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GROW Centile Calculator
Global v2.1.6.3

Information outcome
Maternal Height (cm)
For conversion calculator from feet and inches, please click here.
cm
Information outcome
Maternal Weight (kg)
'Booking' = early pregnancy / first visit
For conversion calculator from stone and pounds, please click here.
kg
Information ethnicity
'Ethnic Origin' describes where the family originates from, as distinct from place of birth. The categories listed below have coefficients based on supplied databases.
RegionCountry
United KingdomEngland, Northern Ireland, Scotland, Wales
East Europe Albania, Armenia, Azerbaijan, Belarus, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, East Europe - Jewish, Estonia, Georgia, Hungary, Kosovo, Latvia, Lithuania, Macedonia, Moldova, Montenegro, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, Ukraine
North EuropeDenmark, Finland, Iceland, Norway, Sweden
South EuropeCyprus, Gibraltar, Greece, Italy, Malta, Portugal, Spain, Vatican City
West Europe Andorra, Austria, Belgium, France, Germany, Ireland, Liechtenstein, Luxembourg, Monaco, Netherlands, San Marino, Switzerland
North AfricaAlgeria, Egypt, Libya, Morocco, Sudan, Tunisia
East AfricaBurundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Mauritius, Rwanda, Somalia, Tanzania, Uganda
Central AfricaCameroon, Central African Republic, Chad, Congo, Congo - Democratic Republic of, Equatorial Guinea, Gabon, Sao Tome and Principe, South Sudan
West Africa Benin, Burkina Faso, Cape Verde, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria - Bini, Nigeria - Igbo, Nigeria - Yoruba, Senegal, Sierra Leone, Togo
Southern Africa Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa - African, South Africa - European, South Africa - Mixed, Swaziland, Zambia, Zimbabwe
Far East AsiaChina, Japan, North Korea, South Korea, Taiwan
Middle East Bahrain, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates, Yemen
Central AsiaAfghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Tajikistan, Turkmenistan, Uzbekistan
South AsiaBangladesh, Bhutan, India, Maldives, Nepal, Pakistan, Sri Lanka
South East Asia Brunei, Cambodia, East Timor, Indonesia, Laos, Malaysia - Chinese, Malaysia - Dayak, Malaysia - Indian, Malaysia - Malay, Myanmar, Philippines, Singapore, Thailand, Vietnam
North AmericaCanada, Mexico, US - African American, US - European, US - Hispanic, US - Native American, US - Pacific Islander
Central / South America Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Nicaragua, Panama, Paraguay, Peru, Suriname, Uruguay, Venezuela
CaribbeanAntigua and Barbuda, Antilles, Bahamas, Barbados, Belize, Cuba, Dominica, Dominican Republic, Grenada, Haiti, Jamaica, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago
AustralasiaAustralia - Aboriginal, Australia - European, New Zealand - European, New Zealand - Maori, Papua New Guinea
Pacific IslandsCook Islands, Fiji, French Polynesia, Kiribati, Marshall Islands, Micronesia (Federated States), Nauru, New Caledonia, Niue, Palau, Samoa, Solomon Islands, Tonga, Torres Strait Islands, Tuvalu, Vanuatu
Information outcome
Parity
Number of previous pregnancies resulting in live or stillborn deliveries past 24+0 weeks.
NB Twins = same parity as the term relates to number of pregnancies, not babies.
Information ethnicity
TOW
The Term Optimal Weight is the weight which is expected to be reached at 280 days (40+0 weeks) in an ideal, uncomplicated pregnancy.
g
     
Information outcome
Outcome
For stillbirths / intrauterine fetal death, the calculator adjusts the gestational age by deducting 2 days as the average estimated delay from fetal death to delivery. *
Late fetal loss relates to a dead fetus delivered between 20+0 and 23+6 weeks

* Gardosi J, Mul T, Mongelli M, Fagan D. Analysis of birthweight and gestational age in antepartum stillbirths.
BJOG 1998;105(5):524–530.
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