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Calories per Day Calculator

How many calories should I eat each day to maintain my weight?

Use your Resting Metabolism (RMR) (also known as Basal Metabolism or BMR) then factor in your activity level to get about how many calories you burn in an average day. You can eat about this many calories per day to maintain your current weight. This calculator uses gender, height, weight, and age to determine your RMR, then makes adjustments depending on the activity level you choose.


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Ernesto arangoa   How many calories should I be feeding my system to weigh 154 I currently weigh 135 /: and I'm 22 and im 5'9 is it because of marihuana ? I have currently working on stopping .. Let me know what you guys think thnk u - 3/4/2015 1:50:56 PM

Martha   How many calories a day do I need to eat I weigh 250 pounds - 6/5/2014 12:23:09 PM

Minerva isaac   I am 250 lb and i am 26 yrs old my hight is 5.1 feet How many calories i should eat per day and how many i should burn per day - 3/18/2014 11:48:48 AM

CHANTAL   please assist with the amount of calories i need to consume - 3/11/2014 6:55:05 AM

krinermom6   I found this a great starting point. I agree with Girl, but there isn't a system out there that takes all of that into account yet. Maybe another question could take into account our fat percentage. Anyone who is into fitness can get that measured, and any YMCA will do it for anyone! That would help. Scientists... get on it! LOL Very helpful to start out. - 1/10/2010 7:37:22 PM

Girl   Dude they don't take into consideration muscle weight vs. fat weight. my body weight seems like alot, but i'm not fat. i'm very active, and just have alot of muscle. i feel like they need to ask more questions to find an accurate calorie counter. - 10/25/2008 9:14:05 AM

zodiaclove   hola I can not agree with what you said really.... please explain further a bit more for me :D thank you - 10/11/2008 7:56:22 AM

Russ   The calories in this calculator are the same calories normally associated with eating food and exercising. When you are talking scientific measurements, then you are referring to 1000 calories (1 kcal) = 1 Calorie. - 10/7/2008 6:04:13 AM

Zamri   In the above calculator, does 1000 calories = 1 kcal? - 10/6/2008 12:32:39 AM

bizitch on a stizick, aka the bomb dot com   I told it I was 89, I weighed 250 lbs, and I was 5 foot, and sedentary, and it saide I take in 244 calories a day. How can I burn that much and still be a fat ass?????? - 3/10/2008 3:11:51 PM

jena   :):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):)I love, love, love, love, love, love, love, love, LOVE this calculator - 3/10/2008 3:05:19 PM

Field Help

Input Fields


US/MetricChoose US or Metric units.

GenderSelect your gender.

WeightYour current scale weight.


AgeYour current age.

Activity LevelChoose the level that best describes how active you are throughout an average day.

Output Fields

Average Actual MetabolismThe average number of calories you burn per day and per hour.


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