MedCalc

Medical Calculator

MedCalc is a medical calculator for iOS that gives you easy access to complicated medical formulas, scores, scales and classifications.

Born Mobile

MedCalc has been available on mobile platforms for over 15 years, leveraging years of experience in bringing medical equations to physicians in a clear, yet powerful format. You will enjoy the refined interface, carefully crafted for mobile devices, that gets out of your way but supports you in those critical moments.

Focused

  • A large selection of relevant formulas, scores, scales and classifications
  • Detailed information and bibliographic references for each formula
  • Support for multiple SI and US units, with easy switching from the keypad
  • Customizable list of favorite equations
  • Access equations by name, categories and keywords
  • Many ways to share formula results (email, print, copy to clipboard)
  • Exclusive patient management features for saving, accessing and sharing results
  • Available in English, French, German, Portuguese, Spanish and soon Chinese

Get MedCalc

A comprehensive collection of formulas, scores and classifications

Free formulas and scores

Every entry in this list is fully functional upon free App download

  • A-a O2 Gradient and Ratio
  • ABCD2 Score
  • APGAR Score
  • ASA Classification
  • ASIA Scale
  • AVPU Scale
  • Balthazar CT
  • Basal Energy Expenditure
  • Bicarbonate Deficit
  • Body Mass Index
  • BORG and BORG CR10 Scales
  • Bristol Stool Chart
  • Bromage Scale
  • Bromage (Breen) Scale
  • BSAS
  • Burn Area
  • Canadian CT Head Rule
  • Cardiac Valve Area (Gorlin)
  • CHADS2 Score
  • Change In Serum Na
  • Child-Pugh Classification
  • Cormack Classification
  • Corrected Ca (Protein)
  • Corrected Na (glucose)
  • CURB-65 Score
  • Delta PP
  • Dermatome Map
  • Dyspnea Scale (MMRC)
  • Epworth Sleepiness Scale
  • EuroSCORE
  • Expected PCO2 (Winters)
  • Eye Chart (Snellen)
  • Fisher Scale
  • Forrest Classification
  • Fractional Excretion of Na
  • Geneva Score for PE
  • GFR (Cockroft-Gault)
  • GFR (Creatinine measured)
  • Glasgow Coma Scale
  • Glasgow Outcome Scale
  • GOLD Classification
  • Heart Rate (EKG)
  • Henderson-Hasselbalch
  • Hunt Hess Scale
  • Infusion Management
  • Infusion: IV Drip Rate
  • Iron Deficit
  • KDIGO
  • Killip Classification
  • LDL Cholesterol
  • Light's Criteria
  • Liver Volume
  • Mallampati Classification
  • Mean Arterial Pressure
  • MELD (-Na) Score
  • Muscle Strength Scale
  • NACA Scale
  • Nexus II Head-CT rule
  • NYHA Functional Class.
  • Odds - Probability Conv.
  • Osmotic Gap (serum)
  • Ottawa Knee Rule
  • O2 Tank Remaining Time
  • PaO2 / FiO2 Ratio
  • PERC
  • Pack Years Calculator
  • Pain Visual Scale
  • Performance Scales (Karnofsky, Zubrod)
  • Peritonitis Scale (Hinchey)
  • Plasma Volume
  • Post-test Probability (LR)
  • Post-test Probability (Sn/Sp)
  • Q-Tc
  • Ramsay Sedation Scale
  • Rankin Scale (Modified)
  • RIFLE
  • Richmond Agit. Sed. Scale
  • Rudkin Scale
  • Rutgeerts Classification
  • SIRS Criteria
  • SMART-COP Score
  • Sedation-Agitation Scale
  • Serum-Ascites Alb. Grad.
  • Target Height
  • Teeth Numbering (FDI/Univ.)
  • Tidal Volume (ARDSnet)
  • Two-Way Table
  • Units Conversion (Chem.)
  • Units Conversion (Physics)
  • Vascular Resistances
  • Warfarin Dosage Nomogram
  • Wells Score for DVT

