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Pregnancy Weight Gain Calculator

Unsure about how much weight you should expect to gain during pregnancy? Just put your BMI into our handy tool to find the answer that’s right for you.

What was your pre-pregnancy Body Mass Index (BMI*):

Select your BMI:

*HOW TO CALCULATE YOUR BMI:

Weight (lb) x 4.88 / Height2 (ft2) = BMI

(Example: 132 lbs x 4.88 / 5.6 ft x 5.6 ft = 21.3)

Please select BMI to find out

Find out your expected weight gain
WEEKEXPECTED WEIGHT GAIN**
Week 10 - 0 lbs
Week 20.09 - 0.4 lbs
Week 30.2 - 0.7 lbs
Week 40.3 - 1.1 lbs
Week 50.4 - 1.5 lbs
Week 60.5 - 1.8 lbs
Week 70.6 - 2.2 lbs
Week 80.6 - 2.6 lbs
Week 90.7 - 2.9 lbs
Week 100.8 - 3.3 lbs
Week 110.9 - 3.7 lbs
Week 121.0 - 4.0 lbs
Week 131.1 - 4.4 lbs
Week 142.1 - 5.7 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 153.1 - 7.0 lbs
Week 164.1 - 8.4 lbs
Week 175.1 - 9.7 lbs
Week 186.1 - 11.0 lbs
Week 197.1 - 12.3 lbs
Week 208.1 - 13.6 lbs
Week 219.1 - 14.9 lbs
Week 2210.1 - 16.3 lbs
Week 2311.1 - 17.6 lbs
Week 2412.1 - 18.9 lbs
Week 2513.1 - 20.2 lbs
Week 2614.1 - 21.5 lbs
Week 2715.0 - 22.9 lbs
Week 2816.0 - 24.2 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 2917.0 - 25.5 lbs
Week 3018.0 - 26.8 lbs
Week 3119.0 - 28.1 lbs
Week 3220.0 - 29.5 lbs
Week 3321.0 - 30.8 lbs
Week 3422.0 - 32.1 lbs
Week 3523.0 - 33.4 lbs
Week 3624.0 - 34.7 lbs
Week 3725.0 - 36.0 lbs
Week 3826.0 - 37.4 lbs
Week 3927.0 - 38.7 lbs
Week 4028.0 - 40.0 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 10 - 0 lbs
Week 20.09 - 0.4 lbs
Week 30.2 - 0.7 lbs
Week 40.3 - 1.1 lbs
Week 50.4 - 1.5 lbs
Week 60.5 - 1.8 lbs
Week 70.6 - 2.2 lbs
Week 80.6 - 2.6 lbs
Week 90.7 - 2.9 lbs
Week 100.8 - 3.3 lbs
Week 110.9 - 3.7 lbs
Week 121.0 - 4.0 lbs
Week 131.1 - 4.4 lbs
Week 142.1 - 5.5 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 152.9 - 6.7 lbs
Week 163.8 - 7.8 lbs
Week 174.6 - 8.9 lbs
Week 185.5 - 10.1 lbs
Week 196.4 - 11.2 lbs
Week 207.3 - 12.3 lbs
Week 218.2 - 13.5 lbs
Week 229.1 - 14.6 lbs
Week 2310.0 - 15.7 lbs
Week 2410.8 - 16.9 lbs
Week 2511.7 - 18.0 lbs
Week 2612.6 - 19.1 lbs
Week 2713.5 - 20.3 lbs
Week 2814.4 - 21.4 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 2915.3 - 22.5 lbs
Week 3016.1 - 23.7 lbs
Week 3117.0 - 24.8 lbs
Week 3217.9 - 25.9 lbs
Week 3318.8 - 27.1 lbs
Week 3419.7 - 28.2 lbs
Week 3520.6 - 29.3 lbs
Week 3621.5 - 30.5 lbs
Week 3722.3 - 31.6 lbs
Week 3823.2 - 32.7 lbs
Week 3924.1 - 33.9 lbs
Week 4025.0 - 35.0 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 10 - 0 lbs
Week 20.09 - 0.4 lbs
Week 30.2 - 0.7 lbs
Week 40.3 - 1.1 lbs
Week 50.4 - 1.5 lbs
Week 60.5 - 1.8 lbs
Week 70.6 - 2.2 lbs
Week 80.6 - 2.6 lbs
Week 90.7 - 2.9 lbs
Week 100.8 - 3.3 lbs
Week 110.9 - 3.7 lbs
Week 121.0 - 4.0 lbs
Week 131.1 - 4.4 lbs
Week 141.6 - 5.2 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 152.1 - 5.9 lbs
Week 162.6 - 6.7 lbs
Week 173.2 - 7.5 lbs
Week 183.7 - 8.2 lbs
Week 194.2 - 9.0 lbs
Week 204.7 - 9.7 lbs
Week 215.2 - 10.5 lbs
Week 225.7 - 11.3 lbs
Week 236.2 - 12.0 lbs
Week 246.8 - 12.8 lbs
Week 257.3 - 13.6 lbs
Week 267.8 - 14.3 lbs
Week 278.3 - 15.1 lbs
Week 288.8 - 15.8 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 299.3 - 16.6 lbs
Week 309.9 - 17.4 lbs
Week 3110.4 - 18.1 lbs
Week 3210.9 - 18.9 lbs
Week 3311.4 - 19.7 lbs
Week 3411.9 - 20.4 lbs
Week 3512.4 - 21.2 lbs
Week 3612.9 - 21.9 lbs
Week 3713.5 - 22.7 lbs
Week 3814.0 - 23.5 lbs
Week 3914.5 - 24.2 lbs
Week 4015.0 - 25.0 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 10 - 0 lbs
Week 20.09 - 0.4 lbs
Week 30.2 - 0.7 lbs
Week 40.3 - 1.1 lbs
Week 50.4 - 1.5 lbs
Week 60.5 - 1.8 lbs
Week 70.6 - 2.2 lbs
Week 80.6 - 2.6 lbs
Week 90.7 - 2.9 lbs
Week 100.8 - 3.3 lbs
Week 110.9 - 3.7 lbs
Week 121.0 - 4.0 lbs
Week 131.1 - 4.4 lbs
Week 141.5 - 5.0 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 151.8 - 5.6 lbs
Week 162.2 - 6.1 lbs
Week 172.6 - 6.7 lbs
Week 182.9 - 7.3 lbs
Week 193.3 - 7.9 lbs
Week 203.7 - 8.4 lbs
Week 214.0 - 9.0 lbs
Week 224.4 - 9.6 lbs
Week 234.8 - 10.2 lbs
Week 245.1 - 10.8 lbs
Week 255.5 - 11.3 lbs
Week 265.9 - 11.9 lbs
Week 276.2 - 12.5 lbs
Week 286.6 - 13.1 lbs
WEEKEXPECTED WEIGHT GAIN**
Week 297.0 - 13.6 lbs
Week 307.3 - 14.2 lbs
Week 317.7 - 14.8 lbs
Week 328.1 - 15.4 lbs
Week 338.4 - 16.0 lbs
Week 348.8 - 16.5 lbs
Week 359.2 - 17.1 lbs
Week 369.5 - 17.7 lbs
Week 379.9 - 18.3 lbs
Week 3810.3 - 18.8 lbs
Week 3910.6 - 19.4 lbs
Week 4011.0 - 20.0 lbs

**Recommended weight gain is only an estimate. Contact your healthcare provider to monitor your weight during pregnancy.