Amy & Rose – Pregnancy‑Safe BMI & Weight Gain Calculator

Pregnancy‑Safe BMI & Healthy Weight Gain Guide

Calculate pre‑pregnancy BMI, see adult healthy ranges, and get trimester‑aware, BMI‑specific weight‑gain guidance (singleton or twins). Designed for education, not diagnosis.

1) Units

2) Your Details

Height

Range: 80–250 cm (or 2’8″–8’2″).

Pre‑pregnancy weight

Current weight

We’ll compare current gain vs recommended range.

Status

BMI categories apply to adults who are not pregnant. During pregnancy we use pre‑pregnancy BMI to guide healthy gain.

Gestational week

Weeks since last menstrual period (LMP). Typical range 4–42.

Number of babies

This tool is informational and not a medical diagnosis. Always follow your clinician’s guidance.

Results

Pre‑pregnancy BMI

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Current BMI

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Enter your details and click Calculate.

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