diff --git a/src/components/map/ZoomPanWrapper.js b/src/components/map/ZoomPanWrapper.js
index 2a5295e..888acdf 100644
--- a/src/components/map/ZoomPanWrapper.js
+++ b/src/components/map/ZoomPanWrapper.js
@@ -65,8 +65,8 @@ export default function ZoomPanWrapper({children}) {
     const handleMove = (e) => {
         const cx = e.movementX / cameraRef.current.zoom;
         const cy = e.movementY / cameraRef.current.zoom;
-        const cos = Math.cos(cameraRef.current.rotation * Math.PI / 180);
-        const sin = Math.sin(cameraRef.current.rotation * Math.PI / 180);
+        const cos = Math.cos(AngleHelper.degToRad(cameraRef.current.rotation));
+        const sin = Math.sin(AngleHelper.degToRad(cameraRef.current.rotation));
 
         cameraRef.current.x -= cx * cos + cy * sin;
         cameraRef.current.y -= cy * cos - cx * sin;
@@ -130,8 +130,8 @@ export default function ZoomPanWrapper({children}) {
         const offY = (ncy - cy) / newZoom;
 
         // update camera position so the cursor stays in the same place
-        const cos = Math.cos(cameraRef.current.rotation * Math.PI / 180);
-        const sin = Math.sin(cameraRef.current.rotation * Math.PI / 180);
+        const cos = Math.cos(AngleHelper.degToRad(cameraRef.current.rotation));
+        const sin = Math.sin(AngleHelper.degToRad(cameraRef.current.rotation));
         cameraRef.current.x += offX * cos + offY * sin;
         cameraRef.current.y += offY * cos - offX * sin;
 
diff --git a/src/components/map/distance-meter/DistanceMeterText.js b/src/components/map/distance-meter/DistanceMeterText.js
index 597c102..25ebf24 100644
--- a/src/components/map/distance-meter/DistanceMeterText.js
+++ b/src/components/map/distance-meter/DistanceMeterText.js
@@ -11,7 +11,7 @@ export default function DistanceMeterText(props) {
     const dx = end[0] - start[0];
     const dy = end[1] - start[1];
     const len = Math.sqrt(dx * dx + dy * dy);
-    const angle = Math.atan2(dy, dx) * (180 / Math.PI);
+    const angle = AngleHelper.radToDeg(Math.atan2(dy, dx));
     const rotation = AngleHelper.normalizeDegAngle(mapRotation + angle);
     const upsideDown = rotation >= 90 && rotation <= 270;
     const x = cx + len / 2;
diff --git a/src/components/map/distance-meter/get-svg-coords.js b/src/components/map/distance-meter/get-svg-coords.js
index af12a71..7f94106 100644
--- a/src/components/map/distance-meter/get-svg-coords.js
+++ b/src/components/map/distance-meter/get-svg-coords.js
@@ -1,10 +1,11 @@
 import { getCurrentCamera, getCurrentClientRect, getCurrentViewBox } from "../../../hooks/useZoomPubSub";
+import AngleHelper from "../../../helpers/angleHelper";
 
 export function getSVGCoords(event) {
     const { left, top } = getCurrentClientRect();
     const { x, y, zoom, rotation } = getCurrentCamera();
     const { w, h } = getCurrentViewBox();
-    
+
     // screen space cursor pos
     const cx = event.clientX - left;
     const cy = event.clientY - top;
@@ -14,8 +15,8 @@ export function getSVGCoords(event) {
     const dy = -(h / 2 - cy) / zoom;
 
     // apply camera rotation
-    const cos = Math.cos(rotation * Math.PI / 180);
-    const sin = Math.sin(rotation * Math.PI / 180);
+    const cos = Math.cos(AngleHelper.degToRad(rotation));
+    const sin = Math.sin(AngleHelper.degToRad(rotation));
     const rdx = dx * cos + dy * sin;
     const rdy = dy * cos - dx * sin;
 
diff --git a/src/model/misc/misc.js b/src/model/misc/misc.js
index d3743ca..9786e61 100644
--- a/src/model/misc/misc.js
+++ b/src/model/misc/misc.js
@@ -39,7 +39,7 @@ export default class Misc extends SceneryObject {
     }
 
     static applyGroupTransforms(localPos, localRot, miscGroups) {
-        const localRotRad = localRot.multiply(Math.PI / 180);
+        const localRotRad = AngleHelper.vectorDegToRad(localRot);
         let worldQuat = Quaternion.fromEulerAnglesRad(localRotRad).normalize();
         let worldPos = localPos.clone();
 
diff --git a/src/model/route.js b/src/model/route.js
index f26e541..c0b663a 100644
--- a/src/model/route.js
+++ b/src/model/route.js
@@ -32,7 +32,7 @@ export default class Route extends SceneryObject {
         });
 
         this.offsets = this._getOffsets();
-        this.end_angle_rad = this.rot.y * Math.PI / 180;
+        this.end_angle_rad = AngleHelper.degToRad(this.rot.y);
         this.end_center = this.pos.clone();
         this.points = [this.pos.clone()];
     }