You may be getting more exercise than you think on those short walks with your baby. When your days are booked solid with feeding, diaper changes, and naptimes (the baby’s and yours), finding time and childcare to go to the gym seems like a pipe dream. How are you supposed to lose the baby weight when you can barely even find time to take a shower? It can be so exhausting and time consuming taking care of baby and just thinking about exercise might seem like another chore.

Well, here’s the good news: You’re probably getting a lot of exercise already and don’t even know it. To prove it, strap the Strollometer onto your stroller and go. Invented by New York-based mama Adi Weber, who wanted a way to quantify the exercise she was getting behind her stroller, this handy strap-on pedometer will wirelessly calculates your speed, distance, and time. It’s weatherproof, so you don’t have to worry about it if you get caught in the rain, tells you the time and temperature, and fits onto any stroller — jogging or your plain old umbrella stroller.

The Strollometer is a great device for anyone who likes to calculate numbers for exercise, uses numbers to help challenge themselves or set goals or simply needs something to spur them on in their workouts. Since it works with any stroller, it’s a blessing for any new moms who needs to know something about her workout.