The most important thing to remember is, to burn leg fat you will have to lose weight all over. Spot reduction is almost impossible, but with the right diet and some exercises you can target them and get rid of those thick legs.

Ok, so you have to take a double approach:

1. A healthy balanced diet

2. Exercises

Yes, sorry, but there is no way you can lose weigh anywhere on your body without a good diet. Sure, exercises help, but exercises alone cannot get rid of a serious problem. The opposite is of course true also, you cannot burn leg fat without any exercises, that is the only way you can target a specific area.

1. What is a good diet?

It is important that you do not even consider one of the many fad diets doing the rounds. You have to choose a diet that provides you with enough calories to allow you to exercise without any problem. This is very important. If you eat too little you cannot exercise safely.

So, keep it in mind, you have to follow a good diet. The diet does not have to say exercise is compulsory, it must just not forbid it. Many diets will make you lose weight without any exercises, but exercises help you to target specific areas in your body.

Just a warning, if you eat too few calories a day, your metabolism will slow down and you will find it more and more difficult to burn leg fat.

Another problem is, if you eat too little you will lose muscle as your body burns muscle to provide for essential body functions. Now this is bad news, you want those muscles because lean muscles burn more calories than fat.

A good diet is a diet that allows you to eat a variety of food. Your diet has to supply all the nutrition your body needs. If you are eating mainly one kind of food, that is not going to be the case. Do not follow a diet where you only eat soup or one kind of fruit all day.

2. Now for the exercises:

You have to do normal cardio exercises, but many of them can be adjusted to target your legs and that way you can get a double benefit from them.

If you are going to walk, walk uphill and walk fast. This way you combine cardio exercises with leg exercises. I have tried it myself and walking uphill at a fast pace really work those leg muscles. The same goes for running

If you are going to do cycling, try and do it standing as that way you also target the leg muscles more.

Rollerblading is another cardio exercise that really works the legs if you can find a suitable place to do it.

If you do everything mentioned here you should not have any problems to burn leg fat.