You might be feeling like loosing weight but the scale stays the same. If you are on a diet and have been working a lot lately and counting everything perfect still when you step on the scale it does not move or maybe it has gone higher than it was before the reason for this is mainly simple, 

 Reason 1
You are loosing weight but gaining muscle.

 This happens to many people (including me) and then you get upset, well there is no need to be upset, muscle ways far more than your body fats

 if you look it in a way you are looking for fat loss but not weight loss

 Then the Question is how can you calculate your fat loss

 and the answer to that is also fairly simple, take measurements of your body, and measure yourself after every 2 weeks or maybe after a month you will actually notice the different but scale might stays the same because your muscle has weight too when you are exercising your body makes muscle which tends to have more weight than your fats.

 Reason 2
The time at which you measure yourself.

 This is the common mistake which most of us make you should measure yourself at the same time, if  you check your weight in the morning it will be actually different than the weight you will have in the evening

 and there are many reasons for this, you could be dehydrated or you might have eaten something which is not properly digested
Or you might be wearing something heavier than the time you have weigh yourself before

 Tips
1.Weigh yourself Naked (If Possible) then you will know exactly what your weight is instead of the weight of your clothes

 2. Like i said before weigh yourself at the same time after every 3 days or maybe after a week

 3. If possible measure yourself after a week or maybe a month after you will know actually what your measurements are because you are focusing on your fats not your weight.