diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardController.java b/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardController.java
index 4ddbdf57b..316167007 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardController.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardController.java
@@ -62,6 +62,7 @@ public class DashboardController extends GenericForwardComposer {
 
     private Grid gridTasksSummary;
     private Grid gridMarginWithDeadline;
+    private Label lblOvertimeRatio;
 
     private org.zkoss.zk.ui.Component costStatus;
 
@@ -88,6 +89,7 @@ public class DashboardController extends GenericForwardComposer {
                 renderMarginWithDeadline();
                 renderEstimationAccuracy();
                 renderCostStatus(order);
+                renderOvertimeRatio();
             }
             showCharts();
         } else {
@@ -95,6 +97,11 @@ public class DashboardController extends GenericForwardComposer {
         }
     }
 
+    private void renderOvertimeRatio() {
+        lblOvertimeRatio.setValue(String.format("%.2f", dashboardModel
+                .getOvertimeRatio().doubleValue()));
+    }
+
     private void renderCostStatus(Order order) {
         CostStatusController costStatusController = getCostStatusController();
         costStatusController.setOrder(order);
diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardModel.java b/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardModel.java
index 5bfc81a12..1e0acbdf8 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardModel.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/DashboardModel.java
@@ -21,11 +21,13 @@ package org.libreplan.web.dashboard;
 
 import java.math.BigDecimal;
 import java.math.MathContext;
+import java.math.RoundingMode;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
 import java.util.EnumMap;
+import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -34,6 +36,9 @@ import java.util.Set;
 import org.joda.time.Days;
 import org.joda.time.LocalDate;
 import org.libreplan.business.orders.entities.Order;
+import org.libreplan.business.planner.chart.ContiguousDaysLine;
+import org.libreplan.business.planner.chart.ContiguousDaysLine.OnDay;
+import org.libreplan.business.planner.entities.IOrderResourceLoadCalculator;
 import org.libreplan.business.planner.entities.TaskDeadlineViolationStatusEnum;
 import org.libreplan.business.planner.entities.TaskElement;
 import org.libreplan.business.planner.entities.TaskGroup;
@@ -43,6 +48,8 @@ import org.libreplan.business.planner.entities.visitors.AccumulateTasksStatusVis
 import org.libreplan.business.planner.entities.visitors.CalculateFinishedTasksEstimationDeviationVisitor;
 import org.libreplan.business.planner.entities.visitors.CalculateFinishedTasksLagInCompletionVisitor;
 import org.libreplan.business.planner.entities.visitors.ResetTasksStatusVisitor;
+import org.libreplan.business.workingday.EffortDuration;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
@@ -595,4 +602,30 @@ public class DashboardModel implements IDashboardModel {
         return getRootTask() != null;
     }
 
-}
+    @Autowired
+    private IOrderResourceLoadCalculator resourceLoadCalculator;
+
+    @Override
+    public BigDecimal getOvertimeRatio() {
+        EffortDuration load = sumAll(resourceLoadCalculator.getAllLoad());
+        EffortDuration overload = sumAll(resourceLoadCalculator
+                .getAllOverload());
+        return EffortDuration.sum(load, overload)
+                .dividedByAndResultAsBigDecimal(load)
+                .setScale(2, RoundingMode.HALF_UP);
+    }
+
+    private EffortDuration sumAll(
+            ContiguousDaysLine<EffortDuration> contiguousDays) {
+        EffortDuration result = EffortDuration.zero();
+        Iterator<OnDay<EffortDuration>> iterator = contiguousDays
+                .iterator();
+        while (iterator.hasNext()) {
+            OnDay<EffortDuration> value = iterator.next();
+            EffortDuration effort = value.getValue();
+            result = EffortDuration.sum(result, effort);
+        }
+        return result;
+    }
+
+}
\ No newline at end of file
diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/IDashboardModel.java b/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/IDashboardModel.java
index 0411ad222..d0f5dc7e3 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/IDashboardModel.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/dashboard/IDashboardModel.java
@@ -77,6 +77,10 @@ interface IDashboardModel {
 
     Map<Interval, Integer> calculateTaskCompletion();
 
+    /* Resources KPI: "Overtime Ratio" */
     Map<Interval, Integer> calculateEstimationAccuracy();
 
+    // (Load + Overload) / Load
+    BigDecimal getOvertimeRatio();
+
 }
diff --git a/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul b/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul
index 61cefce43..cb83413e5 100644
--- a/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul
+++ b/libreplan-webapp/src/main/webapp/dashboard/_dashboardfororder.zul
@@ -113,6 +113,20 @@
                     <caption label="${i18n:_('Resources')}" />
                     <hbox>
                         <n:div id="estimation-accuracy" style="height:200px; width:580px;"></n:div>
+
+                        <!-- Overtime ratio -->
+                        <grid style="margin-top: 43px;" width="200px">
+                            <columns sizable="false">
+                                <column width="100px"/>
+                                <column />
+                            </columns>
+                            <rows>
+                                <row>
+                                    <label value="${i18n:_('Overtime ratio')}:"/>
+                                    <label id="lblOvertimeRatio" />
+                                </row>
+                            </rows>
+                        </grid>
                     </hbox>
                 </groupbox>