That's an individual choice but the two ways you should decide is with

BMI calculation

Mirror Test

BMI calculation

The BMI stands for Body Mass Index and is a function of your height and weight. Use the calculation to determine if you're normal and use that as a target weight.

The BMI is used to determine if you?re overweight and how much weight loss is needed. To calculate your BMI you take your weight in pounds and divide it by the square of your height in inches. Then multiply the result by 703. If this value is: ? over 40, you are considered morbidly obese ? between 30 ? 40 obese, ? 25 ? 30 overweight, ? 18.5 ? 25 normal weight ? below 18.5 underweight.

I?m 5?9? and weigh 158 pounds. Converting my height to inches 5 * 12 + 9 = 69. So my height squared is 69 * 69 = 4,761. Taking my weight of 158 and dividing by 4,761 = 0.03318631 then multiplying this by 703 = 23.32 which is the normal range. Before I started dieting my BMI was 27.3 which is overweight. Calculate your BMI now to see where you stand.

There are many BMI calculators on the internet. Use your favorite one to find it.

Mirror Test

Look in the mirror. If you like what you see then you're done. If not try to lose five to ten more pounds and then check again.

I feel the BMI test is better because each person might see themself as either overweight or normal and not be there. There are disorders, like Anorexia and Bulimia where you might be way underweight and not realize it.

If you have excess weight in your belly that's not coming off then you have to keep losing until it does and it will.