diff --git a/apps/openmw/mwclass/door.cpp b/apps/openmw/mwclass/door.cpp
index 3b9aae37d4..24866fe365 100644
--- a/apps/openmw/mwclass/door.cpp
+++ b/apps/openmw/mwclass/door.cpp
@@ -17,7 +17,6 @@
 #include "../mwworld/actionteleport.hpp"
 #include "../mwworld/actiontrap.hpp"
 #include "../mwworld/cellstore.hpp"
-#include "../mwworld/cellutils.hpp"
 #include "../mwworld/containerstore.hpp"
 #include "../mwworld/customdata.hpp"
 #include "../mwworld/esmstore.hpp"
diff --git a/apps/openmw/mwgui/mapwindow.cpp b/apps/openmw/mwgui/mapwindow.cpp
index 8c1e0263a3..cedd09b4b2 100644
--- a/apps/openmw/mwgui/mapwindow.cpp
+++ b/apps/openmw/mwgui/mapwindow.cpp
@@ -23,7 +23,6 @@
 #include "../mwbase/world.hpp"
 
 #include "../mwworld/cellstore.hpp"
-#include "../mwworld/cellutils.hpp"
 #include "../mwworld/esmstore.hpp"
 #include "../mwworld/player.hpp"
 #include "../mwworld/worldmodel.hpp"
@@ -277,7 +276,7 @@ namespace MWGui
 
         if (!mInterior)
         {
-            cellIndex = MWWorld::positionToCellIndex(worldX, worldY);
+            cellIndex = ESM::positionToCellIndex(worldX, worldY);
             nX = (worldX - cellSize * cellIndex.x()) / cellSize;
             // Image space is -Y up, cells are Y up
             nY = 1 - (worldY - cellSize * cellIndex.y()) / cellSize;
diff --git a/apps/openmw/mwgui/travelwindow.cpp b/apps/openmw/mwgui/travelwindow.cpp
index 8637e98a06..21d503aac8 100644
--- a/apps/openmw/mwgui/travelwindow.cpp
+++ b/apps/openmw/mwgui/travelwindow.cpp
@@ -15,7 +15,6 @@
 
 #include "../mwworld/actionteleport.hpp"
 #include "../mwworld/cellstore.hpp"
-#include "../mwworld/cellutils.hpp"
 #include "../mwworld/class.hpp"
 #include "../mwworld/containerstore.hpp"
 #include "../mwworld/esmstore.hpp"
@@ -126,8 +125,7 @@ namespace MWGui
         {
             std::string_view cellname = transport[i].mCellName;
             bool interior = true;
-            const osg::Vec2i cellIndex
-                = MWWorld::positionToCellIndex(transport[i].mPos.pos[0], transport[i].mPos.pos[1]);
+            const osg::Vec2i cellIndex = ESM::positionToCellIndex(transport[i].mPos.pos[0], transport[i].mPos.pos[1]);
             if (cellname.empty())
             {
                 MWWorld::CellStore& cell = MWBase::Environment::get().getWorldModel()->getExterior(
@@ -194,7 +192,7 @@ namespace MWGui
         MWBase::Environment::get().getWindowManager()->exitCurrentGuiMode();
 
         MWBase::Environment::get().getWindowManager()->fadeScreenOut(1);
-        osg::Vec2i posCell = MWWorld::positionToCellIndex(pos.pos[0], pos.pos[1]);
+        osg::Vec2i posCell = ESM::positionToCellIndex(pos.pos[0], pos.pos[1]);
         ESM::RefId cellId = ESM::Cell::generateIdForCell(!interior, cellname, posCell.x(), posCell.y());
 
         // Teleports any followers, too.
diff --git a/apps/openmw/mwlua/worldview.cpp b/apps/openmw/mwlua/worldview.cpp
index 9ccc1caaf8..f5699dff89 100644
--- a/apps/openmw/mwlua/worldview.cpp
+++ b/apps/openmw/mwlua/worldview.cpp
@@ -10,7 +10,6 @@
 
