Skip to calculator

CLINICAL TOOL · ICMR-NIN 2020 · FOGSI/NHM AMB 2021 · WHO 2024 · INDIA-CALIBRATED

Iron Requirement
Calculator for Women

Phase-adjusted daily iron needs, anaemia risk flags, food-based guidance and AMB/FOGSI supplementation protocols — calibrated to Indian diets, ICMR-NIN 2020 RDAs and WHO 2024 haemoglobin thresholds.

80%South Asian maternal anaemia deaths are Indian (ICMR)
27 mgDaily iron RDA in pregnancy (ICMR-NIN 2020)
57–72%Indian women of reproductive age are anaemic
ICMR-NIN 2020 RDA · Phase-Adjusted Iron Demand
WHO 2024 · FOGSI/ICMR Severity Flags
AMB Supplement Protocol · Ganzoni IV Iron Dose
IFCT 2017 · Indian Iron-Rich Foods · Enhancers
DAILY IRON REQUIREMENT (RDA)
Complete the form
RDA
--
mg/day
Diet Est.
--
mg/day
Gap
--
mg/day

Calculate Your Daily Iron Requirement

ICMR-NIN 2020 · FOGSI/NHM AMB 2021 · WHO 2024 · Phase-adjusted · India-calibrated

Educational and clinical decision-support tool based on ICMR-NIN 2020, FOGSI GCPR, NHM AMB 2021, and WHO 2024 guidelines. Not a substitute for clinical diagnosis or prescription. Decisions about high-dose oral iron, parenteral iron or blood transfusion must be made by a qualified clinician per FOGSI/NHM protocols.
Age and Weight * Weight determines Ganzoni IV iron dose. Age determines applicable ICMR-NIN 2020 RDA band (adolescent vs adult). Use pre-pregnancy or early gestational weight for pregnant women.
Physiological Status * Determines ICMR-NIN 2020 RDA: Non-pregnant 29 mg/day · Pregnant 27 mg/day · Lactating 23 mg/day. Pregnant women also receive trimester-specific absorbed demand index (FOGSI GCPR data).
Current Haemoglobin (Hb) (optional but recommended) Enables WHO 2024 + FOGSI/ICMR anaemia severity classification and Ganzoni IV iron dose calculation. Leave blank if result not available — a risk-factor-based flag will be generated instead.
Dietary Pattern * Indian vegetarian diet provides ~8 mg Fe/1000 kcal (90–95% non-heme, poorly absorbed). Mixed diet with flesh foods: ~9–10 mg/1000 kcal (heme iron 15–35% absorption). Affects dietary gap estimate and food recommendations.
Risk Factors (select all that apply) Generates a high-risk anaemia flag even without Hb data, based on prevalence epidemiology. Each factor independently elevates anaemia risk in Indian women (NFHS-5; ICMR; FOGSI).

ICMR-NIN 2020 · FOGSI GCPR 2021 · NHM AMB 2021 · WHO 2024 · NFHS-5 · IFCT 2017

ANAEMIA NUTRITION SUPPORT

Iron & Nutrition Coaching

Personalised anaemia management, iron-rich Indian meal plans, supplement timing and pregnancy nutrition from our specialist dietitians.

Book Consultation →

WHAT THIS CALCULATOR GIVES YOU

🩸
Phase-Adjusted Iron RDAICMR-NIN 2020 · Trimester demand index (FOGSI)
⚠️
Anaemia Severity FlagWHO 2024 cutoffs · FOGSI/ICMR severity classes
💊
Supplement ProtocolAMB/NHM 2021 · FOGSI GCPR · WHO 60 mg guidance
🍽️
Indian Food GuidanceIFCT 2017 iron-rich foods · Enhancers/inhibitors
💉
Ganzoni IV Iron DoseParenteral iron calculation for severe/refractory anaemia

CLINICAL REFERENCES

ICMR-NIN (2020)Nutrient Requirements for Indians — Iron RDAs
FOGSI GCPR (2021)Iron Deficiency Anaemia in Pregnancy
NHM/MoHFW (2021)Anemia Mukt Bharat Operational Guidelines
WHO (2024)Haemoglobin cutoffs for anaemia diagnosis
IFCT (2017)Indian Food Composition Tables, NIN

RELATED DIETXP TOOLS

🍽️
Pregnancy Nutrition CalculatorICMR-NIN 2024 TDEE + macros + 11 micronutrients
 🔄
PCOS Nutrition CalculatorTDEE + low-GI macros · PCOS Guidelines 2023
 👶
Pregnancy Due Date CalculatorACOG CO 700 EDD · LMP, IVF, ultrasound
 ⚗️
Hormonal Nutrition CalculatorMSJ + PCOS, thyroid, menopause

⚕️ Clinical Disclaimer: This tool is an educational reference based on ICMR-NIN 2020, FOGSI GCPR, NHM AMB 2021, and WHO 2024 guidelines. Outputs are population-level estimates. Iron deficiency anaemia diagnosis requires laboratory confirmation (CBC, serum ferritin, MCV). All decisions regarding high-dose oral iron, intravenous iron therapy (iron sucrose, ferric carboxymaltose), or blood transfusion must be made by a qualified clinician in accordance with FOGSI and NHM protocols. The Ganzoni calculation provided is for educational reference — actual IV iron dosing requires clinical assessment. Always consult your obstetrician, gynaecologist or haematologist for individual management.