diff --git a/apps/sequence/graph/curve_view_range.cpp b/apps/sequence/graph/curve_view_range.cpp
index e9609669a..08aeed280 100644
--- a/apps/sequence/graph/curve_view_range.cpp
+++ b/apps/sequence/graph/curve_view_range.cpp
@@ -39,20 +39,20 @@ void CurveViewRange::normalize() {
   float xMax = m_xMax;
   float yMin = m_yMin;
   float yMax = m_yMax;
-  float newXMin = clipped((xMin+xMax)/2 - 5.3f, false);
-  float newXMax = clipped((xMin+xMax)/2 + 5.3f, true);
+  float newXMin = clipped((xMin+xMax)/2 - NormalizedXHalfRange(), false);
+  float newXMax = clipped((xMin+xMax)/2 + NormalizedXHalfRange(), true);
   if (!std::isnan(newXMin) && !std::isnan(newXMax)) {
     m_xMin = newXMin;
     m_xMax = newXMax;
     m_xGridUnit = computeGridUnit(Axis::X, m_xMin, m_xMax);
   }
   if (m_xMin < 0.0f) {
-    m_xMin = -k_displayLeftMarginRatio*2.0f*5.3f;
-    m_xMax = m_xMin + 2.0f*5.3f;
+    m_xMin = -k_displayLeftMarginRatio*2.0f*NormalizedXHalfRange();
+    m_xMax = m_xMin + 2.0f*NormalizedXHalfRange();
   }
   m_yAuto = false;
-  float newYMin = clipped((yMin+yMax)/2 - 3.1f, false);
-  float newYMax = clipped((yMin+yMax)/2 + 3.1f, true);
+  float newYMin = clipped((yMin+yMax)/2 - NormalizedYHalfRange(), false);
+  float newYMax = clipped((yMin+yMax)/2 + NormalizedYHalfRange(), true);
   if (!std::isnan(newYMin) && !std::isnan(newYMax)) {
     m_yMin = newYMin;
     m_yMax = newYMax;
diff --git a/apps/shared/interactive_curve_view_range.cpp b/apps/shared/interactive_curve_view_range.cpp
index 9c916fc44..82e1642f5 100644
--- a/apps/shared/interactive_curve_view_range.cpp
+++ b/apps/shared/interactive_curve_view_range.cpp
@@ -115,23 +115,23 @@ void InteractiveCurveViewRange::roundAbscissa() {
 }
 
 void InteractiveCurveViewRange::normalize() {
+  /* We center the ranges on the current range center, and put each axis so that
+   * 1cm = 2 units. */
   float xMin = m_xMin;
   float xMax = m_xMax;
   float yMin = m_yMin;
   float yMax = m_yMax;
   // Set x range
-  float xMargin = 5.3f;
-  float newXMin = clipped((xMin+xMax)/2 - xMargin, false);
-  float newXMax = clipped((xMin+xMax)/2 + xMargin, true);
+  float newXMin = clipped((xMin+xMax)/2 - NormalizedXHalfRange(), false);
+  float newXMax = clipped((xMin+xMax)/2 + NormalizedXHalfRange(), true);
   if (!std::isnan(newXMin) && !std::isnan(newXMax)) {
     m_xMax = newXMax;
     MemoizedCurveViewRange::setXMin(newXMin);
   }
   // Set y range
   setYAuto(false);
-  float yMargin = 3.1f;
-  float newYMin = clipped((yMin+yMax)/2 - yMargin, false);
-  float newYMax = clipped((yMin+yMax)/2 + yMargin, true);
+  float newYMin = clipped((yMin+yMax)/2 - NormalizedYHalfRange(), false);
+  float newYMax = clipped((yMin+yMax)/2 + NormalizedYHalfRange(), true);
   if (!std::isnan(newYMin) && !std::isnan(newYMax)) {
     m_yMax = newYMax;
     MemoizedCurveViewRange::setYMin(newYMin);
diff --git a/apps/shared/interactive_curve_view_range.h b/apps/shared/interactive_curve_view_range.h
index 053b7c2b5..9d6e3abb4 100644
--- a/apps/shared/interactive_curve_view_range.h
+++ b/apps/shared/interactive_curve_view_range.h
@@ -5,6 +5,7 @@
 #include "memoized_curve_view_range.h"
 #include "curve_view_cursor.h"
 #include "interactive_curve_view_range_delegate.h"
+#include <ion/display.h>
 
 namespace Shared {
 
@@ -42,6 +43,18 @@ public:
   bool isCursorVisible(float topMarginRatio, float rightMarginRatio, float bottomMarginRation, float leftMarginRation);
 protected:
   bool m_yAuto;
+  /* In normalized settings, we put each axis so that 1cm = 2 units. For now,
+   * the screen has size 43.2mm * 57.6mm.
+   * We want:
+   *   2*NormalizedXHalfRange -> 57.6mm
+   *   2*1 -> 10.0mm
+   * So NormalizedXHalfRange = 5.76
+   * We want:
+   *   2*NormalizedYHalfRange -> 43.2mm * 170/240
+   *   2*1 -> 10.0mm
+   * So NormalizedYHalfRange = 3.06 */
+  constexpr static float NormalizedXHalfRange() { return 5.76f; }
+  constexpr static float NormalizedYHalfRange() { return 3.06f; }
   static float clipped(float f, bool isMax);
   InteractiveCurveViewRangeDelegate * m_delegate;
 private:
@@ -53,6 +66,9 @@ private:
   CurveViewCursor * m_cursor;
 };
 
+static_assert(Ion::Display::WidthInTenthOfMillimeter == 576, "Use the new screen width to compute Shared::InteractiveCurveViewRange::NormalizedXHalfRange");
+static_assert(Ion::Display::HeightInTenthOfMillimeter == 432, "Use the new screen height to compute Shared::InteractiveCurveViewRange::NormalizedYHalfRange");
+
 typedef void (InteractiveCurveViewRange::*ParameterSetterPointer)(float);
 typedef float (InteractiveCurveViewRange::*ParameterGetterPointer)();
 typedef void (InteractiveCurveViewRange::*RangeMethodPointer)();
diff --git a/ion/include/ion/display.h b/ion/include/ion/display.h
index 4db471ba7..a43c830cc 100644
--- a/ion/include/ion/display.h
+++ b/ion/include/ion/display.h
@@ -25,6 +25,8 @@ void waitForVBlank();
 
 constexpr int Width = 320;
 constexpr int Height = 240;
+constexpr int WidthInTenthOfMillimeter = 576;
+constexpr int HeightInTenthOfMillimeter = 432;
 
 }
 }