Create provisional date of birth with age and date of care

[Kal_Lam]

Welcome to the community, @OFMEALCAT! Maybe this post discussed previously should help you solve your issue:

DOB (Year) calculation from Age entered in Years

@asif_rahman_joy, you could do it as outlined in the image shared below: In the survey tab of your XLSForm: [Image 1] Data entry screen as seen in Enketo: [Image 2] Reference XLSForm: Calculate Age.xlsx (8.6 KB)