Corrected Age



  
    
  

  
  
    Gestational age at birth
    
      
        Weeks
        
      
      
        Days
        
      
      
    
  

  
  
    Age input

    
      Mode:
      
        
        
      
    

    
    
      
        
          Date of birth
          
        
        
          Reference date
          
            
            
          
          
        
      
    

    

    
    
      
        Day of life
        
      
    
  

  
  
    Results

    
      
        PMA
        —
        
      
      
        Corrected age
        —
        
      
    

    
      
        Chron. age
        —
      
      
        Days premature
        —
      
      
        Day of life
        —
      
      
        Days to TEA
        —
      
    

    
    
      
        Estimated Due Date (EDD)
        —

▸ About this calculator

Overview

This calculator determines a preterm infant’s postmenstrual age (PMA), corrected age, chronological age, and day of life based on gestational age at birth and date of birth. It is designed for use in the NICU and post-discharge follow-up setting.

Key Terms

Postmenstrual Age (PMA)

PMA is the gestational age at birth plus the chronological age since birth, expressed in weeks and days.

Corrected age (also called adjusted age) is the age a preterm infant would be if born at term. It is calculated as PMA minus 40 weeks. Corrected age is only applicable for infants born before 37 weeks.

Term Equivalent Age (TEA)

TEA is the date on which a preterm infant reaches 40 weeks PMA (the equivalent of a full-term due date).

Day of Life (DOL)

DOL is the number of days since birth, with the day of birth counted as DOL 1. This convention is used consistently throughout infantfeeds.com calculators.

Important Notes

This calculator is intended as a clinical support tool for registered dietitians and other healthcare professionals. It does not replace clinical judgment.