diff --git a/src/QtLocationPlugin/ElevationMapProvider.cpp b/src/QtLocationPlugin/ElevationMapProvider.cpp
index a2e38332991f48955e676d5ca4180b77e5c351af..03af2faece64aa7a900f89ea0970f838958e3446 100644
--- a/src/QtLocationPlugin/ElevationMapProvider.cpp
+++ b/src/QtLocationPlugin/ElevationMapProvider.cpp
@@ -37,3 +37,22 @@ AirmapElevationProvider::_getURL(int x, int y, int zoom,
         .arg(static_cast<double>(x + 1) * srtm1TileSize - 180.0);
 }
 
+QGCTileSet AirmapElevationProvider::getTileCount(int zoom, double topleftLon,
+                                                 double topleftLat,
+                                                 double bottomRightLon,
+                                                 double bottomRightLat) {
+    QGCTileSet set;
+    set.tileX0 = long2tileX(topleftLon, zoom);
+    set.tileY0 = lat2tileY(bottomRightLat, zoom);
+    set.tileX1 = long2tileX(bottomRightLon, zoom);
+    set.tileY1 = lat2tileY(topleftLat, zoom);
+
+    set.tileCount = (static_cast<quint64>(set.tileX1) -
+                     static_cast<quint64>(set.tileX0) + 1) *
+                    (static_cast<quint64>(set.tileY1) -
+                     static_cast<quint64>(set.tileY0) + 1);
+
+    set.tileSize = getAverageSize() * set.tileCount;
+
+    return set;
+}
diff --git a/src/QtLocationPlugin/ElevationMapProvider.h b/src/QtLocationPlugin/ElevationMapProvider.h
index 076dc51a076326c2ac262d6daf54cbd5c1159212..d23ad830ef779e6cf519e8015390c48559c8c17e 100644
--- a/src/QtLocationPlugin/ElevationMapProvider.h
+++ b/src/QtLocationPlugin/ElevationMapProvider.h
@@ -41,6 +41,9 @@ class AirmapElevationProvider : public ElevationProvider {
 
     int long2tileX(double lon, int z);
     int lat2tileY(double lat, int z);
+    QGCTileSet getTileCount(int zoom, double topleftLon,
+                                     double topleftLat, double bottomRightLon,
+                                     double bottomRightLat);
 
 
   protected:
diff --git a/src/QtLocationPlugin/MapProvider.cpp b/src/QtLocationPlugin/MapProvider.cpp
index 666008ea1d539d161d70b187dcfac96092ab2312..2d1a8fee3df6039f1a28c8455a31f3ce27905960 100644
--- a/src/QtLocationPlugin/MapProvider.cpp
+++ b/src/QtLocationPlugin/MapProvider.cpp
@@ -74,4 +74,22 @@ int MapProvider::lat2tileY(double lat, int z) {
         2.0 * pow(2.0, z)));
 }
 
-bool MapProvider::_isElevationProvider(){return false;}
+bool MapProvider::_isElevationProvider() { return false; }
+
+QGCTileSet MapProvider::getTileCount(int zoom, double topleftLon,
+                                     double topleftLat, double bottomRightLon,
+                                     double bottomRightLat) {
+    QGCTileSet set;
+    set.tileX0 = long2tileX(topleftLon, zoom);
+    set.tileY0 = lat2tileY(topleftLat, zoom);
+    set.tileX1 = long2tileX(bottomRightLon, zoom);
+    set.tileY1 = lat2tileY(bottomRightLat, zoom);
+
+    set.tileCount = (static_cast<quint64>(set.tileX1) -
+                     static_cast<quint64>(set.tileX0) + 1) *
+                    (static_cast<quint64>(set.tileY1) -
+                     static_cast<quint64>(set.tileY0) + 1);
+
+    set.tileSize = getAverageSize() * set.tileCount;
+    return set;
+}
diff --git a/src/QtLocationPlugin/MapProvider.h b/src/QtLocationPlugin/MapProvider.h
index 79c1c6df14541a1e08c23edec4e0139307b76d89..4916fd74739fb4c5733207099afb572419342d52 100644
--- a/src/QtLocationPlugin/MapProvider.h
+++ b/src/QtLocationPlugin/MapProvider.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "QGCTileSet.h" 
+
 #include <QByteArray>
 #include <QNetworkProxy>
 #include <QNetworkReply>
@@ -35,6 +37,10 @@ class MapProvider : public QObject {
 
 	virtual bool _isElevationProvider();
 
