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Data Table of Infant Weight-for-age Charts

Males, Birth - 36 Months
Age (in months)3rd Percentile Weight (in kilograms)5th Percentile Weight (in kilograms)10th Percentile Weight (in kilograms)25th Percentile Weight (in kilograms)50th Percentile Weight (in kilograms)75th Percentile Weight (in kilograms)90th Percentile Weight (in kilograms)95th Percentile Weight (in kilograms)97th Percentile Weight (in kilograms)
02.3554512.5269042.7738023.1506113.5302033.8790774.1724934.3402934.446488
0.52.7995492.9646563.209513.5973964.0031064.3874234.7181614.910135.032625
1.53.6146883.7748494.0205614.4288734.8795255.3273285.7281535.9671026.121929
2.54.3423414.5032554.7544795.1833785.6728896.1755986.6389796.9211197.10625
3.54.9928985.1574125.4168035.8668066.3913926.9422177.4607027.7814017.993878
4.55.5751695.7447526.0137166.4849697.0418367.6353238.2021938.5568138.793444
5.56.0967756.2721756.5513797.0436277.6304258.2620338.8713849.2556159.513307
6.56.564436.7459937.0356567.5483468.1629518.8287869.4754669.88543610.16135
7.56.9841237.1719527.4720218.0043998.6448329.3414910.0210110.4533110.74492
8.57.3612367.5552877.8655338.4167199.081129.80559310.5140610.9657411.27084
9.57.7006247.9007558.2208398.7898829.476510.2261210.9601711.4286811.74538
10.58.0066778.2126848.5421959.128119.83530810.6077211.3644511.8476312.17436
11.58.2833658.4958.8334869.43527910.1615410.9546611.731612.2276612.56308
12.58.5342758.7512649.0982469.71494210.4588511.2708712.0659512.573412.91645
13.58.7626498.9847019.3396889.97033810.7306311.5599612.3714512.8891113.23893
14.58.9714079.1982229.56072210.2044210.9799211.8252412.6517513.1786713.53462
15.59.163189.3944549.76398210.4198611.2095612.0697312.9101513.4456413.80724
16.59.3403289.5757579.9518410.619111.4220712.2961713.1496913.6932514.06019
17.59.5049649.74425110.1264310.8043311.6197812.5070813.3731113.9244414.29655
18.59.6589759.9018310.2896810.9775311.8047812.7047313.582914.1418714.51909
19.59.80403910.0501910.443311.1404711.9789712.8911713.7813314.3479514.73034
20.59.94164510.1908210.5888111.2947712.1440413.0682513.9704214.5448414.93256
21.510.0731110.3250710.7275911.4418512.3015413.2376514.1520114.7344815.12777
22.510.1995710.454110.8608411.5829812.4528313.4008614.3277214.9186115.31777
23.510.3220610.5789510.9896311.719312.5991313.559214.49915.0987615.50418
24.510.4414410.7005111.114911.8518212.7415413.7138614.6671615.276315.68841
25.510.5584710.8195811.2374711.9814212.8810213.865914.8333215.4524215.8717
26.510.673810.9368111.3580612.1088913.0184214.0162314.9984815.6281916.05514
27.510.7879811.052811.4772812.2349113.154514.1656715.1635115.804516.23967
28.510.9014711.1680311.5956712.3600713.289914.3149315.3291715.9821416.42609
29.511.0146611.2829311.7136812.484913.4251914.4646215.496116.1617716.61508
30.511.1278711.3978211.831712.6098313.5608814.6152715.6648516.3439516.8072
31.511.2413511.51311.9500512.7352313.6973814.7673215.8358816.5291517.00291
32.511.355311.6286912.06912.8614413.8350514.9211716.0095816.7177317.2026
33.511.4698811.7450812.1887512.988713.9741815.0771116.1862416.9117.40654
34.511.5852111.862312.3094813.1172314.1150315.2354116.3661217.1061917.61495
35.511.7013711.9804612.4313213.2472114.257815.3962816.549417.3064617.82797
3611.7597812.0399112.4926813.3127814.3299415.4777216.6423717.4081617.93625

