This App is the calculator which can convert easily dog’s age into human years. For the calculation, we have adopted the new formula promptly which was developed by the newest research of Tina Wang and Trey Ideker of the University of California, San Diego. According the research, the new formula is based on the data of Labrador retriever, therefore the rate of aging is different in the case of other dog breed. Also, it can even convert by the conventional generally formula.