 #include "../mwclass/container.hpp"
 
-#include "../mwworld/cellutils.hpp"
 #include "../mwworld/class.hpp"
 #include "../mwworld/timestamp.hpp"
 #include "../mwworld/worldmodel.hpp"
diff --git a/apps/openmw/mwscript/transformationextensions.cpp b/apps/openmw/mwscript/transformationextensions.cpp
index a14a2f0ede..e493f3d911 100644
--- a/apps/openmw/mwscript/transformationextensions.cpp
+++ b/apps/openmw/mwscript/transformationextensions.cpp
@@ -14,7 +14,6 @@
 #include "../mwbase/world.hpp"
 
 #include "../mwworld/cellstore.hpp"
-#include "../mwworld/cellutils.hpp"
 #include "../mwworld/class.hpp"
 #include "../mwworld/manualref.hpp"
 #include "../mwworld/player.hpp"
@@ -401,7 +400,7 @@ namespace MWScript
                     store = &worldModel->getCell(cellID);
                     if (store->isExterior())
                     {
-                        const osg::Vec2i cellIndex = MWWorld::positionToCellIndex(x, y);
+                        const osg::Vec2i cellIndex = ESM::positionToCellIndex(x, y);
                         store = &worldModel->getExterior(
                             ESM::ExteriorCellIndex(cellIndex.x(), cellIndex.y(), store->getCell()->getWorldSpace()));
                     }
@@ -417,7 +416,7 @@ namespace MWScript
                     Log(Debug::Warning) << error;
                     if (!isPlayer)
                         return;
-                    const osg::Vec2i cellIndex = MWWorld::positionToCellIndex(x, y);
+                    const osg::Vec2i cellIndex = ESM::positionToCellIndex(x, y);
                     store = &worldModel->getExterior(
                         ESM::ExteriorCellIndex(cellIndex.x(), cellIndex.y(), store->getCell()->getWorldSpace()));
                 }
@@ -468,7 +467,7 @@ namespace MWScript
                 {
                     world->getPlayer().setTeleported(true);
                 }
-                const osg::Vec2i cellIndex = MWWorld::positionToCellIndex(x, y);
+                const osg::Vec2i cellIndex = ESM::positionToCellIndex(x, y);
 
                 // another morrowind oddity: player will be moved to the exterior cell at this location,
                 // non-player actors will move within the cell they are in.
@@ -569,7 +568,7 @@ namespace MWScript
                 MWWorld::CellStore* store = nullptr;
                 if (player.getCell()->isExterior())
                 {
-                    const osg::Vec2i cellIndex = MWWorld::positionToCellIndex(x, y);
+                    const osg::Vec2i cellIndex = ESM::positionToCellIndex(x, y);
                     store = &MWBase::Environment::get().getWorldModel()->getExterior(ESM::ExteriorCellIndex(
                         cellIndex.x(), cellIndex.y(), player.getCell()->getCell()->getWorldSpace()));
                 }
diff --git a/apps/openmw/mwworld/actionteleport.cpp b/apps/openmw/mwworld/actionteleport.cpp
index 03efcff742..926e958e95 100644
--- a/apps/openmw/mwworld/actionteleport.cpp
+++ b/apps/openmw/mwworld/actionteleport.cpp
@@ -11,7 +11,6 @@
 #include "../mwmechanics/creaturestats.hpp"
 
 #include "../mwworld/cellstore.hpp"
-#include "../mwworld/cellutils.hpp"
 #include "../mwworld/class.hpp"
 #include "../mwworld/worldmodel.hpp"
 
diff --git a/apps/openmw/mwworld/cellref.cpp b/apps/openmw/mwworld/cellref.cpp
index dcfc7ae6b7..917d9e16d5 100644
--- a/apps/openmw/mwworld/cellref.cpp
+++ b/apps/openmw/mwworld/cellref.cpp
@@ -10,7 +10,6 @@
 
