Am i fat??

Im 15 years old 5'1 and 120 pounds?

That it what a 14 year old should weigh...{I think} but You're defintely not fat. You're height goes good with your weight so you're normal sized.

 
You should weigh 95 to 115 pounds, so you might be a very little bit overweight.

How to LOSE weight?

First, determine from the information below, what your weight should be. Then set yourself goals of a week, 2 weeks, a month, 3 months, 6 months and a year. As you see yourself meeting your goals it becomes easier. Remember, you didn't gain your weight overnight so don't expect to lose if overnight. Plus, weight lost slowly is more likely to stay off than weight lost in a hurry.

BMI (Body Mass Index) is a measurement of body fat based on height and weight that applies to both men and women between the ages of 18 and 65 years.

BMI Classification

18.5 or less Underweight
18.5 to 24.99 Normal Weight
25 to 29.99 Overweight
30 to 34.99 Obesity (Class 1)
35 to 39.99 Obesity (Class 2)
40 or greater Morbid Obesity

Check out your BMI at the bmi calculator site below to see where you stand.

bmi calculator:

http://www.bmi-calculator.net/

If you need conversion info, 1 kg = 2.2 pounds and 2.54 cm = 1 inch (12 inches = 1 foot) (1 stone = 14 pounds)

Info if you are trying to LOSE weight:

http://www.bmi-calculator.net/treatment/overweight-treatment.php

How can I Lose 1 pound of body weight per week?

One pound of body fat is equal to about 3500 calories. So to lose 1 pound of weight per week, you need to eat 500 calories/day LESS than you burn.

But it's not a good idea to lose weight simply by cutting calories. As well as decreasing calories you should increase your daily physical exercise. This helps to burn calories and build more lean tissue which in turn burns more calories.

What should a minimum calorie intake be?

As a guide to minimum calorie intake, the American College of Sports Medicine (ACSM) recommends that calorie levels never drop below 1200 calories per day for women or 1800 calories per day for men. Even these calorie levels are quite low.

http://www.bmi-calculator.net/bmr-calculator/harris-benedict-equation/calorie-intake-to-lose-weight.php

Normal Adult Height-Weight Range Table

http://www.recipehound.com/weight.html

Average Teenager Weight

http://lifestyle.iloveindia.com/lounge/average-teenager-weight-236.html

Check out this link for exercise information:

http://www.fitstep.com/Library/Exercises/Exercises.htm

Another thing that helps to lose weight is to always eat a good breakfast. That helps to jump start your metabolism which helps start burning calories. Also, try to drink 8 eight ounce glasses of water every day. One before every meal (except breakfast) and before all snacks. That helps curb your appetite which helps reduce caloric intake.

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technically you are fat..but america wants everyone to be skinny and look like they are starving..your weight doesnt demand you to lose weight because you dont have to much weight

You are fine however you are. You are not fat, and you are still growing. You will have a few more growth spurts and then loose weight that way. If you are really concerned(which you have no need!) then drink a glass of cold water with lemon to boost your metabolism. (Glitteranddisaster told me that.) For cravings, chew sugarfree gum. Try to only intake 40-60grams of sugar a day(since that is the advised amount.)
BUT, you have NO need to worry about your weight!