diff --git a/src/auto.rs b/src/auto.rs
index cf11832..ef685e1 100644
--- a/src/auto.rs
+++ b/src/auto.rs
@@ -417,6 +417,14 @@ impl FromIterator<Bit> for BV {
     }
 }
 
+impl Extend<Bit> for BV {
+    fn extend<T: IntoIterator<Item = Bit>>(&mut self, iter: T) {
+        let iter = iter.into_iter();
+        self.reserve(iter.size_hint().0);
+        iter.for_each(|b| self.push(b));
+    }
+}
+
 // ------------------------------------------------------------------------------------------------
 // BV - Formatting traits
 // ------------------------------------------------------------------------------------------------
diff --git a/src/dynamic.rs b/src/dynamic.rs
index 629515f..bfa22dc 100644
--- a/src/dynamic.rs
+++ b/src/dynamic.rs
@@ -584,6 +584,14 @@ impl FromIterator<Bit> for BVD {
     }
 }
 
+impl Extend<Bit> for BVD {
+    fn extend<T: IntoIterator<Item = Bit>>(&mut self, iter: T) {
+        let iter = iter.into_iter();
+        self.reserve(iter.size_hint().0);
+        iter.for_each(|b| self.push(b));
+    }
+}
+
 // ------------------------------------------------------------------------------------------------
 // BVD - Formatting traits
 // ------------------------------------------------------------------------------------------------
diff --git a/src/fixed.rs b/src/fixed.rs
index 784f330..2223963 100644
--- a/src/fixed.rs
+++ b/src/fixed.rs
@@ -577,6 +577,12 @@ where
     }
 }
 
+impl<I: Integer, const N: usize> Extend<Bit> for BVF<I, N> {
+    fn extend<T: IntoIterator<Item = Bit>>(&mut self, iter: T) {
+        iter.into_iter().for_each(|b| self.push(b));
+    }
+}
+
 // ------------------------------------------------------------------------------------------------
 // BVF - Formatting traits
 // ------------------------------------------------------------------------------------------------
diff --git a/src/tests/iter.rs b/src/tests/iter.rs
index b70976f..4fd6972 100644
--- a/src/tests/iter.rs
+++ b/src/tests/iter.rs
@@ -91,3 +91,31 @@ fn from_iter_bv() {
     from_iter_inner::<BV>(64);
     from_iter_inner::<BV>(256);
 }
+
+fn extend_inner<B: BitVector + Extend<Bit>>(capacity: usize) {
+    let mut rng = thread_rng();
+    let bits: Vec<Bit> = (0..capacity)
+        .map(|_| Bit::from(rng.gen::<bool>()))
+        .collect();
+    let mut bv = B::with_capacity(capacity / 2);
+    bv.extend(bits.iter().copied());
+    for (b1, &b2) in bv.iter().zip(bits.iter()) {
+        assert_eq!(b1, b2);
+    }
+}
+
+#[test]
+fn extend_bvf() {
+    bvf_inner_unroll_cap!(extend_inner, {u8, u16, u32, u64, u128}, {1, 2, 3, 4, 5});
+}
+
+#[test]
+fn extend_bvd() {
+    extend_inner::<BVD>(256);
+}
+
+#[test]
+fn extend_bv() {
+    extend_inner::<BV>(64);
+    extend_inner::<BV>(256);
+}