diff --git a/packages/flutter/lib/src/gestures/converter.dart b/packages/flutter/lib/src/gestures/converter.dart
index 8e8fecd..63d5f1e 100644
--- a/packages/flutter/lib/src/gestures/converter.dart
+++ b/packages/flutter/lib/src/gestures/converter.dart
@@ -63,6 +63,10 @@
   static Iterable<PointerEvent> expand(Iterable<ui.PointerData> data, double devicePixelRatio) sync* {
     for (ui.PointerData datum in data) {
       final Offset position = new Offset(datum.physicalX, datum.physicalY) / devicePixelRatio;
+      final double radiusMinor = _toLogicalPixels(datum.radiusMinor, devicePixelRatio);
+      final double radiusMajor = _toLogicalPixels(datum.radiusMajor, devicePixelRatio);
+      final double radiusMin = _toLogicalPixels(datum.radiusMin, devicePixelRatio);
+      final double radiusMax = _toLogicalPixels(datum.radiusMax, devicePixelRatio);
       final Duration timeStamp = datum.timeStamp;
       final PointerDeviceKind kind = datum.kind;
       assert(datum.change != null);
@@ -81,8 +85,8 @@
             pressureMax: datum.pressureMax,
             distance: datum.distance,
             distanceMax: datum.distanceMax,
-            radiusMin: datum.radiusMin,
-            radiusMax: datum.radiusMax,
+            radiusMin: radiusMin,
+            radiusMax: radiusMax,
             orientation: datum.orientation,
             tilt: datum.tilt
           );
@@ -103,8 +107,8 @@
               pressureMax: datum.pressureMax,
               distance: datum.distance,
               distanceMax: datum.distanceMax,
-              radiusMin: datum.radiusMin,
-              radiusMax: datum.radiusMax,
+              radiusMin: radiusMin,
+              radiusMax: radiusMax,
               orientation: datum.orientation,
               tilt: datum.tilt
             );
@@ -123,10 +127,10 @@
             pressureMax: datum.pressureMax,
             distance: datum.distance,
             distanceMax: datum.distanceMax,
-            radiusMajor: datum.radiusMajor,
-            radiusMinor: datum.radiusMajor,
-            radiusMin: datum.radiusMin,
-            radiusMax: datum.radiusMax,
+            radiusMajor: radiusMajor,
+            radiusMinor: radiusMinor,
+            radiusMin: radiusMin,
+            radiusMax: radiusMax,
             orientation: datum.orientation,
             tilt: datum.tilt
           );
@@ -148,8 +152,8 @@
               pressureMax: datum.pressureMax,
               distance: datum.distance,
               distanceMax: datum.distanceMax,
-              radiusMin: datum.radiusMin,
-              radiusMax: datum.radiusMax,
+              radiusMin: radiusMin,
+              radiusMax: radiusMax,
               orientation: datum.orientation,
               tilt: datum.tilt
             );
@@ -172,10 +176,10 @@
               pressureMax: datum.pressureMax,
               distance: datum.distance,
               distanceMax: datum.distanceMax,
-              radiusMajor: datum.radiusMajor,
-              radiusMinor: datum.radiusMajor,
-              radiusMin: datum.radiusMin,
-              radiusMax: datum.radiusMax,
+              radiusMajor: radiusMajor,
+              radiusMinor: radiusMinor,
+              radiusMin: radiusMin,
+              radiusMax: radiusMax,
               orientation: datum.orientation,
               tilt: datum.tilt,
               synthesized: true,
@@ -196,10 +200,10 @@
             pressureMin: datum.pressureMin,
             pressureMax: datum.pressureMax,
             distanceMax: datum.distanceMax,
-            radiusMajor: datum.radiusMajor,
-            radiusMinor: datum.radiusMajor,
-            radiusMin: datum.radiusMin,
-            radiusMax: datum.radiusMax,
+            radiusMajor: radiusMajor,
+            radiusMinor: radiusMinor,
+            radiusMin: radiusMin,
+            radiusMax: radiusMax,
             orientation: datum.orientation,
             tilt: datum.tilt
           );
@@ -226,10 +230,10 @@
             pressureMin: datum.pressureMin,
             pressureMax: datum.pressureMax,
             distanceMax: datum.distanceMax,
-            radiusMajor: datum.radiusMajor,
-            radiusMinor: datum.radiusMajor,
-            radiusMin: datum.radiusMin,
-            radiusMax: datum.radiusMax,
+            radiusMajor: radiusMajor,
+            radiusMinor: radiusMinor,
+            radiusMin: radiusMin,
+            radiusMax: radiusMax,
