Birth-36 months: Boys Length-for-Age and Weight-for-Age Percentiles (5th through 95th)

5th Percentile Weight and Height – Males

Age (in months)	Weight (in kilograms)	Height (in centimeters)
0	2.526904	45.56841
0.5	2.964656	48.55809
1.5	3.774849	52.72611
2.5	4.503255	55.77345
3.5	5.157412	58.23744
4.5	5.744752	60.33647
5.5	6.272175	62.18261
6.5	6.745993	63.84166
7.5	7.171952	65.35584
8.5	7.555287	66.75398
9.5	7.900755	68.05675
10.5	8.212684	69.27949
11.5	8.495	70.43397
12.5	8.751264	71.52941
13.5	8.984701	72.57318
14.5	9.198222	73.5713
15.5	9.394454	74.52871
16.5	9.575757	75.44958
17.5	9.744251	76.33742
18.5	9.90183	77.19523
19.5	10.05019	78.0256
20.5	10.19082	78.83077
21.5	10.32507	79.61271
22.5	10.4541	80.37315
23.5	10.57895	81.11363
24.5	10.70051	81.83552
25.5	10.81958	82.58135
26.5	10.93681	83.31105
27.5	11.0528	84.02609
28.5	11.16803	84.72769
29.5	11.28293	85.41688
30.5	11.39782	86.09452
31.5	11.513	86.76134
32.5	11.62869	87.41799
33.5	11.74508	88.06503
34.5	11.8623	88.70301
35.5	11.98046	89.33242
36	12.03991

10th Percentile Weight and Height – Males

Age (in months)	Weight (in kilograms)	Height (in centimeters)
0	2.773802	46.55429
0.5	3.20951	49.4578
1.5	4.020561	53.55365
2.5	4.754479	56.57772
3.5	5.416803	59.0383
4.5	6.013716	61.1441
5.5	6.551379	63.00296
6.5	7.035656	64.67854
7.5	7.472021	66.21181
8.5	7.865533	67.63088
9.5	8.220839	68.95591
10.5	8.542195	70.20192
11.5	8.833486	71.38046
12.5	9.098246	72.50055
13.5	9.339688	73.56946
14.5	9.560722	74.59309
15.5	9.763982	75.57634
16.5	9.95184	76.5233
17.5	10.12643	77.43742
18.5	10.28968	78.32168
19.5	10.4433	79.17863
20.5	10.58881	80.01048
21.5	10.72759	80.81919
22.5	10.86084	81.60646
23.5	10.98963	82.37381
24.5	11.1149	83.12259
25.5	11.23747	83.87245
26.5	11.35806	84.60576
27.5	11.47728	85.32399
28.5	11.59567	86.02833
29.5	11.71368	86.71978
30.5	11.8317	87.39917
31.5	11.95005	88.06723
32.5	12.069	88.72457
33.5	12.18875	89.37177
34.5	12.30948	90.00937
35.5	12.43132	90.63786
36	12.49268

25th Percentile Weight and Height – Males

Age (in months)	Weight (in kilograms)	Height (in centimeters)
0	3.150611	48.18937
0.5	3.597396	50.97919
1.5	4.428873	54.9791
2.5	5.183378	57.9744
3.5	5.866806	60.43433
4.5	6.484969	62.55409
5.5	7.043627	64.43546
6.5	7.548346	66.13896
7.5	8.004399	67.70375
8.5	8.416719	69.15682
9.5	8.789882	70.51761
10.5	9.12811	71.80065
11.5	9.435279	73.01712
12.5	9.714942	74.17581
13.5	9.970338	75.2838
14.5	10.20442	76.34685
15.5	10.41986	77.36973
16.5	10.6191	78.35646
17.5	10.80433	79.31042
18.5	10.97753	80.23453
19.5	11.14047	81.13131
20.5	11.29477	82.00292
21.5	11.44185	82.85129
22.5	11.58298	83.67811
23.5	11.7193	84.48487
24.5	11.85182	85.2729
25.5	11.98142	86.03703
26.5	12.10889	86.78329
27.5	12.23491	87.51317
28.5	12.36007	88.22788
29.5	12.4849	88.9284
30.5	12.60983	89.6156
31.5	12.73523	90.2902
32.5	12.86144	90.95287
33.5	12.9887	91.60421
34.5	13.11723	92.24482
35.5	13.24721	92.87525
36	13.31278

