For at least a decade, we’ve heard about the one-in-eight chance that a woman will get breast cancer. Scary. But it sounds worse than it is.

“Some people might think the one-in-eight chance reflects the likelihood of their getting cancer in the next few years,” says Ted Gansler, M.D. “But what it actually means is that your lifetime risk, from birth to the average life expectancy of 80, is one in eight.”

Another way of looking at it is that out of all women born today, 12.7 percent (about one in eight) will be diagnosed with breast cancer at some point in their lives. The older you are, the higher your chances are of developing breast cancer over the next few years. The average age at detection is 61.

Here’s a breakdown from the National Cancer Institute of what the numbers are for your actual risk.

From age 30 through 39, you have a 0.43 percent (1 in 233) chance.

From age 40 through 49, you have a 1.44 percent (1 in 69) chance.

From age 50 through 59, you have a 2.63 percent (1 in 38) chance.

From age 60 through 69, you have a 3.65 percent (1 in 27) chance.