             orientation: datum.orientation,
             tilt: datum.tilt
           );
@@ -260,10 +264,10 @@
               pressureMin: datum.pressureMin,
               pressureMax: datum.pressureMax,
               distanceMax: datum.distanceMax,
-              radiusMajor: datum.radiusMajor,
-              radiusMinor: datum.radiusMajor,
-              radiusMin: datum.radiusMin,
-              radiusMax: datum.radiusMax,
+              radiusMajor: radiusMajor,
+              radiusMinor: radiusMinor,
+              radiusMin: radiusMin,
+              radiusMax: radiusMax,
               orientation: datum.orientation,
               tilt: datum.tilt,
               synthesized: true,
@@ -281,11 +285,15 @@
               position: position,
               buttons: datum.buttons,
               obscured: datum.obscured,
+              pressure: datum.pressure,
+              pressureMin: datum.pressureMin,
               pressureMax: datum.pressureMax,
               distance: datum.distance,
               distanceMax: datum.distanceMax,
-              radiusMin: datum.radiusMin,
-              radiusMax: datum.radiusMax,
+              radiusMajor: radiusMajor,
+              radiusMinor: radiusMinor,
+              radiusMin: radiusMin,
+              radiusMax: radiusMax,
               orientation: datum.orientation,
               tilt: datum.tilt
             );
@@ -302,8 +310,10 @@
               pressureMax: datum.pressureMax,
               distance: datum.distance,
               distanceMax: datum.distanceMax,
-              radiusMin: datum.radiusMin,
-              radiusMax: datum.radiusMax,
+              radiusMajor: radiusMajor,
+              radiusMinor: radiusMinor,
+              radiusMin: radiusMin,
+              radiusMax: radiusMax,
               orientation: datum.orientation,
               tilt: datum.tilt
             );
@@ -325,8 +335,10 @@
               pressureMax: datum.pressureMax,
               distance: datum.distance,
               distanceMax: datum.distanceMax,
-              radiusMin: datum.radiusMin,
-              radiusMax: datum.radiusMax,
+              radiusMajor: radiusMajor,
+              radiusMinor: radiusMinor,
+              radiusMin: radiusMin,
+              radiusMax: radiusMax,
               orientation: datum.orientation,
               tilt: datum.tilt
             );
@@ -340,11 +352,14 @@
             pressureMin: datum.pressureMin,
             pressureMax: datum.pressureMax,
             distanceMax: datum.distanceMax,
-            radiusMin: datum.radiusMin,
-            radiusMax: datum.radiusMax
+            radiusMin: radiusMin,
+            radiusMax: radiusMax
           );
           break;
       }
     }
   }
+
+  static double _toLogicalPixels(double physicalPixels, double devicePixelRatio) =>
+      physicalPixels == null ? null : physicalPixels / devicePixelRatio;
 }
diff --git a/packages/flutter/lib/src/gestures/events.dart b/packages/flutter/lib/src/gestures/events.dart
index 0ff1e30..5d31de7 100644
--- a/packages/flutter/lib/src/gestures/events.dart
+++ b/packages/flutter/lib/src/gestures/events.dart
@@ -519,10 +519,13 @@
     Offset position = Offset.zero,
     int buttons = 0,
     bool obscured = false,
+    double pressure = 1.0,
     double pressureMin = 1.0,
     double pressureMax = 1.0,
     double distance = 0.0,
     double distanceMax = 0.0,
+    double radiusMajor = 0.0,
+    double radiusMinor = 0.0,
     double radiusMin = 0.0,
     double radiusMax = 0.0,
     double orientation = 0.0,
@@ -536,10 +539,13 @@
     buttons: buttons,
     down: false,
     obscured: obscured,
+    pressure: pressure,
     pressureMin: pressureMin,
     pressureMax: pressureMax,
     distance: distance,
     distanceMax: distanceMax,
+    radiusMajor: radiusMajor,
+    radiusMinor: radiusMinor,
     radiusMin: radiusMin,
     radiusMax: radiusMax,
     orientation: orientation,
@@ -564,6 +570,8 @@
     double pressureMax = 1.0,
     double distance = 0.0,
     double distanceMax = 0.0,
+    double radiusMajor = 0.0,
+    double radiusMinor = 0.0,
     double radiusMin = 0.0,
     double radiusMax = 0.0,
     double orientation = 0.0,
@@ -581,6 +589,8 @@
     pressureMax: pressureMax,
     distance: distance,
     distanceMax: distanceMax,
+    radiusMajor: radiusMajor,
+    radiusMinor: radiusMinor,
     radiusMin: radiusMin,
     radiusMax: radiusMax,
     orientation: orientation,