Pregnancy Weight Calculator


Pregnancy Weight Gain Calculator

pregnancy weight gain


Pregnancy Weight Gain Calculator

Weight gain in pregnancy is different for each woman and for each pregnancy. This calculator provides only a general guide to a woman's expected weight gain during her pregnancy. It takes into account her normal height and weight prior to the pregnancy and suggests a range for pregnancy weight gain.

Focus should not be so much on how much weight you gaining but how well you are eating!

How much weight should I gain?  .....  The correct answer is 'It varies.'

You should be gaining weight during your pregnancy, since you are carrying a little one inside you, and it is important for your health, and the health of your baby. The exact amount of weight gain will some-what depend on how much you weighed prior to conception. The pregnancy weight gain calculator will provide you with an estimate on weight gain, however, the charts below are useful.

 

Pregnancy Weight Calculator

 
Enter your pre-pregnancy weight, height, if expecting twins, or a teen mother.
It will then calculate an average pregnancy weight-gain.

  Pre-pregnancy weight

   Automatic Recalculation 

   

 
  Enter Height
  Teen Mother  
  Expecting Twins  
  Pre-pregnancy BMI
  Below Average Above Average Average
Gain   Weight   Gain   Weight   Gain   Weight  
  Week 0 0.00  0.00  0.00 
  Week 2
  Week 4
  Week 6
  Week 8
  Week 10
  Week 12
  Week 14
  Week 16
  Week 18
  Week 20
  Week 22
  Week 24
  Week 26
  Week 28
  Week 30
  Week 32
  Week 34
  Week 36
  Week 38
  Week 40

The 'Pregnancy Weight Calculator' is intended for educational purposes only.
It is not intended to replace any medical advice from your physician,
doctor or health care professional


  

On a Trimester Basis:

  
  • First trimester: 1 pound per month ~ (about 4lb) in the first three months.
  • Second trimester: 1 pound per week for the next three months ~ (12 - 14lb) in total.
  • Third trimester: around 1 pound per week ~ (12lb) over the last three months.

But remember, these are average figures for large numbers of women so just because your weight gain pattern is different, it doesn't mean anything is wrong.

Focus should not be so much on how much weight you are gaining
in pregnancy; but how well you are eating in pregnancy!

It is recommended that women should aim for a weight gain related to their pre-pregnancy BMI:
  • If BMI was above 26, you should aim for a weight gain of between 15 and 25lb (7 and 11.5kg).
  • If BMI was between 20 and 26, you should aim for a weight gain of 25 to 35lb (11.5 to 16kg).
  • If BMI was less than 20, you should aim for a weight gain of 28 to 40lb (12.5 to 18kg).

Calculate your BMI - Body Mass Index
The BMI is calculated and interpreted as follows:
BMI Below 19.8 is Underweight,  BMI = 19.8 to 26 is Normal,
BMI = 26 to 29 is Overweight,   BMI 29 and up is Obese.

Calculate your BMI        Avoirdupois/Imperial (U.S. / UK) » Metric converter
Kilogram (Kg), Gram (g), Stone, Pound (lb), Ounce (oz)
Meter (m), Centimeter (cm), Foot (ft) and Inch (in)

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Pregnancy weight gain charts

Your pre-pregnancy weight ( Pounds )

Heightunderweightnormaloverweight  obese  
5 ft   < 102102-132133-147> 148
5 ft 2 ins  < 107107-141142-157> 158
5 ft 4 ins  < 116116-152153-170> 171
5 ft 6 ins  < 123123-161162-180> 181
5 ft 10 ins< 138138-181182-202> 203

Your gain plan ( Pounds )

if you were . . .underweight  normal  overweight  obese  
reasonable weight gain in Pounds. . .28 - 4025 - 3515 - 25 < 15 

[ Kilos, Kg ? ] Pregnancy weight gain metric charts

Where do the pregnancy Pounds go?

   Maternal stores of nutrients
   and muscle development

7 Pounds
   Increased body fluid4 Pounds
   Increased blood3 - 4 Pounds
   Breast growth1 - 2 Pounds
   Enlarged uterus2 Pounds
   Amniotic fluid2 Pounds
   Placenta1.5 Pounds
   Baby6 - 8 Pounds
   Total26.5 - 30.5 Pounds
Source: American College of Obstetricians and Gynecologists

Pregnancy weight gain metric chart

Your pre-pregnancy weight ( Kilos )

Height underweight normal overweight   obese  
1.52 m   < 46 46 - 60 60 - 66.5 > 67
1.57 m   < 48.5 48.5 - 63.5 63.8 - 71 > 72
1.63 m   < 52.5 52.5 - 68.8 69 - 77 > 77.5
1.68 m   < 55.5 55.6 - 72.8 73 - 81.5 > 82
1.78 m    < 62.5 62.5 - 82 82 - 91.5 > 92

Your gain plan ( Kilos )

if you were . . . underweight   normal   overweight   obese  
reasonable weight gain in Kilos. . . 13 - 18 11 - 16 8 - 12  < 8  

[ Pounds, lb oz ? ] Pregnancy weight gain imperial charts

Where do the pregnancy Kilos go?

   Maternal stores of nutrients
   and muscle development
 
3 Kg
   Increased body fluid 2 Kg
   Increased blood 1.5 - 2 Kg
   Breast growth 600g
   Enlarged uterus 1 Kg
   Amniotic fluid 1 Kg
   Placenta 600g
   Baby 3.4 - 4 Kg
   Total 11 - 16 Kg

On a Trimester Basis:
  • First trimester: Most women put on around 1.6kg in the first three months.
  • Second trimester: around 0.5kg a week for the next three months (5.5 - 6.4kg) in total.
  • Third trimester: and only around 5kg over the last three months.

But remember, these are average figures for large numbers of women so just because your weight gain pattern is different, it doesn't mean anything is wrong.
 


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