Estimate fetal weight using fundal height measurements and gestational age. Monitor your baby's growth throughout pregnancy.
Enter your values below
Measure from the pubic bone to the top of the uterus.
Current weeks of pregnancy.
How this calculator works
Uses fundal height measurement and gestational age to approximate fetal weight using the Johnson formula.
Common questions about this calculator
Pregnancy calculators provide estimates based on standard formulas. Every pregnancy is unique. Always consult your OB-GYN or midwife for personalized care.