the current estimated age of the universe is approximately 13.8 billion years. This value is based on observations and measurements from various cosmological studies, including the study of the cosmic microwave background radiation, the rate of expansion of the universe, and the ages of the oldest known celestial objects.
It's important to note that scientific understanding and measurements related to the age of the universe are continually refined and updated as new data becomes available. Therefore, it's always a good idea to consult the latest scientific research and sources for the most up-to-date information on this topic.