Hilary Duff is focused on shedding that baby weight with regular trips to the gym!

The former Disney darling, wearing black stretch workout pants, a grey tank and a camel-colored scarf, fed the meter while holding on to her essentials ... her Starbucks drink and iPhone 5.

When asked about her weight earlier this year, Duff told Us:

    "Obviously, I'm not where I want to be eventually, but I'm working hard and I'm doing everything I can to lose the weight the right way. The second I start to get down like "What happened to my body?" I look at my beautiful baby and I've never been more appreciative for this body that I have."

Duff, who gave birth to son Luca in March, has been hitting the gym hard, and it shows!