diff --git a/fixed_wide_vectors/src/macros/vector.rs b/fixed_wide_vectors/src/macros/vector.rs
index 064ff11..8ba5e62 100644
--- a/fixed_wide_vectors/src/macros/vector.rs
+++ b/fixed_wide_vectors/src/macros/vector.rs
@@ -248,6 +248,22 @@ macro_rules! impl_vector {
 }
 
 
+#[doc(hidden)]
+#[macro_export(local_inner_macros)]
+macro_rules! impl_vector_extend {
+	( ($struct: ident { $($field: ident), + }), ($struct_extended: ident, $field_extended: ident) ) => {
+		impl<T> $struct<T> {
+			#[inline(always)]
+			pub fn extend(self,value:T) -> $struct_extended<T> {
+				$struct_extended {
+					$( $field:self.$field, ) +
+					$field_extended:value
+				}
+			}
+		}
+	};
+}
+
 #[doc(hidden)]
 #[macro_export(local_inner_macros)]
 macro_rules! impl_vector_operator {
diff --git a/fixed_wide_vectors/src/vector.rs b/fixed_wide_vectors/src/vector.rs
index 6d39e49..9f34410 100644
--- a/fixed_wide_vectors/src/vector.rs
+++ b/fixed_wide_vectors/src/vector.rs
@@ -67,6 +67,9 @@ crate::impl_vector!(Vector2 { x, y }, (T, T), 2);
 crate::impl_vector!(Vector3 { x, y, z }, (T, T, T), 3);
 crate::impl_vector!(Vector4 { x, y, z, w }, (T, T, T, T), 4);
 
+crate::impl_vector_extend!((Vector2 { x, y }), (Vector3, z));
+crate::impl_vector_extend!((Vector3 { x, y, z }), (Vector4, w));
+
 crate::impl_matrix!((Vector2 { x, y }, ((T, T), (T, T)), 2), (Vector2, 2), (Vector2 { x, y }) );
 crate::impl_matrix!((Vector2 { x, y }, ((T, T, T), (T, T, T)), 2), (Vector3, 3), (Vector3 { x, y, z }) );
 crate::impl_matrix!((Vector2 { x, y }, ((T, T, T, T), (T, T, T, T)), 2), (Vector4, 4), (Vector4 { x, y, z, w }) );