diff --git a/core/include/Data/ArrayData.h b/core/include/Data/ArrayData.h
index a1aad29..ab14657 100644
--- a/core/include/Data/ArrayData.h
+++ b/core/include/Data/ArrayData.h
@@ -273,6 +273,13 @@ public:
         return m_Data.size() / m_NbComponents;
     }
 
+    /// @return the total size (i.e. number of values) of the array data
+    int totalSize() const
+    {
+        QReadLocker locker{&m_Lock};
+        return m_Data.size();
+    }
+
     std::shared_ptr<ArrayData<Dim> > sort(const std::vector<int> &sortPermutation)
     {
         QReadLocker locker{&m_Lock};
diff --git a/core/include/Data/DataSeries.h b/core/include/Data/DataSeries.h
index 63684ea..1669c91 100644
--- a/core/include/Data/DataSeries.h
+++ b/core/include/Data/DataSeries.h
@@ -146,6 +146,7 @@ public:
     /// @sa IDataSeries::valuesUnit()
     Unit valuesUnit() const override { return m_ValuesUnit; }
 
+    int nbPoints() const override { return m_XAxisData->totalSize() + m_ValuesData->totalSize(); }
 
     SqpRange range() const override
     {
diff --git a/core/include/Data/IDataSeries.h b/core/include/Data/IDataSeries.h
index aea7206..f7c2aa1 100644
--- a/core/include/Data/IDataSeries.h
+++ b/core/include/Data/IDataSeries.h
@@ -64,6 +64,10 @@ public:
     virtual std::shared_ptr<IDataSeries> subDataSeries(const SqpRange &range) = 0;
 
     virtual std::unique_ptr<IDataSeries> clone() const = 0;
+
+    /// @return the total number of points contained in the data series
+    virtual int nbPoints() const = 0;
+
     virtual SqpRange range() const = 0;
 
     // ///////// //
diff --git a/core/include/Variable/Variable.h b/core/include/Variable/Variable.h
index 5b731ab..eb9b144 100644
--- a/core/include/Variable/Variable.h
+++ b/core/include/Variable/Variable.h
@@ -40,6 +40,10 @@ public:
     SqpRange cacheRange() const noexcept;
     void setCacheRange(const SqpRange &cacheRange) noexcept;
 
+    /// @return the number of points hold by the variable. The number of points is updated each time
+    /// the data series changes
+    int nbPoints() const noexcept;
+
     /// Returns the real range of the variable, i.e. the min and max x-axis values of the data
     /// series between the range of the variable. The real range is updated each time the variable
     /// range or the data series changed
diff --git a/core/src/Variable/Variable.cpp b/core/src/Variable/Variable.cpp
index 64874ba..ed9c248 100644
--- a/core/src/Variable/Variable.cpp
+++ b/core/src/Variable/Variable.cpp
@@ -16,7 +16,8 @@ struct Variable::VariablePrivate {
               m_Range{dateTime},
               m_Metadata{metadata},
               m_DataSeries{nullptr},
-              m_RealRange{INVALID_RANGE}
+              m_RealRange{INVALID_RANGE},
+              m_NbPoints{0}
     {
     }
 
@@ -25,7 +26,8 @@ struct Variable::VariablePrivate {
               m_Range{other.m_Range},
               m_Metadata{other.m_Metadata},
               m_DataSeries{other.m_DataSeries != nullptr ? other.m_DataSeries->clone() : nullptr},
-              m_RealRange{other.m_RealRange}
+              m_RealRange{other.m_RealRange},
+              m_NbPoints{other.m_NbPoints}
     {
     }
 
@@ -39,8 +41,11 @@ struct Variable::VariablePrivate {
             m_DataSeries->purge(m_CacheRange.m_TStart, m_CacheRange.m_TEnd);
         }
         updateRealRange();
+        updateNbPoints();
     }
 
+    void updateNbPoints() { m_NbPoints = m_DataSeries ? m_DataSeries->nbPoints() : 0; }
+
     /// Updates real range according to current variable range and data series
     void updateRealRange()
     {
@@ -67,6 +72,7 @@ struct Variable::VariablePrivate {
     QVariantHash m_Metadata;
     std::shared_ptr<IDataSeries> m_DataSeries;
     SqpRange m_RealRange;
+    int m_NbPoints;
 
     QReadWriteLock m_Lock;
 };
@@ -135,6 +141,11 @@ void Variable::setCacheRange(const SqpRange &cacheRange) noexcept
     impl->unlock();
 }
 
+int Variable::nbPoints() const noexcept
+{
+    return impl->m_NbPoints;
+}
+
 SqpRange Variable::realRange() const noexcept
 {
     return impl->m_RealRange;
diff --git a/core/src/Variable/VariableModel.cpp b/core/src/Variable/VariableModel.cpp
index ad88e27..13e4d70 100644
--- a/core/src/Variable/VariableModel.cpp
+++ b/core/src/Variable/VariableModel.cpp
@@ -17,10 +17,11 @@ namespace {
 const auto NAME_COLUMN = 0;
 const auto TSTART_COLUMN = 1;
 const auto TEND_COLUMN = 2;
-const auto UNIT_COLUMN = 3;
-const auto MISSION_COLUMN = 4;
-const auto PLUGIN_COLUMN = 5;
-const auto NB_COLUMNS = 6;
+const auto NBPOINTS_COLUMN = 3;
+const auto UNIT_COLUMN = 4;
+const auto MISSION_COLUMN = 5;
+const auto PLUGIN_COLUMN = 6;
+const auto NB_COLUMNS = 7;
 
 // Column properties
 const auto DEFAULT_HEIGHT = 25;
@@ -39,9 +40,10 @@ struct ColumnProperties {
 };
 
 const auto COLUMN_PROPERTIES = QHash<int, ColumnProperties>{
-    {NAME_COLUMN, {QObject::tr("Name")}},       {TSTART_COLUMN, {QObject::tr("tStart"), 180}},
-    {TEND_COLUMN, {QObject::tr("tEnd"), 180}},  {UNIT_COLUMN, {QObject::tr("Unit")}},
-    {MISSION_COLUMN, {QObject::tr("Mission")}}, {PLUGIN_COLUMN, {QObject::tr("Plugin")}}};
+    {NAME_COLUMN, {QObject::tr("Name")}},      {TSTART_COLUMN, {QObject::tr("tStart"), 180}},
+    {TEND_COLUMN, {QObject::tr("tEnd"), 180}}, {NBPOINTS_COLUMN, {QObject::tr("Nb points")}},
+    {UNIT_COLUMN, {QObject::tr("Unit")}},      {MISSION_COLUMN, {QObject::tr("Mission")}},
+    {PLUGIN_COLUMN, {QObject::tr("Plugin")}}};
 
 /// Format for datetimes
 const auto DATETIME_FORMAT = QStringLiteral("dd/MM/yyyy \nhh:mm:ss:zzz");
@@ -198,6 +200,8 @@ QVariant VariableModel::data(const QModelIndex &index, int role) const
                                ? DateUtils::dateTime(range.m_TEnd).toString(DATETIME_FORMAT)
                                : QVariant{};
                 }
+                case NBPOINTS_COLUMN:
+                    return variable->nbPoints();
                 case UNIT_COLUMN:
                     return variable->metadata().value(QStringLiteral("units"));
                 case MISSION_COLUMN: