Cat Age to Human Years Calculator

The 15/9/4 Cat Age Formula Explained

Unlike the simple myth that 1 cat year equals 7 human years, a cat's aging process is much faster in its early life. We use the scientifically supported **15/9/4 formula**:

• **First year:** A cat reaches maturity equivalent to **15 human years**.
• **Second year:** The cat ages another **9 human years** (Total: 24).
• **Subsequent years:** After age two, each additional year of a cat's life adds approximately **4 human years**.

This method provides a more accurate reflection of your cat's life stage, aiding in discussions with your veterinarian about nutritional needs and preventative care.