BMI in Pregnancy Calculator
Result
BMI in Pregnancy Calculator Work out your pre-pregnancy BMI and see the recommended weight gain for a healthy pregnancy. Enter your pre-pregnancy weight and height, and this calculator returns your BMI, its category, and the Institute of Medicine (IOM) to — free online calculator.
Formula
- BMI in Pregnancy Calculator calculates its result from Pre, Pregnancy Weight Kg, Height M. It uses the formula BMI = pre-pregnancy weight (kg) ÷ height (m)². Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Pre, Pregnancy Weight Kg, Height M. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: BMI in Pregnancy
- Pre: 2
- Pregnancy Weight Kg: 3
- Height M: 4
Using Pre = 2, Pregnancy Weight Kg = 3, Height M = 4, the calculated result is 1.8125.
Sample result: Calculating…
Frequently asked questions
What does the BMI in Pregnancy calculate?
BMI in Pregnancy Calculator Work out your pre-pregnancy BMI and see the recommended weight gain for a healthy pregnancy. Enter your pre-pregnancy weight and height, and this calculator returns your BMI, its category, and the Institute of Medicine (IOM) to — free online calculator.
Which values should I enter?
Enter Pre, Pregnancy Weight Kg, Height M using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: BMI = pre-pregnancy weight (kg) ÷ height (m)².
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.