There is no easy answer when it comes to whether or not a 2032 battery can replace a 2016 battery. The size, voltage and capacity of the two batteries are different, so it really depends on what device you're trying to use them in. If the 2032 battery has the same voltage and capacity as the 2016 battery, then it's possible that it could be used as a replacement. However, if the 2032 battery doesn't have the same voltage and capacity, then it probably won't work as a replacement. Ultimately, it's best to consult your device's owner manual or manufacturer to see what kind of batteries they recommend.