TOOLS FOR EVERYDAY LIFE
Plan well. Eat well.
A useful starting point for your week, with clear estimates, plain explanations and privacy built in.
Wellness & Meal Planning Calculator
Explore adult BMI, optional energy estimates and a practical weekly meal count. No sign-up. Your inputs stay inside an isolated calculator and are cleared when you leave or reset it.
Start with the context, keep the numbers in perspective. Your health professional can help interpret measurements alongside your history and individual needs.
Methods you can inspect
Adult BMI: CDC screening categories for adults 20+. The reference weight interval uses BMI 18.5 ≤ BMI < 25; it is not a personal weight target.
Read the CDC BMI guidanceEnergy equations and activity ranges
| Coefficient | Age band used | Equation |
|---|---|---|
| Male | 20–29 | 15.057 × W + 692.2 |
| Male | 30–59 | 11.472 × W + 873.1 |
| Male | 60+ | 11.711 × W + 587.7 |
| Female | 20–29 | 14.818 × W + 486.6 |
| Female | 30–59 | 8.126 × W + 845.6 |
| Female | 60+ | 9.082 × W + 658.5 |
Published age bands overlap at boundaries; this implementation uses 20–29, 30–59 and 60+ consistently. Daily energy range = estimated BMR × PAL. Light: 1.40–1.69; moderate: 1.70–1.99; vigorous: 2.00–2.40.
Read FAO methodology and limitationsFor goals that need more support
A personal weight-change plan or protein target needs additional context. This calculator does not infer either. NIDDK’s Body Weight Planner is a separate official resource for eligible adults.
Visit the NIDDK Body Weight Planner