Compare current gain with the guideline band for your gestational week and pre-pregnancy BMI.
Recommended Gain by This Week
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Enter pre-pregnancy weight, current weight, height, units, and gestational week to estimate the guideline range.
Tap an example to prefill the calculator with sample values.
Normal-weight second trimester
145 lb pre-pregnancy, 64 in tall, currently 160 lb at week 28
A common singleton-pregnancy check where the goal is to compare current gain against the guideline band by week.
Result: The calculator compares actual gain with the week-specific guideline range instead of only the final delivery target.
Metric entry in early third trimester
68 kg pre-pregnancy, 170 cm, now 76 kg at week 30
Useful when entering clinician-facing measurements in metric rather than converting first.
Result: The recommended range is shown in the selected unit while the BMI category still follows the same guideline cutoffs.
Higher-BMI first trimester
190 lb pre-pregnancy, 64 in, now 193 lb at week 12
Early-pregnancy checks are usually more about broad range placement than a narrow week-by-week target.
Result: First-trimester guidance is much wider and less linear than later weekly pacing.