diff --git a/benchmarks/operator_benchmark/pt/qobserver_test.py b/benchmarks/operator_benchmark/pt/qobserver_test.py
index 74c982136b4560..fb528eac4ca5bd 100644
--- a/benchmarks/operator_benchmark/pt/qobserver_test.py
+++ b/benchmarks/operator_benchmark/pt/qobserver_test.py
@@ -70,6 +70,13 @@
     ]
 )
 
+qobserver_calculate_qparams_list = op_bench.op_list(
+    attr_names=['op_name', 'op_func'],
+    attrs=[
+        ['HistogramObserverCalculateQparams', obs.HistogramObserver],
+    ]
+)
+
 
 class QObserverBenchmark(op_bench.TorchBenchmarkBase):
     def init(self, C, M, N, dtype, qscheme, op_func, device):
@@ -79,6 +86,15 @@ def init(self, C, M, N, dtype, qscheme, op_func, device):
     def forward(self):
         return self.op_func(self.f_input)
 
+class QObserverBenchmarkCalculateQparams(op_bench.TorchBenchmarkBase):
+    def init(self, C, M, N, dtype, qscheme, op_func, device):
+        self.f_input = torch.rand(C, M, N, device=device)
+        self.q_observer = op_func(dtype=dtype, qscheme=qscheme).to(device)
+        self.q_observer(self.f_input)
+
+    def forward(self):
+        return self.q_observer.calculate_qparams()
+
 
 op_bench.generate_pt_tests_from_op_list(
     qobserver_per_tensor_list,
@@ -90,6 +106,11 @@ def forward(self):
     qobserver_per_channel_configs_short + qobserver_per_channel_configs_long,
     QObserverBenchmark)
 
+op_bench.generate_pt_tests_from_op_list(
+    qobserver_calculate_qparams_list,
+    qobserver_per_tensor_configs_short + qobserver_per_tensor_configs_long,
+    QObserverBenchmarkCalculateQparams)
+
 
 if __name__ == "__main__":
     op_bench.benchmark_runner.main()