diff --git a/src/core/src/descriptor/tensor.cpp b/src/core/src/descriptor/tensor.cpp
index 5a7a4c24a69..ed87ce606bf 100644
--- a/src/core/src/descriptor/tensor.cpp
+++ b/src/core/src/descriptor/tensor.cpp
@@ -100,10 +100,8 @@ const ov::Shape& ov::descriptor::Tensor::get_shape() const {
 
 size_t ov::descriptor::Tensor::size() const {
     const bool bitwidth_less_than_byte = m_element_type.bitwidth() < 8;
-    if (bitwidth_less_than_byte) {
-        return static_cast<size_t>(ceil((1.0 * shape_size(get_shape()) * m_element_type.bitwidth()) / 8));
-    }
-    return shape_size(get_shape()) * m_element_type.size();
+    return bitwidth_less_than_byte ? (shape_size(get_shape()) * m_element_type.bitwidth() + 7) >> 3
+                                   : (shape_size(get_shape()) * m_element_type.size());
 }
 
 const std::unordered_set<std::string>& ov::descriptor::Tensor::get_names() const {