diff --git a/src/blenderbim/blenderbim/bim/module/pset/__init__.py b/src/blenderbim/blenderbim/bim/module/pset/__init__.py
index 5e04e16662..2ba0a44e31 100644
--- a/src/blenderbim/blenderbim/bim/module/pset/__init__.py
+++ b/src/blenderbim/blenderbim/bim/module/pset/__init__.py
@@ -27,6 +27,7 @@ classes = (
     operator.EditPset,
     operator.EnablePsetEditing,
     operator.GuessQuantity,
+    operator.GuessAllQuantities,
     operator.RemovePset,
     operator.TogglePsetExpansion,
     operator.BIM_OT_add_property_to_edit,
diff --git a/src/blenderbim/blenderbim/bim/module/pset/operator.py b/src/blenderbim/blenderbim/bim/module/pset/operator.py
index 97ff77edd0..2178f74223 100644
--- a/src/blenderbim/blenderbim/bim/module/pset/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/pset/operator.py
@@ -389,6 +389,31 @@ class GuessQuantity(bpy.types.Operator):
                 return None, "METRE"
             return unit_settings.length_unit[0 : -len("METERS")], "METRE"
 
+class GuessAllQuantities(bpy.types.Operator):
+    bl_idname = "bim.guess_all_quantities"
+    bl_label = "Guess All Quantities"
+    bl_options = {"REGISTER", "UNDO"}
+    pset_id: bpy.props.IntProperty()
+    obj_name : bpy.props.StringProperty()
+    obj_type: bpy.props.StringProperty()
+
+    def execute(self, context):
+        self.qto_calculator = QtoCalculator()
+        obj = context.active_object
+        bpy.ops.bim.enable_pset_editing(pset_id=self.pset_id, obj=self.obj_name, obj_type=self.obj_type)
+        for prop in obj.PsetProperties.properties:
+            if (
+                'length' in prop.name.lower()
+                or 'area' in prop.name.lower()
+                or 'volume' in prop.name.lower()
+                or "width" in prop.name.lower()
+                or "height" in prop.name.lower()
+                or "depth" in prop.name.lower()
+                or "perimeter" in prop.name.lower()
+            ):
+                bpy.ops.bim.guess_quantity(prop=prop.name)
+        bpy.ops.bim.edit_pset(obj=self.obj_name, obj_type=self.obj_type)
+        return {"FINISHED"}
 
 class CopyPropertyToSelection(bpy.types.Operator, Operator):
     bl_idname = "bim.copy_property_to_selection"
diff --git a/src/blenderbim/blenderbim/bim/module/pset/ui.py b/src/blenderbim/blenderbim/bim/module/pset/ui.py
index a74ad6078f..70a1a173b7 100644
--- a/src/blenderbim/blenderbim/bim/module/pset/ui.py
+++ b/src/blenderbim/blenderbim/bim/module/pset/ui.py
@@ -88,6 +88,10 @@ def draw_psetqto_ui(context, pset_id, pset, props, layout, obj_type):
     obj_name = get_active_pset_obj_name(context, obj_type)
     if not props.active_pset_id:
         row.label(text=pset["Name"], icon="COPY_ID")
+        op = row.operator("bim.guess_all_quantities", icon="FILE_REFRESH", text="")
+        op.pset_id = pset_id
+        op.obj_name = obj_name
+        op.obj_type = obj_type
         op = row.operator("bim.enable_pset_editing", icon="GREASEPENCIL", text="")
         op.pset_id = pset_id
         op.obj = obj_name