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Calorie Calculator
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Age:
Years
Gender:
Your Weight:
Height:
Feet
Inches
Activity Level:
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BMI:
Basal Metabolic Rate (BMR):
Calories Burned Per Day:
This is an estimate of the number of calories you burn a day incorporating your activity level. For an estimate of the calories burned during different exercises, see our calories burned calculator.
Food Consumption Per Day:
Alternative Calculation Method The above BMR calorie data is based on the formulas developed by MD Mifflin and ST St Jeor. The Harris-Benedict equation is also commonly used and yields the following: BMR: Adjusted for Activity:
* Always consult your doctor before commencing a weight loss program. This tool is not relevant to children or pregnant women. |
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Weight Loss Calculator Help - Information
The calorie calculator is a useful tool to help determine if you are overweight, how many calories you are burning a day and some suggestions to the amount of calories you should consume. After you input information about yourself such as your age, gender, height, activity level and your current weight you can calculate a number pieces of information that are useful in a weight loss process.
The first output will be your BMI (Body Mass Index). Your BMI is commonly used to determine if you are overweight for your height and this will let you see which weight category you currently fit into. You can then see an estimate of your Basal Metabolic Rate (BMR). Your BMR can be defined as your Calorie expenditure while at rest in a neutrally temperate environment, in the post-absorptive state. There is no need to understand these terms, but rather can be viewed as how many Calories you burn a day with no real activity or digestion occurring.
An estimate of the actual number of calories you burn a day is then computed by adjusting your BMR by a factor related to your general level of activity and exercise. It is here that we see some directly useful information for the weight loss process. Many theories of weight loss are based on the notion of creating calorie deficit into your diet and exercise routine. If you burn the same number of calories as you consume, you can assume your weight will remain relatively constant. In order to lose weight, you should attempt to consume less calories than you burn. It is widely believed that consuming 3500 Calories less than you burn over a period of time will result in approximately 1lb of fat loss. Many sources recommend you should aim for 1lb to 2lbs of fat loss a week for sustainable weight loss. This would imply creating a calorie deficit of 3500 Calories to 7000 Calories a week, or 500 to 1000 Calories a day. The weight loss calculator will then compute your daily Calorie consumption required to achieve approximately 1lb to 2lbs of fat loss a week. Many consider it unhealthy to adopt a calorie consumption of less than 1200 Calories a day and as such, if you can not lose weight at a recommended speed without dropping your calories below this level you may consider increasing your activity as an alternative.
Much of the research for this calorie calculator was based on the resources at Wikipedia on BMI, BMR and the Harris Benedict equation
as well as advice at About.com.
Disclaimer: Please understand that these calculations are based on scientific formulas that generalize between people, and as such may not be relevant in all cases. Additionally, this calorie calculator is not applicable to children or pregnant women. Always consult your doctor before commencing a weight loss program.