diff --git a/hr_employee_relative/models/hr_employee_relative.py b/hr_employee_relative/models/hr_employee_relative.py
index 21ed4c63e73..f7258bfde55 100644
--- a/hr_employee_relative/models/hr_employee_relative.py
+++ b/hr_employee_relative/models/hr_employee_relative.py
@@ -23,7 +23,9 @@ class HrEmployeeRelative(models.Model):
         selection=[("male", "Male"), ("female", "Female"), ("other", "Other")],
     )
     date_of_birth = fields.Date()
-    age = fields.Float(compute="_compute_age")
+    age_year = fields.Integer(string="Age (Years)", compute="_compute_age")
+    age_month = fields.Integer(string="Age (Months)")
+    age_day = fields.Integer(string="Age (Days)")
 
     job = fields.Char()
     phone_number = fields.Char()
@@ -33,8 +35,15 @@ class HrEmployeeRelative(models.Model):
     @api.depends("date_of_birth")
     def _compute_age(self):
         for record in self:
-            age = relativedelta(datetime.now(), record.date_of_birth)
-            record.age = age.years + (age.months / 12)
+            if record.date_of_birth:
+                age = relativedelta(datetime.now(), record.date_of_birth)
+                record.age_year = age.years
+                record.age_month = age.months
+                record.age_day = age.days
+            else:
+                record.age_year = 0
+                record.age_month = 0
+                record.age_day = 0
 
     @api.onchange("partner_id")
     def _onchange_partner_id(self):
diff --git a/hr_employee_relative/tests/test_hr_employee_relatives.py b/hr_employee_relative/tests/test_hr_employee_relatives.py
index 3d5d02fc34f..9f6ab78923e 100644
--- a/hr_employee_relative/tests/test_hr_employee_relatives.py
+++ b/hr_employee_relative/tests/test_hr_employee_relatives.py
@@ -9,13 +9,16 @@
 
 
 class TestHrEmployeeRelatives(common.TransactionCase):
-    def setUp(self):
-        super().setUp()
-        self.Employee = self.env["hr.employee"]
-        self.EmployeeRelative = self.env["hr.employee.relative"]
-        self.relation_sibling = self.env.ref("hr_employee_relative.relation_sibling")
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.Employee = cls.env["hr.employee"]
+        cls.EmployeeRelative = cls.env["hr.employee.relative"]
+        cls.relation_sibling = cls.env.ref("hr_employee_relative.relation_sibling")
+        cls.partner_1 = cls.env.ref("base.res_partner_1")
+        cls.partner_2 = cls.env.ref("base.res_partner_2")
 
-    def test_age_calculation(self):
+    def create_relative(self, dob):
         employee = self.Employee.create(
             {
                 "name": "Employee",
@@ -25,19 +28,37 @@ def test_age_calculation(self):
                         0,
                         {
                             "relation_id": self.relation_sibling.id,
-                            "partner_id": self.env.ref("base.res_partner_1").id,
+                            "partner_id": self.partner_1.id,
                             "name": "Relative",
-                            "date_of_birth": datetime.now() + relativedelta(years=-42),
+                            "date_of_birth": dob,
                         },
                     )
                 ],
             }
         )
-        relative = self.EmployeeRelative.browse(employee.relative_ids[0].id)
-        self.assertEqual(int(relative.age), 42)
+        return self.EmployeeRelative.browse(employee.relative_ids[0].id)
+
+    def test_age_calculation_with_dob(self):
+        dob = datetime.now() + relativedelta(years=-42, months=-3, days=-15)
+        relative = self.create_relative(dob)
+
+        expected_age = relativedelta(datetime.now(), dob)
+
+        self.assertEqual(relative.age_year, expected_age.years)
+        self.assertEqual(relative.age_month, expected_age.months)
+        self.assertEqual(relative.age_day, expected_age.days)
         self.assertEqual(relative.name, "Relative")
-        # onchange partner
+
+        # Test onchange partner
         with Form(relative) as f:
-            f.partner_id = self.env.ref("base.res_partner_2")
+            f.partner_id = self.partner_2
             f.relation_id = self.relation_sibling
         self.assertEqual(relative.name, relative.partner_id.display_name)
+
+    def test_age_calculation_without_dob(self):
+        relative = self.create_relative(False)
+
+        self.assertEqual(relative.age_year, 0)
+        self.assertEqual(relative.age_month, 0)
+        self.assertEqual(relative.age_day, 0)
+        self.assertEqual(relative.name, "Relative")
diff --git a/hr_employee_relative/views/hr_employee_relative.xml b/hr_employee_relative/views/hr_employee_relative.xml
index b1ddd11673e..c009c79450a 100644
--- a/hr_employee_relative/views/hr_employee_relative.xml
+++ b/hr_employee_relative/views/hr_employee_relative.xml
@@ -14,7 +14,9 @@
                 <field name="partner_id" />
                 <field name="gender" />
                 <field name="date_of_birth" />
-                <field name="age" />
+                <field name="age_year" string="Age (Years)" />
+                <field name="age_month" string="Age (Months)" optional="hide" />
+                <field name="age_day" string="Age (Days)" optional="hide" />
                 <field name="phone_number" />
                 <field name="job" />
                 <field name="notes" />