 #include <apps/openmw/mwbase/environment.hpp>
 #include <apps/openmw/mwbase/world.hpp>
-#include <apps/openmw/mwworld/cellutils.hpp>
 #include <apps/openmw/mwworld/esmstore.hpp>
 
 namespace MWWorld
@@ -89,7 +88,7 @@ namespace MWWorld
             }
             else
             {
-                const osg::Vec2i index = positionToCellIndex(ref.mDoorDest.pos[0], ref.mDoorDest.pos[1]);
+                const osg::Vec2i index = ESM::positionToCellIndex(ref.mDoorDest.pos[0], ref.mDoorDest.pos[1]);
                 return ESM::RefId::esm3ExteriorCell(index.x(), index.y());
             }
         };
diff --git a/apps/openmw/mwworld/cellutils.hpp b/apps/openmw/mwworld/cellutils.hpp
deleted file mode 100644
index 978e358c8b..0000000000
--- a/apps/openmw/mwworld/cellutils.hpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef OPENMW_MWWORLD_CELLUTILS_H
-#define OPENMW_MWWORLD_CELLUTILS_H
-
-#include <components/misc/constants.hpp>
-
-#include <osg/Vec2i>
-
-#include <cmath>
-
-namespace MWWorld
-{
-    inline osg::Vec2i positionToCellIndex(float x, float y, bool esm4Ext = false)
-    {
-        const float cellSize = esm4Ext ? Constants::ESM4CellSizeInUnits : Constants::CellSizeInUnits;
-        return { static_cast<int>(std::floor(x / cellSize)), static_cast<int>(std::floor(y / cellSize)) };
-    }
-}
-
-#endif
diff --git a/apps/openmw/mwworld/scene.cpp b/apps/openmw/mwworld/scene.cpp
index 5dc35ef2d3..228f0892bb 100644
--- a/apps/openmw/mwworld/scene.cpp
+++ b/apps/openmw/mwworld/scene.cpp
@@ -40,7 +40,6 @@
 
 #include "cellpreloader.hpp"
 #include "cellstore.hpp"
-#include "cellutils.hpp"
 #include "cellvisitors.hpp"
 #include "class.hpp"
 #include "esmstore.hpp"
@@ -525,7 +524,7 @@ namespace MWWorld
             if (distance <= maxDistance)
                 return *currentGridCenter;
         }
-        return positionToCellIndex(pos.x(), pos.y(), isEsm4Ext);
+        return ESM::positionToCellIndex(pos.x(), pos.y(), isEsm4Ext);
     }
 
     void Scene::playerMoved(const osg::Vec3f& pos)
@@ -1293,7 +1292,7 @@ namespace MWWorld
             else
             {
                 osg::Vec3f pos = dest.mPos.asVec3();
-                const osg::Vec2i cellIndex = positionToCellIndex(pos.x(), pos.y());
+                const osg::Vec2i cellIndex = ESM::positionToCellIndex(pos.x(), pos.y());
                 preloadCell(mWorld.getWorldModel().getExterior(
                                 ESM::ExteriorCellIndex(cellIndex.x(), cellIndex.y(), extWorldspace)),
                     true);
diff --git a/apps/openmw/mwworld/worldimp.cpp b/apps/openmw/mwworld/worldimp.cpp
index 5d889f5a44..40d774d7d4 100644
--- a/apps/openmw/mwworld/worldimp.cpp
+++ b/apps/openmw/mwworld/worldimp.cpp
@@ -95,7 +95,6 @@
 #include "projectilemanager.hpp"
 #include "weather.hpp"
 
-#include "cellutils.hpp"
 #include "contentloader.hpp"
 #include "esmloader.hpp"
 
@@ -380,7 +379,7 @@ namespace MWWorld
                 pos.rot[1] = 0;
                 pos.rot[2] = 0;
 
