@mnd0 I'm 4'9".
I learned to hem my own pants as a teenager. I recommend you learn to hem your pants. It's really the best answer to this question for ladies under 5'.
@bea1271 That's not going to work for a much smaller person though. I know wrist hr monitors aren't great but mine says I burn about 80 calories a mile and that jives with my calculations based on my size.