Unlocked by In-App Purchase

MedCalc 2.7 and MedCalc Pro users eligible for discount

  • 4T Score for HIT
  • 6-min Walk Test Distance
  • ABCD3-I Score
  • Abbreviated Mental Test
  • ABG Analyzer
  • ABIC Score
  • ABSI
  • Absolute Neutrophil Count
  • ACC/AHA ASCVD Risk
  • Adjusted Body Weight
  • ADO Index
  • Age
  • Allowable Blood Loss
  • Alvarado Score
  • Anion Gap (serum)
  • Anion Gap (urine)
  • Ankle-Brachial Index
  • APACHE II Score
  • Aphasia Classification
  • APRI Score
  • ATRIA Score
  • Barthel Index
  • BATiC Score
  • Behavioral Pain Scale
  • BISAP Score
  • Bishop Score
  • Blatchford Score
  • BODE Index
  • Body Surface Area
  • Bowel Length
  • Calvert formula
  • CAM-ICU
  • Canadian C-Spine Rule
  • CAP PIRO Score
  • Cardiac Output (Fick)
  • CATCH Rule
  • CCS Angina Scale
  • CDAI
  • Centor & McIsaac
  • CHA2DS2-VASc Score
  • Charlson Morbidity Index
  • Cincinnati Stroke Scale
  • CIWA-Ar
  • Clin. Pulm. Infection Score
  • Corrected Ca (Albumin)
  • Corr. Phenytoin (Albumin)
  • Corrected Na (lipids)
  • Corrected Na (protein)
  • Corticosteroids Equivalence
  • CRB-65 Score
  • CRUSADE Score
  • CVC Optimal Positioning
  • Daniel's ECG Score
  • DAS28 (ESR and CRP)
  • Delta Gap and Ratio
  • Detsky Score
  • Duke Criteria (modified)
  • Eckardt Score
  • EuroSCORE II
  • FLACC
  • Fluid Repl. For Burns
  • FOUR Score
  • Fractional Excretion of Ca
  • Fractional Excretion of Mg
  • Fractional Excretion of Urea
  • Framingham ATPIII
  • Framingham Gen. CV Risk
  • Geneva Pronostic Score
  • GFR (CKD-EPI)
  • GFR (MDRD)
  • GFR (Salazar)
  • GFR (Schwartz)
  • Glasgow EtOH Hep. Score
  • Glasgow Coma Scale (ped)
  • Glasgow Scoring System
  • Goldman Score
  • Gouty Arthritis Rule
  • GRACE Score
  • Growth Velocity
  • Harvey Bradshaw Index
  • HAS-BLED Score
  • HbA1c converter
  • HEART Score
  • HEMORR2HAGES Score
  • Hepatitis Disc. Function
  • Hestia
  • HRAR Score
  • Ideal Body Weight
  • In-Flight PaO2
  • Infusion: Rule of six
  • Injury Severity Score
  • ISTH-DIC
  • Jones Criteria
  • Karnofsky Scale
  • Katz
  • Khorana Score
  • Kocher Criteria
  • Kt/V (URR)
  • Lean Body Weight
  • Lee Score
  • Likelihood Ratios
  • Lille Model
  • LRINEC
  • Lung Age
  • Maintenance Fluid (children)
  • Malinas Score
  • Mannheim Peritonitis Score
  • MASCC Score
  • MEES
  • MEWS
  • Microalbuminuria
  • Mifflin-St Jeor
  • Murray Score
  • NAC Dosage Regimen
  • NAFLD Fibrosis Score
  • New Orleans Criteria
  • Nexus C-Spine Criteria
  • NIHSS
  • Norton Scale
  • Number Needed To Treat
  • OBRI Score
  • Opioids Equivalence
  • Osmotic Gap (stool)
  • Ottawa Ankle Rules
  • Ottawa SAH Rule
  • Oxygen Index
  • O2 Transport Parameters
  • PECARN Algorithm
  • Pediatric Trauma Score
  • Pediatric Tube Size
  • PELD Score
  • Peritonitis Severity Score
  • PESI
  • PESI (simplified)
  • Physical Working Capacity
  • PISA Model
  • Pneumonia Severity Index
  • POSSUM
  • PRAM Score
  • Pred. Height
  • Pred. Peak Flow (adults)
  • Pregnancy Wheel
  • PREP Score
  • Pressure Gradient
  • PROCAM
  • Protein Excretion
  • Qp:Qs
  • Ranson's Score
  • Red Blood Cell Indices
  • Renal Failure Index
  • Resuscitation Doses (ped)
  • Reticulocyte Index
  • Revised Trauma Score
  • Rockall Score
  • ROSIER Scale
  • RSBI
  • Sample Size
  • San Francisco Syncope Rule
  • SAPS II Score
  • Shock Index
  • SMRT-CO Score
  • SOFA Score
  • Solitary Nodule Risk
  • Spirometric Values
  • STOP-BANG Score
  • TASH Score
  • Thoracoscore
  • TIMI Scores
  • Transferrin Saturation
  • Transtubular K Gradient
  • Tubular PO4 Reabsorption
  • Umbilical line length
  • Urinary Excretion of Calcium
  • Urine Output
  • VAP PIRO Score
  • Water Deficit
  • Wells Score for PE
  • WETFAG
  • WFNS for SAH

Something Missing?

Are you missing a formula that you rely on? Can't find a scale that would be handy to have? Let us know!

The people behind MedCalc

Design

MedCalc is developed by Pascal Pfiffner and Mathias Tschopp, two Medical Doctors who believe you shouldn't be able to recognize medical software by their lousy user interface.

Localization

The following people have contributed to our localization efforts:

  • French: Mathias Tschopp
  • German: Pascal Pfiffner
  • Portuguese: Jairon Carvalho Moura
  • Simplified Chinese: Hongyang NI
  • Spanish: Rodolfo Marín, Ariel Joel Hdez Viveros, Antonio Martin Marco, Juan Pablo Piombo, Iñaki Martinez de Ilarduya Muñoz, Eliseo Rodriguez Claus, José María Pérez Ramos

We have built a friendly web-based localization tool that requires no technical knowledge. Don't hesitate to contact us if you want to help localize MedCalc in your language.

Artwork

Get it free with In-App Purchase