How Many Calories Should I Eat to Lose 2 Pounds Per Week?

There is no single daily calorie intake that guarantees a loss of 2 pounds per week. The often-quoted 1,000-calorie daily deficit comes from a rough rule, not a prediction of how your body will respond. Your maintenance needs and whether weight loss is appropriate for you come first.

Where the 1,000-calorie figure comes from

The traditional estimate assigns 3,500 calories to one pound of weight loss. For two pounds, the arithmetic is 2 × 3,500 ÷ 7 = 1,000 calories per day. That describes the rule; it does not establish a suitable eating target.

A constant calorie reduction does not produce the same weight change indefinitely. Energy needs change as body weight changes. Research behind the NIDDK Body Weight Planner uses a model that accounts for changes over time instead of treating weight loss as a straight line.

Start with estimated maintenance calories

Maintenance calories, also called total daily energy expenditure or TDEE, are an estimate of the energy you use in a day. Resting energy and your activity level both contribute. A calculator estimates these needs; it does not measure your metabolism.

Use the calorie calculator to explore your estimated maintenance needs.

Enter your age, sex, weight, height and activity level. WiseCalcs uses the Mifflin–St Jeor equation for resting energy, then applies an activity factor. The weight-loss option subtracts a fixed 500 calories from estimated maintenance. It does not calculate a personalised deficit for losing 2 pounds per week or predict a date when you will reach a goal weight.

A worked calculator example

For a 30-year-old man weighing 80 kg and measuring 180 cm, the calculator estimates resting energy at 1,780 kcal per day. Selecting moderate activity applies a factor of 1.55: 1,780 × 1.55 = 2,759 kcal for estimated maintenance. The weight-loss preset shows 2,759 − 500 = 2,259 kcal.

Subtracting 1,000 instead would give 1,759 kcal in this example. That is arithmetic for comparison, not a recommendation. Neither number proves that this person will lose a particular amount each week or that the intake meets their nutritional needs.

Is two pounds per week an appropriate goal?

CDC describes gradual weight loss of about 1 to 2 pounds a week as more likely to be maintained than faster weight loss. Two pounds is the upper end of that general range, not a target everyone needs to meet. Medicines, medical conditions and individual circumstances affect weight management.

A result above 1,200 or 1,500 calories is not a safety certificate. Those commonly quoted numbers cannot assess your nutritional needs, medical history or whether you should be losing weight. Do not keep reducing food simply to force the scale to match a weekly target.

This article explains estimates for adults. Children and teenagers, people who are pregnant or breastfeeding, and people with an eating disorder or a history of one need appropriate professional guidance rather than a general weight-loss calculation. Discuss significant dietary changes with your healthcare professional if you have a medical condition or take medicines that may be affected.

Avoid counting activity twice

The activity factor already adds an allowance for activity to resting energy. Adding all your workout calories again can overstate your maintenance estimate. Choosing a higher activity category and separately counting the same workouts is not two independent sources of energy use.

Explore how activity changes the estimate in the TDEE calculator.

See the BMR calculator for an explanation of resting energy.

What to do with the estimate

Use the result to understand the assumptions and to discuss a realistic plan, rather than as an instruction to eat an exact number. Review changes over time alongside how you feel, your eating pattern and your activity. A single weigh-in cannot establish whether the calorie estimate is accurate. If progress differs from the estimate, do not assume a larger deficit is automatically the answer.

Common questions

Does a 1,000-calorie deficit guarantee two pounds a week?

No. It is the result of the traditional 3,500-calorie rule. The rule does not account for changing energy needs over time and cannot guarantee an individual weekly outcome.

Why does the WiseCalcs weight-loss setting subtract 500?

That is the fixed adjustment implemented in the calculator. It is an illustrative scenario, not a prediction of one pound lost per week or a personal prescription.

Can I use the NIDDK planner instead?

The NIDDK Body Weight Planner models calorie and activity changes toward a goal over time. It is a separate tool and is not the model implemented by WiseCalcs. NIDDK limits its planner to adults and excludes pregnancy and breastfeeding.

• Steps for Losing Weight — CDC
• About the Body Weight Planner — NIDDK
• Research Behind the Body Weight Planner — NIDDK