health + pregnancy

Calculatorist Health Editorial Team

Health Calculator Reviewers

The Health Editorial Team maintains 7 health/fitness calculators and 1 pregnancy calculator. The team's reviewers cross-check every formula against the originating clinical study or guideline — Mifflin-St Jeor (1990) for BMR, US Navy circumference method for body fat percentage, WHO BMI cut-offs with the South Asian-specific tighter range note, Naegele's rule for due date estimation. Every calculator's disclaimer explicitly states it is a screening or planning tool, not a diagnostic instrument or medical advice. The team treats calculator outputs as starting points for conversations with qualified physicians, dietitians, or gynaecologists.

Areas of expertise

  • Body composition: BMI (WHO + South Asian cut-offs), body fat % (US Navy method)
  • Energy needs: BMR via Mifflin-St Jeor, TDEE with activity multipliers, macros split
  • Ideal weight ranges: Devine, Hamwi, Robinson formulas
  • Pregnancy: Naegele's rule (LMP + 280 days), conception dating, ovulation window
  • Hydration: weight-based water intake estimation

Editorial standards

  • Formulas sourced from peer-reviewed publications (Mifflin-St Jeor 1990 in Am J Clin Nutr, etc.)
  • Indian-specific clinical adjustments (e.g., South Asian BMI threshold) cited explicitly
  • Disclaimers state clearly: calculators are screening tools, not diagnostic
  • Pregnancy and fertility calculators emphasise that ultrasound dating is more accurate than LMP-based estimates

Primary sources

  • World Health Organization (WHO) clinical guidelines
  • Indian Council of Medical Research (ICMR) nutrition recommendations
  • American College of Obstetricians and Gynecologists (ACOG) clinical bulletins
  • American Dietetic Association — equations for energy expenditure
  • Original peer-reviewed publications (Mifflin et al., Devine, Hamwi)

Review cadence

Annual review against current WHO/ICMR guidelines. Updates when major clinical guidelines change (rare; typically every 3-5 years).

See also: Editorial Policy · Methodology · All editorial desks