diff --git a/src/easyreflectometry/project.py b/src/easyreflectometry/project.py
index 66358de4..116a62e0 100644
--- a/src/easyreflectometry/project.py
+++ b/src/easyreflectometry/project.py
@@ -78,29 +78,18 @@ def parameters(self) -> List[Parameter]:
                 parameters.append(vertice_obj)
         return parameters
 
-    # @property
-    # def count_free_parameters(self) -> int:
-    #     count = 0
-    #     for parameter in self.parameters:
-    #         if parameter.free:
-    #             count = count + 1
-    #     return count
-
-    # @property
-    # def count_fixed_parameters(self) -> int:
-    #     count = 0
-    #     for parameter in self.parameters:
-    #         if not parameter.free:
-    #             count = count + 1
-    #     return count
-
-    # @property
-    # def count_parameter_user_constraints(self) -> int:
-    #     count = 0
-    #     parameters = self.parameters
-    #     for parameter in parameters:
-    #         count = count + len(parameter.user_constraints.keys())
-    #     return count
+    def count_free_parameters(self) -> int:
+        return sum(1 for parameter in self.parameters if parameter.free)
+
+    def count_fixed_parameters(self) -> int:
+        return sum(1 for parameter in self.parameters if not parameter.free)
+
+    def count_parameter_user_constraints(self) -> int:
+        count = 0
+        parameters = self.parameters
+        for parameter in parameters:
+            count = count + len(parameter.user_constraints.keys())
+        return count
 
     @property
     def q_min(self):
diff --git a/src/easyreflectometry/summary/summary.py b/src/easyreflectometry/summary/summary.py
index 758038b9..de521259 100644
--- a/src/easyreflectometry/summary/summary.py
+++ b/src/easyreflectometry/summary/summary.py
@@ -162,12 +162,12 @@ def _experiments_section(self) -> str:
 
     def _refinement_section(self) -> str:
         html_refinement = HTML_REFINEMENT_TEMPLATE
-        num_free_params = self._project.count_free_parameters
-        num_fixed_params = self._project.count_fixed_parameters
+        num_free_params = self._project.count_free_parameters()
+        num_fixed_params = self._project.count_fixed_parameters()
         num_params = num_free_params + num_fixed_params
         #        goodness_of_fit = self._project.status.goodnessOfFit
         #        goodness_of_fit = goodness_of_fit.split(' → ')[-1]
-        num_constraints = self._project.count_parameter_user_constraints
+        num_constraints = self._project.count_parameter_user_constraints()
 
         html_refinement = html_refinement.replace('calculation_engine', f'{self._project._calculator.current_interface_name}')
         html_refinement = html_refinement.replace('minimization_engine', f'{self._project.minimizer.name}')
diff --git a/tests/test_project.py b/tests/test_project.py
index 803cf1d0..2c7b7355 100644
--- a/tests/test_project.py
+++ b/tests/test_project.py
@@ -642,7 +642,7 @@ def test_count_free_parameters(self):
         project.parameters[0].free = True
 
         # Then
-        count = project.count_free_parameters
+        count = project.count_free_parameters()
 
         # Expect
         assert count == 1
@@ -654,7 +654,7 @@ def test_count_fixed_parameters(self):
         project.parameters[0].free = True
 
         # Then
-        count = project.count_fixed_parameters
+        count = project.count_fixed_parameters()
 
         # Expect
         assert count == 13
@@ -666,7 +666,7 @@ def test_count_parameter_user_constraints(self):
         project.parameters[0].user_constraints['name_other_parameter'] = 'constraint'
 
         # Then
-        count = project.count_parameter_user_constraints
+        count = project.count_parameter_user_constraints()
 
         # Expect
         assert count == 1