There are a few factors to consider when determining how many calories you should eat to gain weight, including your height, weight, activity level, and goals.

According to the National Academy of Sciences, an average sedentary man needs around 2,000 calories per day to maintain his weight. However, if you are trying to gain weight, you will need to eat more calories than this.

As a 6’3″, 155-pound man who lifts weights, you will likely need to eat around 3,000 calories per day to gain weight. However, this is just a starting point. You may need to adjust your calorie intake up or down depending on how your body responds.

Here are some tips for tracking your calorie intake:

• Use a food tracking app: There are many food tracking apps available that can help you track your calorie intake. This can be a helpful way to see how many calories you are actually consuming.

• Pay attention to portion sizes: It is important to be aware of your portion sizes. This can be difficult to do, but it is important to try to eat the correct amount of food.

• Listen to your body: If you are feeling hungry, eat. If you are feeling full, stop eating. It is important to listen to your body’s cues.

It is also important to make sure that you are eating a healthy diet when you are trying to gain weight. This means eating plenty of fruits, vegetables, and whole grains. It also means including lean protein in your diet.

Here are some tips for eating a healthy diet:

• Choose lean protein sources: Lean protein sources include chicken, fish, tofu, and beans.

• Eat plenty of fruits and vegetables: Fruits and vegetables are packed with nutrients and can help you feel full.

• Choose whole grains: Whole grains are a good source of fiber and can help you feel full.

• Limit processed foods: Processed foods are often high in calories and low in nutrients.

By following these tips, you can gain weight in a healthy way.