⚖️ Pregnancy Weight Gain Calculator
Know exactly how much weight gain is healthy — trimester by trimester, based on your pre-pregnancy BMI
The recommended total pregnancy weight gain for a woman with normal pre-pregnancy BMI (18.5–24.9) is 11.5–16 kg, as per WHO guidelines followed by Indian gynaecologists. Underweight women should gain 12.5–18 kg; overweight women should gain 7–11.5 kg. Weight gain is slowest in the first trimester (1–2 kg total) and fastest in the third.
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📊 Your Week-by-Week Gain vs Target
📅 Trimester Targets
| Trimester | Weeks | Weekly Gain | Total Gain |
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🍼 Where Does the Weight Go?
💡 Pregnancy Nutrition Tips
Dairy daily — 2–3 servings of curd, paneer, or milk provide calcium and protein. Essential from week 20 onwards for baby's bones.
Dal at every meal — Moong, masoor, chana dal are protein powerhouses. Aim for 70–80 g protein per day in the second trimester.
Iron-rich greens — Spinach, methi, amaranth leaves paired with vitamin C (lemon) help prevent anaemia — very common in Indian pregnancies.
Healthy snacking — Makhana, roasted chana, dates, and seasonal fruits keep energy stable between meals without excess calories.
❓ Frequently Asked Questions
How much weight should I gain during pregnancy?
It depends on your pre-pregnancy BMI. Underweight: 12.5–18 kg · Normal: 11.5–16 kg · Overweight: 7–11.5 kg · Obese: 5–9 kg (IOM guidelines).
Is it normal to lose weight in the first trimester?
Yes. Losing 1–2 kg due to morning sickness is common and generally fine, as long as you stay hydrated and resume gaining by week 14.
When does most weight gain happen?
About 60–70% of weight gain happens in the 2nd and 3rd trimesters at ~0.4–0.5 kg per week. The first trimester total gain is only 0.5–2 kg.
What if I'm gaining too fast or too slow?
Talk to your doctor. Gaining too fast can increase risk of gestational diabetes and high blood pressure. Gaining too little can affect baby's growth. Both are manageable with dietary adjustments.