While most people worry about fat around their thighs or abs, some are dead set on toning their knees. If you feel that you have excess fat around your knees, don't feel embarrassed or weird about it. You're not alone and there's nothing strange about having fat knees. A lot of people do.
If you're wondering how to lose knee fat you need to first learn the facts about fat loss in general. This will help steer you in the right direction and achieve your goals.
The first thing you need to realize is that there isn't any specific exercise or workout that can help you get rid of knee fat. You can't force your body to burn fat from your knees or from any other body part for that matter. Your body simply doesn't take instructions in that regard and burns fat from wherever it wants. The only way to get rid of knee fat specifically is to do it surgically, something I don't recommend as it is a bit drastic, not to mention expensive.
The way to lose fat around the knees is to lose fat in general. As your body melts away fat, from all over, you will find that the fat around your knees diminishes as well. It may take some time and it may not be as fast as you want it to be, but this is how you achieve your goals. This is the reality.
To burn more fat with your workouts, focus on full body strength training workouts and intensive cardio exercises. You also need to follow a good diet plan that's focused on fat loss. A good workout routine and diet plan are what you need to lose fat from all over your body and your knees included.
A note about leg exercises: while no leg exercises will help you lose knee fat specifically, you can tone the thigh and these exercise and they may make the area surrounding your knees tighter as well. Try it and you'll see.