diff --git a/plonky2/Cargo.toml b/plonky2/Cargo.toml
index 466d3df6..28d5b210 100644
--- a/plonky2/Cargo.toml
+++ b/plonky2/Cargo.toml
@@ -55,3 +55,7 @@ harness = false
 [[bench]]
 name = "transpose"
 harness = false
+
+[[bench]]
+name = "reverse_index_bits"
+harness = false
diff --git a/plonky2/benches/reverse_index_bits.rs b/plonky2/benches/reverse_index_bits.rs
new file mode 100644
index 00000000..90f1e285
--- /dev/null
+++ b/plonky2/benches/reverse_index_bits.rs
@@ -0,0 +1,30 @@
+use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
+use plonky2::field::field_types::Field;
+use plonky2::field::goldilocks_field::GoldilocksField;
+use plonky2_util::{reverse_index_bits, reverse_index_bits_in_place};
+
+type F = GoldilocksField;
+
+fn benchmark_in_place(c: &mut Criterion) {
+    let mut group = c.benchmark_group("reverse-index-bits-in-place");
+    for width in [1 << 8, 1 << 16, 1 << 24] {
+        group.bench_with_input(BenchmarkId::from_parameter(width), &width, |b, _| {
+            let mut values = F::rand_vec(width);
+            b.iter(|| reverse_index_bits_in_place(&mut values));
+        });
+    }
+}
+
+fn benchmark_out_of_place(c: &mut Criterion) {
+    let mut group = c.benchmark_group("reverse-index-bits");
+    for width in [1 << 8, 1 << 16, 1 << 24] {
+        group.bench_with_input(BenchmarkId::from_parameter(width), &width, |b, _| {
+            let values = F::rand_vec(width);
+            b.iter(|| reverse_index_bits(&values));
+        });
+    }
+}
+
+criterion_group!(benches_in_place, benchmark_in_place);
+criterion_group!(benches_out_of_place, benchmark_out_of_place);
+criterion_main!(benches_in_place, benches_out_of_place);