How old?

Having lost weight over the past few years, a lady was discarding things from her wardrobe that no longer fit.
Her seven-year-old niece was watching as she held up a huge pair of slacks.
“Wow,” the lady said, “I must have worn these when I was 183.”
Her niece looked puzzled, then asked, “How old are you now?”

What?!?

Keep your ears from popping..