Knowing your body fat percentage is a powerful piece of information. It can be used to judge overall health, adjust your caloric intake, and help you establish reasonable fat loss targets. The calculator below asks for your weight, body fat percentage, and target body fat percentage. With that information you learn your lean mass, fat mass, and how much body fat you need to lose to make your target percentage. It also gives you the approximate number of calories you need to burn to eliminate that body fat.
| Age | Increased Risk (BMI less than 18.5) |
Healthy (BMI 18.5-24.9) |
Increased Risk (BMI 25.0-29.9) |
Greatly Increased Risk (BMI 30.0 +) |
|---|---|---|---|---|
| 20-39 | Less than 8% | 8% to 19% | 20% to 24% | 25% + |
| 40-59 | Less than 11% | 11% to 21% | 22% to 27% | 28% + |
| 60-79 | Less than 13% | 13% to 24% | 25% to 29% | 30% + |