diff --git a/lib/ai/formula_screen.dart b/lib/ai/formula_screen.dart
index 1494e42..74faca5 100644
--- a/lib/ai/formula_screen.dart
+++ b/lib/ai/formula_screen.dart
@@ -61,6 +61,7 @@ class _FormulaScreenState extends State<FormulaScreen> {
   String? _result;
   String? _selectedOutputUnit;
 
+
   @override
   void initState() {
     super.initState();
@@ -106,15 +107,13 @@ class _FormulaScreenState extends State<FormulaScreen> {
       final result = evaluator.evaluate(widget.formula, inputValues);
 
       // Convert output to selected unit if needed
-      if (_selectedOutputUnit != widget.formula.output.unit) {
-        _result = widget.corpus.convert(
-          result,
-          widget.formula.output.unit,
-          _selectedOutputUnit!,
-        ).toStringAsFixed(2);
-      } else {
-        _result = result.toStringAsFixed(2);
-      }
+      _result = widget.corpus.convert(
+        result,
+        widget.formula.output.unit,
+        _selectedOutputUnit!,
+      ).toStringAsFixed(2);
+
+      //print( "_evaluateFormula: result:${result} _result:${_result}");
 
       setState(() {});
     } catch (e, stack) {
diff --git a/lib/corpus.dart b/lib/corpus.dart
index fc735b4..29593aa 100644
--- a/lib/corpus.dart
+++ b/lib/corpus.dart
@@ -131,6 +131,7 @@ class Corpus{
     final xBase = _convertToBase(x, fromUnit);
     final xTo = _convertFromBase(xBase, toUnit);
 
+    //print( "convert: x:${x}${fromUnit} xTo:${xTo}${toUnit}");
     return xTo;
   }
 
diff --git a/lib/defaults/formulas.d4rt b/lib/defaults/formulas.d4rt
index 09d77a6..e73ae2d 100644
--- a/lib/defaults/formulas.d4rt
+++ b/lib/defaults/formulas.d4rt
@@ -4,7 +4,7 @@
   "name": "Temperature converter",
   "description": "Example of simple formula, just unit conversion",
   "input": [
-    {"name": "Input", "unit": "Celsius" }
+    {"name": "Input", "unit": "Kelvin" }
   ],
   "output": {"name": "Output", "unit": "Kelvin" },
   "d4rtCode": "Output = Input;",