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62+ free medical calculators following NCDC, IAP, FOGSI, NICE and WHO guidelines. Fast, accurate, and privacy-focused.

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💉 Rabies PEP Most Used 💊 Amoxicillin 🫘 CrCl 🫀 CHA₂DS₂-VASc 👶 APGAR ⚖️ BMI India 🫁 CURB-65

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Fast, accurate, and clinically validated tools used by doctors every day.

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🦠 Infectious Disease · NCDC / WHO

💉 Rabies PEP Scheduler

Calculate vaccination dates (Days 0, 3, 7, 28) and RIG dose by body weight. Based on NCDC India and WHO protocols. Covers wound categories I–III.

Essen Regimen RIG Calculator Category I–III NCDC India WHO 2018

Open Scheduler →

#1

Most Visited

4

Dose Dates

NCDC

Guideline

Amoxicillin Dosing

Weight-based mg/kg for ENT & UTIs

Insulin Calculator

Basal-bolus & correction factor sliding scale

Mean arterial pressure targets & shock thresholds

🆕 Recently Added

New Calculators

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Bedside sepsis risk

CHA₂DS₂-VASc

AFib stroke risk

Mental health screen

NRP 2020 resuscitation

ARV Dose Calculator

RIG by weight, NCDC India

Metabolic acidosis

💧 IV Drip Rate Calculator

Drops/min · mL/hr · Try it right here

—

Drops / min

—

mL / hour

Volume (mL)

Time (Hours)

IV Set Drop Factor

Standard Set 15 gtts/mL

Paeds Set 60 gtts/mL

Formula Dpm = (Vol × F) / Min

mL/hr Vol / Time

🚨

Emergency & Critical Care

8 tools

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CURB-65 Calculator

Pneumonia severity score with 30-day mortality risk and BTS-guideline admission decisions for CAP.

PneumoniaBTS Guidelines

NEWS2 Calculator

National Early Warning Score 2 — SpO₂ Scale 1 & 2, ACVPU, with RCP clinical response thresholds.

Acute DeteriorationRCP 2017

Glasgow Coma Scale for adults and paediatric patients (Adelaide scale). Supports intubated T modifier and TBI severity.

NeurologyAdult + Pediatric

Burn & Parkland Calculator

Rule of Nines TBSA estimation with 24-hour Parkland formula fluid resuscitation plan. Adult and paediatric.

Parkland Formula4mL/kg/%TBSA

Wells Score — DVT & PE

Pre-test probability for DVT and Pulmonary Embolism with NICE-guideline D-Dimer and imaging pathways.

DVT · PENICE Guidelines

Anion Gap Calculator

Anion gap with albumin correction. Identify high-AG vs normal-AG metabolic acidosis and delta-delta ratio.

Metabolic AcidosisDelta-Delta

Mentzer Index Calculator

Differentiate beta thalassemia from iron deficiency anaemia using MCV and RBC count. 90%+ accuracy.

Thalassemia vs IDAHematology

Mean arterial pressure from SBP and DBP. SSC 2021 sepsis targets, shock thresholds, cerebral perfusion pressure.

Shock ThresholdSSC 2021

👶

Paediatrics & Neonatology

8 tools

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Neonatal Jaundice Calculator

Phototherapy thresholds for newborns ≥35 weeks by age-in-hours. AAP 2022 & IAP guidelines.

AAP 2022IAP Guidelines

Pediatric Asthma Action Plan

Green/Yellow/Red zone guide for child asthma. Medication actions, emergency signs, WhatsApp sharing.

GINA 2024Printable

UIP Vaccine Tracker

Complete immunisation schedule birth to 16 years. Mark vaccines given, track overdue doses, get next visit date.

UIP + IAP 2024BCG · OPV · DPT

Child Growth Chart

Weight, height, BMI and head circumference Z-scores with SAM/MAM/stunting classification. WHO 0–5 yrs.

WHO PercentilesSAM · MAM

Child Milestones Tracker

Check developmental milestones by age — speech, motor, social skills. Identify delays with red flag alerts.

0–5 YearsRed Flags

Paracetamol Dose Calculator

Exact dose by weight (15mg/kg) or age. Syrup volumes for 125mg and 250mg/5ml, max daily dose.

15 mg/kg dosingCalpol · Dolo

ORS Rehydration Calculator

Exact ORS volumes for mild and moderate dehydration by weight. Zinc dose, ORS prep guide.

WHO Plan A & BIAP Guideline

APGAR Score Calculator

Interactive newborn assessment at 1, 5, and 10 minutes. NRP 2020 resuscitation guide included.

