counter 歳 (years of age)

You're turning 17 next month?

She's thirty-five and in the prime of her womanhood.

How old will you be next year?

I'll be seventeen next year.

She's three years older than me.

She celebrated her 15th birthday yesterday.

She'll turn 17 this coming February.

She's pushing thirty-five.

She's six years older than I am.

She's five years younger than me.

She's two years older than me.

She is five years old.