diff --git a/src/corelib/global/qnumeric.h b/src/corelib/global/qnumeric.h
index 2238c13da09..521cf98b09d 100644
--- a/src/corelib/global/qnumeric.h
+++ b/src/corelib/global/qnumeric.h
@@ -366,22 +366,22 @@ template <typename T>
 constexpr inline const T &min(const T &a, const T &b) { return (a < b) ? a : b; }
 }
 
-[[nodiscard]] constexpr bool qFuzzyCompare(double p1, double p2)
+[[nodiscard]] constexpr bool qFuzzyCompare(double p1, double p2) noexcept
 {
     return (qAbs(p1 - p2) * 1000000000000. <= QtPrivate::min(qAbs(p1), qAbs(p2)));
 }
 
-[[nodiscard]] constexpr bool qFuzzyCompare(float p1, float p2)
+[[nodiscard]] constexpr bool qFuzzyCompare(float p1, float p2) noexcept
 {
     return (qAbs(p1 - p2) * 100000.f <= QtPrivate::min(qAbs(p1), qAbs(p2)));
 }
 
-[[nodiscard]] constexpr bool qFuzzyIsNull(double d)
+[[nodiscard]] constexpr bool qFuzzyIsNull(double d) noexcept
 {
     return qAbs(d) <= 0.000000000001;
 }
 
-[[nodiscard]] constexpr bool qFuzzyIsNull(float f)
+[[nodiscard]] constexpr bool qFuzzyIsNull(float f) noexcept
 {
     return qAbs(f) <= 0.00001f;
 }
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp
index d04a5025195..013908a714f 100644
--- a/src/gui/math3d/qmatrix4x4.cpp
+++ b/src/gui/math3d/qmatrix4x4.cpp
@@ -735,7 +735,7 @@ QMatrix4x4 operator/(const QMatrix4x4& matrix, float divisor)
     Returns \c true if \a m1 and \a m2 are equal, allowing for a small
     fuzziness factor for floating-point comparisons; false otherwise.
 */
-bool qFuzzyCompare(const QMatrix4x4& m1, const QMatrix4x4& m2)
+bool qFuzzyCompare(const QMatrix4x4& m1, const QMatrix4x4& m2) noexcept
 {
     return qFuzzyCompare(m1.m[0][0], m2.m[0][0]) &&
             qFuzzyCompare(m1.m[0][1], m2.m[0][1]) &&
diff --git a/src/gui/math3d/qmatrix4x4.h b/src/gui/math3d/qmatrix4x4.h
index f8e5bc43147..80ba62ca36f 100644
--- a/src/gui/math3d/qmatrix4x4.h
+++ b/src/gui/math3d/qmatrix4x4.h
@@ -93,7 +93,7 @@ public:
     friend QMatrix4x4 operator*(const QMatrix4x4& matrix, float factor);
     friend Q_GUI_EXPORT QMatrix4x4 operator/(const QMatrix4x4& matrix, float divisor);
 
-    friend Q_GUI_EXPORT bool qFuzzyCompare(const QMatrix4x4& m1, const QMatrix4x4& m2);
+    friend Q_GUI_EXPORT bool qFuzzyCompare(const QMatrix4x4& m1, const QMatrix4x4& m2) noexcept;
 
 #ifndef QT_NO_VECTOR3D
     void scale(const QVector3D& vector);
diff --git a/src/gui/painting/qtransform.h b/src/gui/painting/qtransform.h
index 3a858383373..50f065957ee 100644
--- a/src/gui/painting/qtransform.h
+++ b/src/gui/painting/qtransform.h
@@ -304,7 +304,7 @@ inline QTransform &QTransform::operator-=(qreal num)
 
 QT_WARNING_POP
 
-inline bool qFuzzyCompare(const QTransform& t1, const QTransform& t2)
+inline bool qFuzzyCompare(const QTransform& t1, const QTransform& t2) noexcept
 {
     return qFuzzyCompare(t1.m11(), t2.m11())
         && qFuzzyCompare(t1.m12(), t2.m12())