50th Percentile Weight and Height – Males

Age (in months)	Weight (in kilograms)	Height (in centimeters)
0	3.530203	49.98888
0.5	4.003106	52.69598
1.5	4.879525	56.62843
2.5	5.672889	59.60895
3.5	6.391392	62.077
4.5	7.041836	64.21686
5.5	7.630425	66.12531
6.5	8.162951	67.86018
7.5	8.644832	69.45908
8.5	9.08112	70.94804
9.5	9.4765	72.34586
10.5	9.835308	73.66665
11.5	10.16154	74.9213
12.5	10.45885	76.11838
13.5	10.73063	77.2648
14.5	10.97992	78.36622
15.5	11.20956	79.42734
16.5	11.42207	80.45209
17.5	11.61978	81.44384
18.5	11.80478	82.40544
19.5	11.97897	83.33938
20.5	12.14404	84.24783
21.5	12.30154	85.1327
22.5	12.45283	85.99565
23.5	12.59913	86.83818
24.5	12.74154	87.66161
25.5	12.88102	88.45247
26.5	13.01842	89.22326
27.5	13.1545	89.97549
28.5	13.2899	90.71041
29.5	13.42519	91.42908
30.5	13.56088	92.13242
31.5	13.69738	92.82127
32.5	13.83505	93.49638
33.5	13.97418	94.15847
34.5	14.11503	94.80823
35.5	14.2578	95.44637
36	14.32994

75th Percentile Weight and Height – Males

Age (in months)	Weight (in kilograms)	Height (in centimeters)
0	3.879077	51.77126
0.5	4.387423	54.44054
1.5	5.327328	58.35059
2.5	6.175598	61.33788
3.5	6.942217	63.82543
4.5	7.635323	65.99131
5.5	8.262033	67.92935
6.5	8.828786	69.69579
7.5	9.34149	71.32735
8.5	9.805593	72.84947
9.5	10.22612	74.2806
10.5	10.60772	75.63462
11.5	10.95466	76.92224
12.5	11.27087	78.15196
13.5	11.55996	79.33061
14.5	11.82524	80.4638
15.5	12.06973	81.5562
16.5	12.29617	82.61174
17.5	12.50708	83.63377
18.5	12.70473	84.62515
19.5	12.89117	85.58837
20.5	13.06825	86.52562
21.5	13.23765	87.43879
22.5	13.40086	88.32957
23.5	13.5592	89.19948
24.5	13.71386	90.04985
25.5	13.8659	90.8787
26.5	14.01623	91.68468
27.5	14.16567	92.46929
28.5	14.31493	93.23385
29.5	14.46462	93.97951
30.5	14.61527	94.70732
31.5	14.76732	95.41824
32.5	14.92117	96.11319
33.5	15.07711	96.79307
34.5	15.23541	97.45873
35.5	15.39628	98.11108
36	15.47772

90th Percentile Weight and Height – Males

Age (in months)	Weight (in kilograms)	Height (in centimeters)
0	4.172493	53.36153
0.5	4.718161	56.03444
1.5	5.728153	59.9664
2.5	6.638979	62.98158
3.5	7.460702	65.49858
4.5	8.202193	67.69405
5.5	8.871384	69.66122
6.5	9.475466	71.45609
7.5	10.02101	73.11525
8.5	10.51406	74.6641
9.5	10.96017	76.1211
10.5	11.36445	77.50016
11.5	11.7316	78.81202
12.5	12.06595	80.0652
13.5	12.37145	81.2666
14.5	12.65175	82.42185
15.5	12.91015	83.53568
16.5	13.14969	84.61204
17.5	13.37311	85.65431
18.5	13.5829	86.66541
19.5	13.78133	87.64786
20.5	13.97042	88.60385
21.5	14.15201	89.53533
22.5	14.32772	90.44402
23.5	14.499	91.33143
24.5	14.66716	92.19893
25.5	14.83332	93.07143
26.5	14.99848	93.91817
27.5	15.16351	94.74064
28.5	15.32917	95.54016
29.5	15.4961	96.318
30.5	15.66485	97.07531
31.5	15.83588	97.81324
32.5	16.00958	98.53287
33.5	16.18624	99.23531
34.5	16.36612	99.92162
35.5	16.5494	100.5929
36	16.64237

95th Percentile Weight and Height – Males

Age (in months)	Weight (in kilograms)	Height (in centimeters)
0	4.340293	54.30721
0.5	4.91013	56.99908
1.5	5.967102	60.96465
2.5	6.921119	64.00789
3.5	7.781401	66.54889
4.5	8.556813	68.76538
5.5	9.255615	70.75128
6.5	9.885436	72.56307
7.5	10.45331	74.23767
8.5	10.96574	75.80074
9.5	11.42868	77.27095
10.5	11.84763	78.66234
11.5	12.22766	79.98578
12.5	12.5734	81.2499
13.5	12.88911	82.46167
14.5	13.17867	83.6268
15.5	13.44564	84.75006
16.5	13.69325	85.83547
17.5	13.92444	86.88645
18.5	14.14187	87.90595
19.5	14.34795	88.89652
20.5	14.54484	89.86038
21.5	14.73448	90.79951
22.5	14.91861	91.71563
23.5	15.09876	92.61031
24.5	15.2763	93.48491
25.5	15.45242	94.38775
26.5	15.62819	95.263
27.5	15.8045	96.1121
28.5	15.98214	96.93639
29.5	16.16177	97.73717
30.5	16.34395	98.51569
31.5	16.52915	99.27318
32.5	16.71773	100.0109
33.5	16.91	100.73
34.5	17.10619	101.4318
35.5	17.30646	102.1174
36	17.40816