Calculate recommended pregnancy weight gain based on your pre-pregnancy BMI. Track progress by week with IOM guidelines and trimester targets for healthy pregnancy.
Rate this tool · 0.0 avg · 0 ratings
Top-rated prenatal vitamins and supplements for mom and baby.
Track nutrition during pregnancy with the top fitness app.
Sponsored · We may earn a commission at no cost to you
Recommended weight gain depends on pre-pregnancy BMI: Underweight (28-40 lbs), Normal weight (25-35 lbs), Overweight (15-25 lbs), Obese (11-20 lbs). Twin pregnancies require more.
Most weight gain occurs in the second and third trimesters (about 1 pound per week). First trimester gain is typically only 2-5 pounds total.
Excessive gain increases risk of gestational diabetes and large babies. Insufficient gain may lead to preterm birth or low birth weight. Talk to your healthcare provider.
The Pregnancy Weight Gain Calculator is a free online tool that lets you track recommended pregnancy weight gain by trimester based on pre-pregnancy bmi guidelines. It is part of NexTool's collection of free tools designed to help you work faster and more efficiently.
Yes, the Pregnancy Weight Gain Calculator is 100% free to use with no limitations. There is no registration required, no daily usage caps, and no hidden fees. You can use it as many times as you need.
The Pregnancy Weight Gain Calculator uses industry-standard formulas and algorithms to deliver reliable results. While the tool is designed for accuracy, results should be used as estimates and guidance. For critical decisions, always consult a qualified professional.
Yes, the Pregnancy Weight Gain Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. Simply open NexTool in your mobile browser and navigate to the tool — no app download required.
No spam. Unsubscribe anytime.
Calculate recommended pregnancy weight gain based on your pre-pregnancy BMI. Track progress by week with IOM guidelines and trimester targets for healthy pregnancy.
NexTool's Pregnancy Weight Gain Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.
Add Pregnancy Weight Gain Calculator to your website. Paste the code below into your HTML. The iframe auto-resizes to fit the tool content.
Analyze ingredient safety with AI
Check 10,000+ ingredients for safety — Pro starts at $9/mo
Get notified about new tools, features, and exclusive deals. No spam, ever.
| BMI Category | BMI Range | Singleton (lbs) | Twins (lbs) |
|---|---|---|---|
| Underweight | < 18.5 | 28-40 | 50-62 |
| Normal | 18.5 - 24.9 | 25-35 | 37-54 |
| Overweight | 25 - 29.9 | 15-25 | 31-50 |
| Obese | >= 30 | 11-20 | 25-42 |
This calculator provides estimates based on the Institute of Medicine (IOM) 2009 guidelines for gestational weight gain. Individual needs may vary significantly.
This is not medical advice. Weight gain during pregnancy is influenced by many factors including pre-existing conditions, maternal age, and individual health circumstances. Always work with your healthcare provider to determine the right weight gain goals for your pregnancy.
Triplet pregnancies use twin guidelines as IOM does not provide separate recommendations for higher-order multiples.