diff --git a/addons/crm/crm_lead.py b/addons/crm/crm_lead.py
index 8387a3231e2..a63fc616c8d 100644
--- a/addons/crm/crm_lead.py
+++ b/addons/crm/crm_lead.py
@@ -238,6 +238,7 @@ class crm_lead(format_address, osv.osv):
                                      multi='day_open', type="float",
                                      store={'crm.lead': (lambda self, cr, uid, ids, c={}: ids, ['date_closed'], 10)}),
         'date_last_stage_update': fields.datetime('Last Stage Update', select=True),
+        'date_conversion': fields.datetime('Conversion Date', readonly=1),
 
         # Messaging and marketing
         'message_bounce': fields.integer('Bounce'),
@@ -701,6 +702,7 @@ class crm_lead(format_address, osv.osv):
             'date_open': fields.datetime.now(),
             'email_from': customer and customer.email or lead.email_from,
             'phone': customer and customer.phone or lead.phone,
+            'date_conversion': fields.datetime.now(),
         }
         if not lead.stage_id or lead.stage_id.type=='lead':
             val['stage_id'] = self.stage_find(cr, uid, [lead], team_id, [('type', 'in', ('opportunity', 'both'))], context=context)
diff --git a/addons/crm/crm_lead_view.xml b/addons/crm/crm_lead_view.xml
index 65f818d5881..d4ea652c38c 100644
--- a/addons/crm/crm_lead_view.xml
+++ b/addons/crm/crm_lead_view.xml
@@ -468,6 +468,7 @@
                             <group>
                                 <field name="tag_ids" widget="many2many_tags"/>
                                 <field name="lost_reason"/>
+                                <field name="date_conversion" invisible="1"/>
                             </group>
                         </group>
 
diff --git a/addons/crm/report/crm_opportunity_report.py b/addons/crm/report/crm_opportunity_report.py
index 376ff44c3a4..67c7bc828ac 100644
--- a/addons/crm/report/crm_opportunity_report.py
+++ b/addons/crm/report/crm_opportunity_report.py
@@ -61,6 +61,7 @@ class crm_opportunity_report(osv.Model):
             ('opportunity','Opportunity'),
         ],'Type', help="Type is used to separate Leads and Opportunities"),
         'lost_reason': fields.many2one('crm.lost.reason', 'Lost Reason', readonly=True),
+        'date_conversion': fields.datetime('Conversion Date', readonly=True),
     }
 
     def init(self, cr):
@@ -95,7 +96,8 @@ class crm_opportunity_report(osv.Model):
                     extract('epoch' from (c.date_closed-c.create_date))/(3600*24) as  delay_close,
                     abs(extract('epoch' from (c.date_deadline - c.date_closed))/(3600*24)) as  delay_expected,
                     extract('epoch' from (c.date_open-c.create_date))/(3600*24) as  delay_open,
-                    c.lost_reason
+                    c.lost_reason,
+                    c.date_conversion as date_conversion
                 FROM
                     crm_lead c
                 WHERE c.active = 'true'
diff --git a/addons/crm/report/crm_opportunity_report_view.xml b/addons/crm/report/crm_opportunity_report_view.xml
index 6e37d304dc3..c70c5670f50 100644
--- a/addons/crm/report/crm_opportunity_report_view.xml
+++ b/addons/crm/report/crm_opportunity_report_view.xml
@@ -107,7 +107,8 @@
                         <filter string="Stage" context="{'group_by':'stage_id'}"/>
                         <separator orientation="vertical" />
                         <filter string="Creation Month" context="{'group_by':'create_date:month'}" name="month"/>
-                        <filter string="Expected Closing" context="{'group_by':'date_deadline:month'}" name="month" help="Expiration Closing Month"/>
+                        <filter string="Expected Closing" context="{'group_by':'date_deadline:month'}" name="date_deadline" help="Expiration Closing Month"/>
+                        <filter string="Conversion Date" context="{'group_by':'date_conversion:month'}" name="conversion_date" help="Conversion Date from Lead to Opportunity"/>
                         <filter string="Lost Reason" context="{'group_by':'lost_reason'}"/>
                     </group>
                 </search>