Calculator for customised birth weight at term and optimal fetal weight according to gestation. This calculator works off-line. (IE4)

Programme written by DJR Hutchon.

Maternal weight at booking = 40kgs=6st 4lbs41kgs=6st 6lbs42kgs=6st 8lbs43kgs=6st 10lbs44kgs=6st13lbs45kgs=7st 1lbs46kgs=7st 3lbs47kgs=7st 5lbs48kgs=7st 7lbs49kgs=7st 10lbs50kgs=7st 12lbs51kgs=8st 0lbs52kgs=8st 2lbs53kgs=8st 4lbs54kgs=8st 7lbs55kgs=8st 9lbs56kgs=8st 11lbs57kgs=8st 13lbs58kgs=9st 1lbs59kgs=9st 4lbs60kgs=9st 6lbs61kgs=9st 8lbs62kgs=9st 10lbs63kgs=9st 12lbs64kgs=10st 1lbs65kgs=10st 3lbs66kgs=10st 5lbs67kgs=10st 7lbs68kgs=10st 9lbs69kgs=10st 12lbs70kgs=11st 0lbs71kgs=11st 2lbs72kgs=11st 4lbs73kgs=11st 6lbs74kgs=11st 9lbs75kgs=11st 11lbs76kgs=11st 13lbs77kgs=12st 1lbs78kgs=12st 3lbs79kgs=12st 6lbs80kgs=12st 8lbs81kgs=12st 10lbs82kgs=12st 12lbs83kgs=13st 0lbs84kgs=13st 3lbs85kgs=13st 5lbs86kgs=13st 7lbs87kgs=13st 9lbs88kgs=13st 12lbs89kgs=14st 0lbs90kgs=14st 2lbs91kgs=14st 4lbs92kgs=14st 6lbs93kgs=14st 9lbs94kgs=14st 11lbs95kgs=14st 13lbs96kgs=15st 1lbs97kgs=15st 3lbs98kgs=15st 6lbs99kgs=15st 8lbs100kgs=15st 10lbs101kgs=15st 12lbs102kgs=16st 0lbs103kgs=16st 3lbs104kgs=16st 5lbs105kgs=16st 7lbs106kgs=16st 9lbs107kgs=16st 11lbs108kgs=17st 0lbs109kgs=17st 2lbs110kgs=17st 4lbs111kgs=17st 6lbs112kgs=17st 8lbs113kgs=17st 11lbs114kgs=17st 13lbs115kgs=18st 1lbs116kgs=18st 3lbs117kgs=18st 5lbs118kgs=18st 8lbs119kgs=18st 10lbs120kgs=18st 12lbs121kgs=19st 0lbs122kgs=19st 2lbs123kgs=19st 5lbs124kgs=19st 7lbs125kgs=19st 9lbs126kgs=19st 11lbs127kgs=19st 13lbs128kgs=20st 2lbs129kgs=20st 4lbs130kgs=20st 6lbs131kgs=20st 8lbs132kgs=20st 11lbs133kgs=20st 13lbs134kgs=21st 1lbs135kgs=21st 3lbs136kgs=21st 5lbs137kgs=21st 8lbs138kgs=21st 10lbs139kgs=21st 12lbs140kgs=22st 0lbs141kgs=22st 2lbs142kgs=22st 5lbs143kgs=22st 7lbs144kgs=22st 9lbs145kgs=22st 11lbs146kgs=22st 13lbs147kgs=23st 2lbs148kgs=23st 4lbs149kgs=23st 6lbs150kgs=23st 8lbs       Maternal height = 140cm=4ft 7ins141cm=4ft 7ins142cm=4ft 7ins143cm=4ft 8ins144cm=4ft 8ins145cm=4ft 9ins146cm=4ft 9ins147cm=4ft 9ins148cm=4ft 10ins149cm=4ft 10ins150cm=4ft 11ins151cm=4ft 11ins152cm=4ft 11ins153cm=5ft 0ins154cm=5ft 0ins155cm=5ft 1ins156cm=5ft 1ins157cm=5ft 1ins158cm=5ft 2ins159cm=5ft 2ins160cm=5ft 2ins161cm=5ft 3ins162cm=5ft 3ins163cm=5ft 4ins164cm=5ft 4ins165cm=5ft 4ins166cm=5ft 5ins167cm=5ft 5ins168cm=5ft 6ins169cm=5ft 6ins170cm=5ft 6ins171cm=5ft 7ins172cm=5ft 7ins173cm=5ft 8ins174cm=5ft 8ins175cm=5ft 8ins176cm=5ft 9ins177cm=5ft 9ins178cm=5ft 10ins179cm=5ft 10ins180cm=5ft 10ins181cm=5ft 11ins182cm=5ft 11ins183cm=6ft 0ins184cm=6ft 0ins185cm=6ft 0ins186cm=6ft 1ins187cm=6ft 1ins188cm=6ft 2ins189cm=6ft 2ins190cm=6ft 2ins191cm=6ft 3ins192cm=6ft 3ins193cm=6ft 3ins194cm=6ft 4ins195cm=6ft 4ins196cm=6ft 5ins197cm=6ft 5ins198cm=6ft 5ins199cm=6ft 6ins200cm=6ft 6ins
Fetal sex (m/f) (if not known leave blank)       Parity
Ethnicity = Anglo-EuropeanIndianPakistaniBangladeshiAfro-CaribbeanAfricanMiddle-EasternFar East AsianSouth East Asian

Calculated optimal birth weight at term     = gm 10th to 90th centile gm

Enter specific gestation to obtain estimated optimal fetal weight at that gestation
GESTATION Weeks = + days = is         gm 10th to 90th centile gm
Expected fundal height cms 10th to 90th centiles

References Gardosi J, Mongelli M, Chang A. An adjustable fetal weight standard. Ultrasound Obstet Gynecol 1995;6:168-174
http://www.gestation.net
See also CESDI 8th annual Report (2001). www.cesdi.org.uk

This calculator is for educational use. It is believed to accurately apply the method of the above paper but no responsibility for accuracy of the results is accepted by the author. David J R Hutchon BSc, MB, ChB, FRCOG Consultant Gynaecologist, Memorial Hospital, Darlington, England.
You are welcome to keep this page and use the calculator off-line. I would appreciate an E-mail if you find it useful enough to do so. E-mail to me at DJRHutchon@Postmaster.co.uk