The only way you will know is if you put a potty out for her to use and sit her on it when she takes her diaper off. If she doesn't immediately jump off or fight you she could be ready to start. Then you work with helping her learn to recognize her body's signals, getting there, etc.
If she always jumps up or fights you she just learned a new trick ;) Get out the duct tape, start it at the back of the diaper, wrap around the front, end it in the back. If she still gets it off put her in backwards overalls, with the shoulder straps adjusted snugly, a onesie underneath if she's ultra-determined.
Toddlers CAN learn to potty train this young, my daughter pee trained herself by eighteen months. Typically they exhibit many readiness signs we overlook or ignore, a century ago little ones were trained around a year old, they are capable of learning. Do what feels comfortable, if YOU'RE ready, do it, if you want to wait on her she may not "be ready" until she's well over three. Your attitude about it speaks volumes to her.