This calculator will determine how many calories you should eat on a daily basis if you are trying to gain weight. Learn how many calories to gain weight safely and how to gain weight fast. The calculator will only show you safe levels of increased calories. When selecting your activity level use:

• Sedentary (little or no exercise)
• Lightly active (light exercise/sports 1-3 days/week)
• Moderatetely active (moderate exercise/sports 3-5 days/week)
• Very active (hard exercise/sports 6-7 days a week)
• Extremely active (very hard exercise/sports & physical job or 2x training)