+    virtual QGCTileSet getTileCount(int zoom, double topleftLon,
+                                     double topleftLat, double bottomRightLon,
+                                     double bottomRightLat);
+
   protected:
     QString _tileXYToQuadKey(int tileX, int tileY, int levelOfDetail);
     int     _getServerNum(int x, int y, int max);
diff --git a/src/QtLocationPlugin/QGCLocationPlugin.pri b/src/QtLocationPlugin/QGCLocationPlugin.pri
index b12ade44b4b6bf4f02e3ba8b9003907fff7d8733..6c62910ad39e846692aa68006e35faeb1aabe9e4 100644
--- a/src/QtLocationPlugin/QGCLocationPlugin.pri
+++ b/src/QtLocationPlugin/QGCLocationPlugin.pri
@@ -29,6 +29,8 @@ HEADERS += \
     $$PWD/GenericMapProvider.h \
     $$PWD/EsriMapProvider.h \
     $$PWD/MapboxMapProvider.h \
+    $$PWD/QGCTileSet.h \
+
 
 SOURCES += \
     $$PWD/QGCMapEngine.cpp \
diff --git a/src/QtLocationPlugin/QGCMapEngine.cpp b/src/QtLocationPlugin/QGCMapEngine.cpp
index 0eff56253aa13b21d18458ee27b2ca5b1ce08ec2..977a0bf823877087bebe3ebdbb6221d8d6eda328 100644
--- a/src/QtLocationPlugin/QGCMapEngine.cpp
+++ b/src/QtLocationPlugin/QGCMapEngine.cpp
@@ -250,22 +250,8 @@ QGCMapEngine::getTileCount(int zoom, double topleftLon, double topleftLat, doubl
 {
 	if(zoom <  1) zoom = 1;
 	if(zoom > MAX_MAP_ZOOM) zoom = MAX_MAP_ZOOM;
-	QGCTileSet set;
-	if(mapType != "Airmap Elevation"){	
-		set.tileX0 = getQGCMapEngine()->urlFactory()->long2tileX(mapType, topleftLon,     zoom);
-		set.tileY0 = getQGCMapEngine()->urlFactory()->lat2tileY(mapType, topleftLat,      zoom);
-		set.tileX1 = getQGCMapEngine()->urlFactory()->long2tileX(mapType, bottomRightLon, zoom);
-		set.tileY1 = getQGCMapEngine()->urlFactory()->lat2tileY(mapType, bottomRightLat,  zoom);
-	}else{
-		set.tileX0 = getQGCMapEngine()->urlFactory()->long2tileX(mapType, topleftLon,     zoom);
-		set.tileY0 = getQGCMapEngine()->urlFactory()->lat2tileY(mapType, bottomRightLat,      zoom);
-		set.tileX1 = getQGCMapEngine()->urlFactory()->long2tileX(mapType, bottomRightLon, zoom);
-		set.tileY1 = getQGCMapEngine()->urlFactory()->lat2tileY(mapType, topleftLat,  zoom);
-
-	}
-	set.tileCount = (static_cast<quint64>(set.tileX1) - static_cast<quint64>(set.tileX0) + 1) * (static_cast<quint64>(set.tileY1) - static_cast<quint64>(set.tileY0) + 1);
-	set.tileSize  = getQGCMapEngine()->urlFactory()->averageSizeForType(mapType) * set.tileCount;
-	return set;
+
+    return getQGCMapEngine()->urlFactory()->getTileCount(zoom, topleftLon, topleftLat, bottomRightLon, bottomRightLat, mapType);
 }
 
 
diff --git a/src/QtLocationPlugin/QGCMapEngine.h b/src/QtLocationPlugin/QGCMapEngine.h
index 643b8da0c349e72fa02f6ffe99a6f41e5a540d98..e6813a6aed49e2196702a4849c7ed2ce72f9c220 100644
--- a/src/QtLocationPlugin/QGCMapEngine.h
+++ b/src/QtLocationPlugin/QGCMapEngine.h
@@ -25,41 +25,6 @@
 #include "QGCMapEngineData.h"
 #include "QGCTileCacheWorker.h"
 
-//-----------------------------------------------------------------------------
-class QGCTileSet
-{
-public:
-    QGCTileSet()
-    {
-        clear();
-    }
-    QGCTileSet& operator += (QGCTileSet& other)
-    {
-        tileX0      += other.tileX0;
-        tileX1      += other.tileX1;
-        tileY0      += other.tileY0;
-        tileY1      += other.tileY1;
-        tileCount   += other.tileCount;
-        tileSize    += other.tileSize;
-        return *this;
-    }
-    void clear()
-    {
-        tileX0      = 0;
-        tileX1      = 0;
-        tileY0      = 0;
-        tileY1      = 0;
-        tileCount   = 0;
-        tileSize    = 0;
-    }
-
-    int         tileX0;
-    int         tileX1;
-    int         tileY0;
-    int         tileY1;
-    quint64     tileCount;
-    quint64     tileSize;
-};
 
