At sea level 15 lbs/sq inch equals 29,5 inches of mercury or 1,013 millibars.
Elwandle ishumi elinesihlanu lesiqingatho se-intshi silingana nee-intshi zemekyuri ezingamashumi amabini anethoba linesiqingatha okanye iwaka elineshumi elinesithathu somlinganiselo woxinzelelo lomoya.