diff --git a/src/behave/behaveUnits.cpp b/src/behave/behaveUnits.cpp
index 5d1ed72..54de524 100644
--- a/src/behave/behaveUnits.cpp
+++ b/src/behave/behaveUnits.cpp
@@ -427,42 +427,42 @@ double PressureUnits::toBaseUnits(double value, PressureUnitsEnum units) {
       }
       case HectoPascal:
       {
-          value /= HECTOPASCAL_TO_PASCAL;
+          value *= HECTOPASCAL_TO_PASCAL;
           break;
       }
       case KiloPascal:
       {
-          value /= KILOPASCAL_TO_PASCAL;
+          value *= KILOPASCAL_TO_PASCAL;
           break;
       }
       case MegaPascal:
       {
-          value /= MEGAPASCAL_TO_PASCAL;
+          value *= MEGAPASCAL_TO_PASCAL;
           break;
       }
       case GigaPascal:
       {
-          value /= GIGAPASCAL_TO_PASCAL;
+          value *= GIGAPASCAL_TO_PASCAL;
           break;
       }
       case Bar:
       {
-          value /= BAR_TO_PASCAL;
+          value *= BAR_TO_PASCAL;
           break;
       }
       case Atmosphere:
       {
-          value /= ATMOSPHERE_TO_PASCAL;
+          value *= ATMOSPHERE_TO_PASCAL;
           break;
       }
       case TechnicalAtmosphere:
       {
-          value /= TECH_ATMOSPHERE_TO_PASCAL;
+          value *= TECH_ATMOSPHERE_TO_PASCAL;
           break;
       }
       case PoundPerSquareInch:
       {
-          value /= POUNDS_PER_SQUARE_INCH;
+          value *= POUNDS_PER_SQUARE_INCH;
           break;
       }
   }
@@ -491,41 +491,41 @@ double PressureUnits::fromBaseUnits(double value, PressureUnitsEnum units) {
       }
       case HectoPascal:
       {
-          value *= HECTOPASCAL_TO_PASCAL;
+          value /= HECTOPASCAL_TO_PASCAL;
           break;
       }
       case KiloPascal:
       {
-          value *= KILOPASCAL_TO_PASCAL;
+          value /= KILOPASCAL_TO_PASCAL;
           break;
       }
       case MegaPascal:
       {
-          value *= MEGAPASCAL_TO_PASCAL;
+          value /= MEGAPASCAL_TO_PASCAL;
           break;
       }
       case GigaPascal:
       {
-          value *= GIGAPASCAL_TO_PASCAL;
+          value /= GIGAPASCAL_TO_PASCAL;
           break;
       }
       case Bar:
       {
-          value *= BAR_TO_PASCAL;
+          value /= BAR_TO_PASCAL;
           break;
       }
       case Atmosphere:
       {
-          value *= ATMOSPHERE_TO_PASCAL;
+          value /= ATMOSPHERE_TO_PASCAL;
           break;
       }
       case TechnicalAtmosphere:
       {
-          value *= TECH_ATMOSPHERE_TO_PASCAL;
+          value /= TECH_ATMOSPHERE_TO_PASCAL;
           break;
       }
       case PoundPerSquareInch: {
-          value *= POUNDS_PER_SQUARE_INCH;
+          value /= POUNDS_PER_SQUARE_INCH;
           break;
       }
   }