1 · 5 · 10 MinNRP 2020

🏥

General Medicine & Dosing

12 tools

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Drug Dose Calculator

Weight-based doses for antibiotics, antipyretics and emergency drugs. Custom drug concentrations.

mg/kg dosingPaediatric + Adult

ARV Dose Calculator

Anti-Rabies Vaccine — wound category, RIG dose by weight (HRIG/ERIG), Essen IM and intradermal schedules.

Category I·II·IIINCDC India

IV Drip Rate Calculator

mL/hr, drops/min, infusion time. Macro, micro, and burette drip sets supported.

mL/hr · drops/minDrop Factors

BMI Calculator India

BMI with Indian cutoffs (overweight ≥23, obese ≥25). Waist circumference risk, ideal weight range.

Indian CutoffsWaist Risk

eGFR Calculator

CKD-EPI 2021 equation. CKD staging, dose adjustment flags, and nephrology referral thresholds.

CKD-EPI 2021CKD Staging

HbA1c Converter

Convert HbA1c between % (NGSP) and mmol/mol (IFCC). eAG, diabetes control per ADA/ICMR.

NGSP ↔ IFCCADA · ICMR

Corrected Calcium

Adjust serum calcium for hypoalbuminaemia. Identifies hypo/hypercalcaemia masked by low albumin.

HypoalbuminaemiaCa²⁺ Correction

Child-Pugh Score

Liver disease severity — Class A, B, C with 1-year and 2-year survival estimates. Surgical risk guidance.

Liver CirrhosisClass A · B · C

Ideal body weight — Devine, Robinson, Miller, Hamwi formulas. ARDSNet tidal volume. Drug dosing reference.

4 FormulasARDSNet Tidal Vol

Creatinine Clearance (CrCl)

Cockcroft-Gault with CKD staging. Auto dose adjustment for 10 drugs including gentamicin, vancomycin, metformin.

Cockcroft-GaultDrug Dose Adjust

PHQ-9 & GAD-7 Screener

Validated depression and anxiety screening. NICE-guideline management. Item 9 suicidality alert included.

PHQ-9 DepressionNICE Guidelines

CHA₂DS₂-VASc Score

Stroke risk stratification in AFib. Annual stroke risk % and anticoagulation recommendations.

AFibAnticoagulation

🤰

Obstetrics & Gynaecology

2 tools

ObsCalc — Obstetric Suite

10 obstetric tools — gestational age, EFW Hadlock, Bishop score, Apgar, GDM dates, VBAC eligibility and PPH risk.

Bishop · Apgar · VBACFOGSI · ACOG

Due Date Calculator

Pregnancy due date from LMP, IVF transfer or ultrasound. Week-by-week milestones, scan reminders.

LMP · IVF · UltrasoundWeek by Week

🏭

Occupational Health

2 tools

Spirometry Predicted Values

FEV₁, FVC, FEV₁/FVC and PEFR predicted values using Jindal Indian equations. Classify obstructive, restrictive and mixed defects.

Jindal EquationsAFIH · Factories ActATS/ERS

Biomedical Waste Guide

Search 76+ waste items. Instant colour-code (Yellow/Red/White/Blue/Black), disposal method and CPCB compliance notes.

BMW Rules 2016CPCB Compliant

📋 Built Against

Guideline References

RxMedCalc tools are built following these clinical bodies and published guidelines.

🇮🇳 NCDC India IAP 2023 FOGSI 🌍 WHO 2018 NICE / BTS GINA 2024 CKD-EPI 2021 Jindal Spirometry ADA / ICMR AKIN / KDIGO NRP 2020 AAP 2022 SSC 2021 RCP 2017 CPCB BMW Rules

Why These Calculators Use Indian & International Guidelines

Many standard calculators use Western or WHO cutoffs not always appropriate for all clinical settings.

⚖️

Indian BMI Cutoffs

Indians develop metabolic disease at lower BMI values. Overweight ≥23, obese ≥25 — not the global 25/30 thresholds.

💉

NCDC Rabies Protocol

Rabies PEP follows the 4-dose Essen regimen per NCDC India and WHO 2018, covering category I, II, and III wounds.

🤰

FOGSI / DIPSI Obstetrics

Obstetric tools follow FOGSI and DIPSI protocols used in Indian clinical practice, alongside ACOG references.

🌍

Internationally Validated Scores

CURB-65, NEWS2, GCS, Wells Score follow BTS, RCP, and NICE guidelines — validated and widely used in Indian tertiary care.