 

Females, Birth - 36 Months
Age (in months)3rd Percentile Weight (in kilograms)5th Percentile Weight (in kilograms)10th Percentile Weight (in kilograms)25th Percentile Weight (in kilograms)50th Percentile Weight (in kilograms)75th Percentile Weight (in kilograms)90th Percentile Weight (in kilograms)95th Percentile Weight (in kilograms)97th Percentile Weight (in kilograms)
02.4141122.5479052.7472223.0648653.3991863.7175193.9925724.1526374.254922
0.52.7569172.8944423.1017673.4376283.7975284.1455944.4501264.6288364.743582
1.53.4022933.547613.7701574.1389944.5447774.9467665.3056325.5191695.657379
2.53.9978064.1506394.3870424.784825.2305845.6800836.0876416.3328376.492574
3.54.5473834.7071234.9559265.3791415.8599616.3515126.802777.0767237.256166
4.55.0545395.2204885.4802955.9258886.4375886.9665247.4571197.7572347.95473
5.55.52255.6939745.963516.4288286.967857.530188.0563318.380338.594413
6.55.9542726.1306416.4087756.8915337.4548548.0471788.6056368.9515449.180938
7.56.3526686.5333736.8191227.3173737.9024368.5218779.1098789.4760099.719621
8.56.7203286.9048867.1974147.7095168.3141788.9583249.5735469.9584810.21539
9.57.0597327.2477367.5463428.0709328.6934189.36027110.0007910.4033510.6728
10.57.3732127.5643277.8684368.40449.0432629.73119310.3954510.814711.09607
11.57.6629597.8569168.1660698.7125139.36659410.0743110.7610611.1962511.48908
12.57.931038.1276218.441468.9976929.66608910.3925811.1008911.5514511.85539
13.58.1793568.3784258.6966849.2621859.94422610.6887411.4179211.8834812.19829
14.58.4097448.6111868.933689.50808510.2032910.9653211.7149112.1952212.52078
15.58.6238878.8276389.1542519.73732910.4454111.2246311.9943812.4893412.82561
16.58.823379.0293999.3600799.95171510.6725111.4687812.2586212.7682513.11527
17.59.0096689.217989.55272310.152910.8863911.6997212.5097413.0341513.39204
18.59.184169.3947829.7336310.3424111.0886811.9192112.7496413.2890413.65799
19.59.3481279.561119.9041410.5216711.280912.1288712.9800413.5347313.91497
20.59.502769.7181710.0654910.6919611.464412.3301613.202513.7728414.16467
21.59.6491629.86708110.2188210.8544611.6404312.5243913.4184414.0048414.40858
22.59.78835510.0088710.3651811.0102711.8101412.7127713.6291114.2320514.64807
23.59.92128110.144510.5055311.1603711.9745412.8963613.8356414.4556114.88432
24.510.0488110.2748310.6407611.3056712.1345613.0761314.0390214.6765915.11839
25.510.1717310.4006610.7716711.4469712.2910213.2529314.2401714.8958715.35122
26.510.2907910.5227410.8989911.5850112.4446913.4275314.4398415.1142815.58363
27.510.4066410.6417111.0233811.7204712.5962213.6005914.6387315.3324915.81632
28.510.519910.7581911.1454511.8539212.7462113.7727114.8374315.5511316.0499
29.510.6311210.8727311.2657511.9859212.8951713.944415.0364615.770716.28491
30.510.7407810.9858111.3847412.1169213.0435714.1161115.2362615.9916416.52176
31.510.8493511.0978911.5028812.2473513.1918114.2882215.4371916.2143216.76085
32.510.9572211.2093411.6205412.3775713.3402314.4610615.6395716.4390417.00245
33.511.0647511.3205411.7380612.5079113.4891314.6349115.8436516.6660517.24681
34.511.1722511.4317711.8557412.6386513.6387714.8099816.0496316.8955317.49412
35.511.2811.5433211.9738412.7700113.7893714.9864716.2576717.1276217.7445
3611.3340411.5992912.0331212.83613.8650715.0752916.362517.2446917.87089
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