Instead, the average lifespan for a chocolate lab can be expressed as a range in human years rather than a specific conversion. On average, chocolate Labradors have an expected lifespan of 10 to 13 years. However, these are not fixed numbers and some dogs may live longer, while others may live shorter lives due to various factors that can affect their health and longevity. Regular veterinary care, proper nutrition, and a healthy lifestyle can contribute to a longer and more fulfilling life for a chocolate lab.