 //-----------------------------------------------------------------------------
 class QGCMapEngine : public QObject
diff --git a/src/QtLocationPlugin/QGCMapUrlEngine.cpp b/src/QtLocationPlugin/QGCMapUrlEngine.cpp
index d0156eff06764eb28eb9e53747a4c9c1ba7de51f..a8b6869de51a4232e71aee3898c2760a839db37d 100644
--- a/src/QtLocationPlugin/QGCMapUrlEngine.cpp
+++ b/src/QtLocationPlugin/QGCMapUrlEngine.cpp
@@ -173,3 +173,24 @@ UrlFactory::lat2tileY(QString mapType, double lat, int z)
     return _providersTable[mapType]->lat2tileY(lat, z);
 }
 
+
+//-----------------------------------------------------------------------------
+QGCTileSet
+UrlFactory::getTileCount(int zoom, double topleftLon, double topleftLat, double bottomRightLon, double bottomRightLat, QString mapType)
+{
+	//QGCTileSet set;
+	//if(mapType != "Airmap Elevation"){	
+	//	set.tileX0 = long2tileX(mapType, topleftLon,     zoom);
+	//	set.tileY0 = lat2tileY(mapType, topleftLat,      zoom);
+	//	set.tileX1 = long2tileX(mapType, bottomRightLon, zoom);
+	//	set.tileY1 = lat2tileY(mapType, bottomRightLat,  zoom);
+	//}else{
+	//	set.tileX0 = getQGCMapEngine()->urlFactory()->long2tileX(mapType, topleftLon,     zoom);
+	//	set.tileY0 = getQGCMapEngine()->urlFactory()->lat2tileY(mapType, bottomRightLat,      zoom);
+	//	set.tileX1 = getQGCMapEngine()->urlFactory()->long2tileX(mapType, bottomRightLon, zoom);
+	//	set.tileY1 = getQGCMapEngine()->urlFactory()->lat2tileY(mapType, topleftLat,  zoom);
+	//}
+	//set.tileCount = (static_cast<quint64>(set.tileX1) - static_cast<quint64>(set.tileX0) + 1) * (static_cast<quint64>(set.tileY1) - static_cast<quint64>(set.tileY0) + 1);
+	//set.tileSize  = getQGCMapEngine()->urlFactory()->averageSizeForType(mapType) * set.tileCount;
+	return _providersTable[mapType]->getTileCount(zoom, topleftLon, topleftLat, bottomRightLon, bottomRightLat);
+}
diff --git a/src/QtLocationPlugin/QGCMapUrlEngine.h b/src/QtLocationPlugin/QGCMapUrlEngine.h
index 960a5c9713af46819e4b67e075cfb4427854ba34..2a0563be06d6d4189b0ad59724e80946b4bd4f97 100644
--- a/src/QtLocationPlugin/QGCMapUrlEngine.h
+++ b/src/QtLocationPlugin/QGCMapUrlEngine.h
@@ -49,7 +49,11 @@ public:
     int getIdFromType(QString type);
     QString getTypeFromId(int id);
 
-private:
+    QGCTileSet getTileCount(int zoom, double topleftLon, double topleftLat,
+                            double bottomRightLon, double bottomRightLat,
+                            QString mapType);
+
+  private:
     int             _timeout;
     QHash<QString, MapProvider*> _providersTable;
     void registerProvider(QString Name, MapProvider* provider);
diff --git a/src/QtLocationPlugin/QGCTileSet.h b/src/QtLocationPlugin/QGCTileSet.h
new file mode 100644
index 0000000000000000000000000000000000000000..fc38a4f52d4984ccfde564fe1840a37ddfb65a44
--- /dev/null
+++ b/src/QtLocationPlugin/QGCTileSet.h
@@ -0,0 +1,38 @@
+#pragma once
+#include <QString>
+
+//-----------------------------------------------------------------------------
+class QGCTileSet
+{
+public:
+    QGCTileSet()
+    {
+        clear();
+    }
+    QGCTileSet& operator += (QGCTileSet& other)
+    {
+        tileX0      += other.tileX0;
+        tileX1      += other.tileX1;
+        tileY0      += other.tileY0;
+        tileY1      += other.tileY1;
+        tileCount   += other.tileCount;
+        tileSize    += other.tileSize;
+        return *this;
+    }
+    void clear()
+    {
+        tileX0      = 0;
+        tileX1      = 0;
+        tileY0      = 0;
+        tileY1      = 0;
+        tileCount   = 0;
+        tileSize    = 0;
+    }
+
+    int         tileX0;
+    int         tileX1;
+    int         tileY0;
+    int         tileY1;
+    quint64     tileCount;
+    quint64     tileSize;
+};