diff --git a/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp b/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp
index bb6bb9050f..bafeef361e 100644
--- a/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp
+++ b/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp
@@ -279,6 +279,21 @@ bool run(const ck_tile::ArgParser& arg_parser)
         };
     };
 
+    long total_flops = 0;
+
+    // estimate the total flops occurred, ignoring the scaling and SILu
+    if(is_jagged)
+    {
+        for(auto len : seq_lengths)
+            total_flops += 2 * (len * len * hdim_qk + len * hdim_v * len);
+
+        total_flops *= num_head;
+    }
+    else
+    {
+        total_flops = num_batch * num_head * (seqlen * seqlen * hdim_qk + seqlen * hdim_v * seqlen);
+    };
+
     int batches_for_alloc = is_jagged ? 1 : num_batch;
 
     ck_tile::HostTensor<InOutDataType> q_host(
@@ -476,7 +491,8 @@ bool run(const ck_tile::ArgParser& arg_parser)
         auto ms = timer.duration() / 10.f;
 
         std::cout << "Average execution time of the hstu_attention operation is " << ms
-                  << " milli-seconds" << std::endl;
+                  << " milli-seconds, estimated TFLOPS is "
+                  << (static_cast<float>(total_flops) / ms) / 1.0e9 << std::endl;
     }
 
     return res;