46816
88.5 12.69567
89.5 12.92459
90.5 13.1552
91.5 13.38782
92.5 13.62274
93.5 13.86026
94.5 14.10065
95.5 14.3442
96.5 14.59115
97.5 14.84177
98.5 15.09629
99.5 15.35493
100.5 15.6179
101.5 15.88539
102.5 16.1576
103.5 16.43469

75th Percentile

Length (in centimeters) Weight (in kilograms)
45 2.515339
45.5 2.615766
46.5 2.824925
47.5 3.044241
48.5 3.272646
49.5 3.509104
50.5 3.752613
51.5 4.002224
52.5 4.25704
53.5 4.516224
54.5 4.779003
55.5 5.04466
56.5 5.312536
57.5 5.582027
58.5 5.852575
59.5 6.123672
60.5 6.394852
61.5 6.665693
62.5 6.935815
63.5 7.204879
64.5 7.472584
65.5 7.738675
66.5 8.002935
67.5 8.265185
68.5 8.525292
69.5 8.783156
70.5 9.038722
71.5 9.291971
72.5 9.542919
73.5 9.791619
74.5 10.03816
75.5 10.28266
76.5 10.52527
77.5 10.76616
78.5 11.00555
79.5 11.24366
80.5 11.48074
81.5 11.71706
82.5 11.95292
83.5 12.18862
84.5 12.42449
85.5 12.66085
86.5 12.89804
87.5 13.13642
88.5 13.37634
89.5 13.61816
90.5 13.86223
91.5 14.10891
92.5 14.35855
93.5 14.61149
94.5 14.86807
95.5 15.1286
96.5 15.3934
97.5 15.66275
98.5 15.93692
99.5 16.21616
100.5 16.5007
101.5 16.79074
102.5 17.08647
103.5 17.38804

90th Percentile

Length (in centimeters) Weight (in kilograms)
45 2.710847
45.5 2.817045
46.5 3.038263
47.5 3.270147
48.5 3.511467
49.5 3.761072
50.5 4.017882
51.5 4.280885
52.5 4.549132
53.5 4.821742
54.5 5.097891
55.5 5.376818
56.5 5.657821
57.5 5.940251
58.5 6.223516
59.5 6.507073
60.5 6.790428
61.5 7.073138
62.5 7.354808
63.5 7.635088
64.5 7.913678
65.5 8.190324
66.5 8.464818
67.5 8.736999
68.5 9.006749
69.5 9.273997
70.5 9.538712
71.5 9.800906
72.5 10.06063
73.5 10.31798
74.5 10.57307
75.5 10.82606
76.5 11.07716
77.5 11.32658
78.5 11.57457
79.5 11.82142
80.5 12.06742
81.5 12.31291
82.5 12.55822
83.5 12.80374
84.5 13.04983
85.5 13.2969
86.5 13.54536
87.5 13.79564
88.5 14.04815
89.5 14.30335
90.5 14.56167
91.5 14.82356
92.5 15.08946
93.5 15.35982
94.5 15.63508
95.5 15.91565
96.5 16.20197
97.5 16.49444
98.5 16.79345
99.5 17.09937
100.5 17.41255
101.5 17.7333
102.5 18.06192
103.5 18.39868

95th Percentile

Length (in centimeters) Weight (in kilograms)
45 2.824861
45.5 2.935329
46.5 3.165635
47.5 3.407201
48.5 3.658641
49.5 3.918675
50.5 4.186113
51.5 4.459846
52.5 4.738836
53.5 5.02212
54.5 5.308799
55.5 5.598043
56.5 5.889087
57.5 6.18123
58.5 6.473835
59.5 6.766328
60.5 7.058196
61.5 7.348985
62.5 7.638301
63.5 7.925804
64.5 8.211214
65.5 8.494298
66.5 8.77488
67.5 9.052831
68.5 9.32807
69.5 9.600563
70.5 9.870317
71.5 10.13738
72.5 10.40185
73.5 10.66385
74.5 10.92355
75.5 11.18113
76.5 11.43684
77.5 11.69094
78.5 11.94372
79.5 12.19549
80.5 12.4466
81.5 12.69742
82.5 12.94833
83.5 13.19976
84.5 13.45214
85.5 13.70591
86.5 13.96154
87.5 14.21951
88.5 14.48032
89.5 14.74447
90.5 15.01249
91.5 15.28489
92.5 15.56221
93.5 15.84499
94.5 16.13377
95.5 16.42909
96.5 16.7315
97.5 17.04155
98.5 17.35976
99.5 17.68666
100.5 18.02279
101.5 18.36864
102.5 18.72469
103.5 19.09143

97th Percentile

Length (in centimeters) Weight (in kilograms)
45 2.897809
45.5 3.011338
46.5 3.24824
47.5 3.496935
48.5 3.755928
49.5 4.023835
50.5 4.299369
51.5 4.581326
52.5 4.868586
53.5 5.160095
54.5 5.454877
55.5 5.752027
56.5 6.050711
57.5 6.350174
58.5 6.649733
59.5 6.948783
60.5 7.246792
61.5 7.543303
62.5 7.837924
63.5 8.130333
64.5 8.420274
65.5 8.707544
66.5 8.991999
67.5 9.273547
68.5 9.552146
69.5 9.827798
70.5 10.10055
71.5 10.37048
72.5 10.63773
73.5 10.90245
74.5 11.16484
75.5 11.42513
76.5 11.68357
77.5 11.94047
78.5 12.19614
79.5 12.45094
80.5 12.70522
81.5 12.95941
82.5 13.21392
83.5 13.46919
84.5 13.7257
85.5 13.98393
86.5 14.2444
87.5 14.50763
88.5 14.77417
89.5 15.04457
90.5 15.31941
91.5 15.5993
92.5 15.88482
93.5 16.17661
94.5 16.4753
95.5 16.78152
96.5 17.09595
97.5 17.41925
98.5 17.7521
99.5 18.09519
100.5 18.44921
101.5 18.81488
102.5 19.19291
103.5 19.584
Page last reviewed: August 23, 2001