Week 24, pre-pregnancy BMI 22.77
- Recommended total
- 11.34 kg-15.88 kg
- BMI category
- Healthy weight
- 2nd/3rd trimester rate
- 0.36 kg-0.45 kg/week
Pregnancy Weight Gain Calculator
Use this free pregnancy weight gain calculator to compare current gain, BMI category, and weekly reference rate with singleton pregnancy guideline ranges.
Estimate, not diagnosis Formula notes Example inputs Tab-only history
Formula steps
- Calculate pre-pregnancy BMI from height and pre-pregnancy weight.
- Match BMI category to guideline ranges for singleton pregnancy.
- Compare current gain with the total recommended range.
How to use the Pregnancy Weight Gain Calculator
- Enter the requested measurements, dates, lab values, or workout details.
- Check that the units and formula assumptions match what the tool is asking for.
- Press the calculate button to see the answer, supporting metrics, and formula steps.
- Read the estimate with the health disclaimer in mind, then copy the result if you need it for notes.
What people use it for
Estimate pre-pregnancy BMI category.
Compare current gain with guideline ranges.
View second and third trimester weekly gain references.
Prepare questions for prenatal visits.
Quick examples
Week 24
165 cm, 62 kg to 70 kg8 kg gained; normal-BMI total range 11.34-15.88 kg
Week 30
170 cm, 78 kg to 86 kg8 kg gained; overweight total range 6.8-11.34 kg
Week 18
160 cm, 52 kg to 57 kg5 kg gained; normal-BMI total range 11.34-15.88 kg
Need the guide or a nearby tool?
Need a slower walkthrough, a related calculator, or the full library? These links keep you close to the task you started.
- How to use the Pregnancy Weight Gain Calculator See slower examples, input meanings, formula notes, result limits, and mistakes to avoid.
- Health & Fitness Browse related calculators and utilities in the same category.
- Calculator and utility guides Find more guides that use real tool inputs and example numbers.
- All free tools Search every live tool, converter, calculator, AI helper, and browser utility.
Frequently asked questions
Plain-language answers about when to use the estimate, what the formula means, what it cannot decide for you, and how privacy works.
When should I use the Pregnancy Weight Gain Calculator?
Use it for simple educational checks, trend tracking, or planning tasks like these: Estimate pre-pregnancy BMI category. Compare current gain with guideline ranges. It can help you understand a number, but it cannot explain your whole health situation.
What do the main Pregnancy Weight Gain Calculator inputs mean?
Enter pre-pregnancy height and weight, current weight, and the pregnancy week. This calculator uses singleton pregnancy guideline ranges based on pre-pregnancy BMI. If you are carrying twins or more, have a high-risk pregnancy, have fluid retention, or were given a personal target by your care team, use that clinical guidance instead of this general estimate.
What is the Pregnancy Weight Gain Calculator doing with my inputs?
In plain language: The calculator finds pre-pregnancy BMI from height and pre-pregnancy weight, matches that BMI category to singleton pregnancy total gain ranges, subtracts pre-pregnancy weight from current weight, and shows second/third trimester weekly reference rates. Read the result together with the notes on the page, because health and fitness numbers often need personal context.
How should I read the Pregnancy Weight Gain Calculator result?
Read the total range as a prenatal-care reference, not a grade or diet rule. Healthy gain can be uneven by week, and your care team may care more about fetal growth, blood pressure, swelling, nausea, diabetes, or other medical details than the calculator line alone.
Does this work for twins or triplets?
No. The calculator uses singleton pregnancy ranges. CDC lists separate twin ranges for normal, overweight, and BMI 30-39.9 categories, and triplets or higher-order pregnancies need care-team guidance.
What BMI ranges are used?
It uses pre-pregnancy BMI groups: underweight below 18.5, healthy weight 18.5-24.9, overweight 25.0-29.9, and BMI 30 or higher. The displayed kg ranges come from the pound-based guideline ranges converted to kilograms.
Should I try to lose weight during pregnancy if I am above the range?
Do not start weight-loss dieting or restrict food because of this calculator. Bring the number to your OB-GYN, midwife, or qualified clinician so they can consider fetal growth, symptoms, nutrition, and your medical history.
Why can my weekly gain look uneven?
Pregnancy weight can move unevenly because of nausea, appetite changes, constipation, fluid shifts, swelling, and fetal growth timing. The weekly rate is a reference for the second and third trimesters, not a daily rule.
Can I use this as medical advice?
No. This page provides an educational estimate only. Talk with a qualified health professional before making medical, pregnancy, nutrition, medication, or safety decisions. Use the calculator as a learning tool, then ask a qualified professional about decisions that affect care, pregnancy, medication, nutrition, or safety.
What should I double-check before trusting the result?
Check the units, date, and personal details before reading the answer. For example, pounds and kilograms, inches and centimeters, or a wrong activity level can change the result quickly. If the number feels surprising, rerun it slowly and compare it with the examples.
Does the site save my health inputs?
No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.