-                osg::Vec2i exteriorCellPos = positionToCellIndex(pos.pos[0], pos.pos[1]);
+                osg::Vec2i exteriorCellPos = ESM::positionToCellIndex(pos.pos[0], pos.pos[1]);
                 ESM::RefId cellId = ESM::RefId::esm3ExteriorCell(exteriorCellPos.x(), exteriorCellPos.y());
                 mWorldScene->changeToExteriorCell(cellId, pos, true);
             }
@@ -1245,7 +1244,7 @@ namespace MWWorld
 
     MWWorld::Ptr World::moveObject(const Ptr& ptr, const osg::Vec3f& position, bool movePhysics, bool moveToActive)
     {
-        const osg::Vec2i index = positionToCellIndex(position.x(), position.y());
+        const osg::Vec2i index = ESM::positionToCellIndex(position.x(), position.y());
 
         CellStore* cell = ptr.getCell();
         ESM::RefId worldspaceId
@@ -2064,7 +2063,7 @@ namespace MWWorld
             throw std::runtime_error("copyObjectToCell(): cannot copy object to null cell");
         if (cell->isExterior())
         {
-            const osg::Vec2i index = positionToCellIndex(pos.pos[0], pos.pos[1]);
+            const osg::Vec2i index = ESM::positionToCellIndex(pos.pos[0], pos.pos[1]);
             cell = &mWorldModel.getExterior(
                 ESM::ExteriorCellIndex(index.x(), index.y(), cell->getCell()->getWorldSpace()));
         }
diff --git a/apps/openmw/mwworld/worldmodel.cpp b/apps/openmw/mwworld/worldmodel.cpp
index 16564b4e91..d0c47dd6b1 100644
--- a/apps/openmw/mwworld/worldmodel.cpp
+++ b/apps/openmw/mwworld/worldmodel.cpp
@@ -16,7 +16,6 @@
 #include "../mwbase/world.hpp"
 
 #include "cellstore.hpp"
-#include "cellutils.hpp"
 #include "esmstore.hpp"
 
 namespace
@@ -333,7 +332,7 @@ MWWorld::CellStore& MWWorld::WorldModel::getCellByPosition(
 {
     if (cellInSameWorldSpace && !cellInSameWorldSpace->isExterior())
         return *cellInSameWorldSpace;
-    const osg::Vec2i cellIndex = positionToCellIndex(pos.x(), pos.y());
+    const osg::Vec2i cellIndex = ESM::positionToCellIndex(pos.x(), pos.y());
     ESM::RefId exteriorWorldspace
         = cellInSameWorldSpace ? cellInSameWorldSpace->getCell()->getWorldSpace() : ESM::Cell::sDefaultWorldspaceId;
     return getExterior(ESM::ExteriorCellIndex(cellIndex.x(), cellIndex.y(), exteriorWorldspace));
diff --git a/components/esm/util.hpp b/components/esm/util.hpp
index d6d9feb3c4..b5eeb1fa65 100644
--- a/components/esm/util.hpp
+++ b/components/esm/util.hpp
@@ -1,7 +1,10 @@
 #ifndef OPENMW_ESM_UTIL_H
 #define OPENMW_ESM_UTIL_H
+#include <cmath>
 
 #include <osg/Quat>
+#include <osg/Vec2>
+#include <osg/Vec2i>
 #include <osg/Vec3f>
 
 #include <components/esm/refid.hpp>
@@ -80,6 +83,13 @@ namespace ESM
     {
         return isESM4Ext ? Constants::ESM4CellSizeInUnits : Constants::CellSizeInUnits;
     }
+
+    inline osg::Vec2i positionToCellIndex(float x, float y, bool esm4Ext = false)
+    {
+        const float cellSize = esm4Ext ? Constants::ESM4CellSizeInUnits : Constants::CellSizeInUnits;
+        return { static_cast<int>(std::floor(x / cellSize)), static_cast<int>(std::floor(y / cellSize)) };
+    }
+
 }
 
 namespace std