diff --git a/src/quantity_api/__init__.py b/src/quantity_api/__init__.py
index 9d4b56a..fb782d6 100644
--- a/src/quantity_api/__init__.py
+++ b/src/quantity_api/__init__.py
@@ -17,5 +17,26 @@ def value(self) -> V: ...
     def unit(self) -> U: ...
 
     ### Dunder Methods
-
     def __eq__[B](self, other: Self[op.CanEq[V, B], U], /) -> B: ...
+    def __ne__[B](self, other: Self[op.CanNe[V, B], U], /) -> B: ...
+    def __lt__[B](self, other: Self[op.CanLt[V, B], U], /) -> B: ...
+    def __le__[B](self, other: Self[op.CanLe[V, B], U], /) -> B: ...
+    def __gt__[B](self, other: Self[op.CanGt[V, B], U], /) -> B: ...
+    def __ge__[B](self, other: Self[op.CanGe[V, B], U], /) -> B: ...
+    
+    def __pos__(self) -> Self[op.CanPos[V], U]: ...
+    def __neg__(self) -> Self[op.CanNeg[V], U]: ...
+    def __abs__(self) -> Self[op.CanAbs[V], U]: ...
+
+    def __add__[B](self, other: Self[op.CanAdd[V, B], U], /) -> Self[op.CanAdd[V, B], U]: ...
+    def __radd__[B](self, other: Self[op.CanAdd[V, B], U], /) -> Self[op.CanAdd[V, B], U]: ...
+    def __sub__[B](self, other: Self[op.CanSub[V, B], U], /) -> Self[op.CanSub[V, B], U]: ...
+    def __rsub__[B](self, other: Self[op.CanSub[V, B], U], /) -> Self[op.CanSub[V, B], U]: ...
+
+    def __mul__[B](self, other: Self[op.CanMul[V, B], U], /) -> Self[op.CanMul[V, B], U]: ...
+    def __rmul__[B](self, other: Self[op.CanMul[V, B], U], /) -> Self[op.CanMul[V, B], U]: ...
+    def __truediv__[B](self, other: Self[op.CanDiv[V, B], U], /) -> Self[op.CanDiv[V, B], U]: ...
+    def __rtruediv__[B](self, other: Self[op.CanDiv[V, B], U], /) -> Self[op.CanDiv[V, B], U]: ...
+
+    def __pow__(self, other: int | Self[op.CanPow[V], U], /) -> Self[op.CanPow[V], U]: ...
+    def __rpow__(self, other: int | Self[op.CanPow[V], U], /) -> Self[op.CanPow[V], U]: ...