AnthroCalc3.4.1 - App Store

The AnthroCalc app calculates percentiles and Z-scores for length/height, weight, weight-for-length/height, body-mass index, and head circumference for typically growing children (using WHO or CDC references); for children with a number of syndromes (Turner, Down, Prader-Willi, Russell-Silver, Noonan and Klinefelter); and for preterm infants (using Fenton 2013 and 2025, INTERGROWTH-21st, or Olsen references). The app also performs specialized calculations of blood pressure (using NIH 2004 or AAP 2017 references), extended obesity measures, waist circumference, arm circumference, triceps and subscapular skinfolds, mid-parental/target height, predicted adult height, and height velocity for healthy children. Citations are provided for each reference range used for the calculations.

Version History Improved UI. 3.4.1 Sep 24 Have added calculations for the classical Tanner mid-parental height formula to the “Mid-parental | Target Height” screen. 3.4.0 Aug 19 Updated Privacy Policy. Have added the ability to calculate the eGFR (using the iCARES formula) for children 10–18 years of age with BMI ≥85th centile on the “Obesity” screen. 3.1.2 Jun 15 Updated Privacy Policy. Have added the ability to calculate the eGFR (using the iCARES formula) for children 10–18 years of age with BMI ≥85th centile on the “Obesity” screen. 3.1.1 Jun 7 Updated Privacy Policy. Have added the ability to calculate the eGFR (using the iCARES formula) for children 10–18 years of age with BMI ≥85th centile on the “Obesity” screen. 3.1.0 Jun 2 Improved age calculation. 3.0.2 Feb 9 Have added new growth charts for boys with Klinefelter syndrome from Davis SM, et al. Pediatrics 2025;156(6):e2025072193. Some UI improvements. 3.0.1 Jan 26 Have added the ability to enter age either with dates or directly to all screens. Improved UI and speed. Updated copyright. 3.0.0 Jan 19 On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Have added the ability to directly enter the age (years, months and days) on the “WHO” and “CDC” screens, instead of having to enter date of birth and date of measurement (which is still the default). Have made some calculation speed enhancements in “WHO,” “CDC,” and “Predicted Adult Height” screens. 2.12.4 12/06/2025 On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Have added the ability to directly enter the age (years, months and days) on the “WHO” and “CDC” screens, instead of having to enter date of birth and date of measurement (which is still the default). Have made some calculation speed enhancements in “WHO,” “CDC,” and “Predicted Adult Height” screens. 2.12.3 12/04/2025 On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Have added the ability to directly enter the age (years, months and days) on the “WHO” and “CDC” screens, instead of having to enter date of birth and date of measurement (which is still the default). Will continue to do this on other screens with time. Have made some small bug fixes in “Predicted Adult Height” screen. 2.12.2 11/22/2025 On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Have added the ability to directly enter the age (years, months and days) on the “WHO” and “CDC” screens, instead of having to enter date of birth and date of measurement (which is still the default). Will continue to do this on other screens with time. Have made some small bug fixes in “Predicted Adult Height” screen. 2.12.1 11/18/2025 On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Have added the ability to directly enter the age (years, months and days) on the “WHO” and “CDC” screens, instead of having to enter date of birth and date of measurement (which is still the default). Will continue to do this on other screens with time. Have made some small bug fixes in “Predicted Adult Height” screen. 2.12.0 11/17/2025 On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Minor improvement tweaks. 2.11.1 11/11/2025 On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Minor improvement tweaks. 2.11.0 11/10/2025 Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed minor calculation bugs for several screens. 2.10.5 09/28/2025 Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed minor calculation bugs for several screens. 2.10.4 09/23/2025 Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed a minor calculation bug for this. 2.10.3 09/18/2025 Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed a minor calculation big for this. 2.10.2 09/17/2025 Have added the 2025 (third-generation) Fenton Preterm Growth Charts. 2.10.1 06/24/2025 Have added the 2025 (third-generation) Fenton Preterm Growth Charts. 2.10.0 06/22/2025 Updated support website. 2.9.1 05/12/2025 Have improved readability and uniform appearance of screens. Minor bug fixes. Now remembers choice of exact or direct gestational age input on the premature infant screens from previous session. 2.9.0 03/13/2025 Updated copyright. 2.7.3 01/02/2025 Updated terms. 2.7.2 11/16/2024