diff --git a/src/OpenFOAM/global/unitConversion/unitConversion.H b/src/OpenFOAM/global/unitConversion/unitConversion.H
index 07305bdb13..95bf81b76e 100644
--- a/src/OpenFOAM/global/unitConversion/unitConversion.H
+++ b/src/OpenFOAM/global/unitConversion/unitConversion.H
@@ -42,29 +42,27 @@ namespace Foam
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 //- Conversion from degrees to radians
-template<class Type>
-inline Type degToRad(const Type& deg)
+inline scalar degToRad(const scalar deg)
 {
-    return (constant::mathematical::pi/180.0)*deg;
+    return deg*constant::mathematical::pi/180.0;
 }
 
 //- Conversion from radians to degrees
-template<class Type>
-inline Type radToDeg(const Type& rad)
+inline scalar radToDeg(const scalar rad)
 {
-    return (180.0/constant::mathematical::pi)*rad;
+    return rad*180.0/constant::mathematical::pi;
 }
 
 //- Conversion from atm to Pa
 inline scalar atmToPa(const scalar atm)
 {
-    return (atm*101325.0);
+    return atm*101325.0;
 }
 
 //- Conversion from atm to Pa
 inline scalar paToAtm(const scalar pa)
 {
-    return (pa/101325.0);
+    return pa/101325.0;
 }
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //