HEALTH REFERENCES WITH CLEAR LIMITS

Health & Family Calculators

Use health and family planning references with medical limits shown before the result.

Choose a calculator

Open a tool and adjust its assumptions for your situation.

9 tools

Weight & body measures

Adult BMI and a height-based reference weight range.

Adult BMI CalculatorCalculate adult BMI using pounds and feet/inches.Ideal Weight CalculatorSee a simple adult healthy-weight range from BMI.

Calories & metabolism

Adult calorie-needs and basal-metabolic-rate estimates.

Calorie Needs CalculatorEstimate daily calories using Mifflin–St Jeor.BMR CalculatorEstimate basal metabolic rate with Mifflin–St Jeor.

Pregnancy date references

Due-date, completed-week, and conception-date reference estimates.

Pregnancy Due Date CalculatorA first estimate based on a last menstrual period date.Pregnancy Week CalculatorCount weeks and days from a last menstrual period date.Conception Date Estimate CalculatorCount backward from an estimated due date.

Body composition and nutrition arithmetic

Circumference and macro-conversion references with visible medical limits.

Body Fat Percentage CalculatorGet a circumference-based body-fat estimate in inches.Macro CalculatorTurn a calorie plan into a transparent macro split.

Before you use these estimates

Health tools are educational estimates, not diagnosis, prenatal care, nutrition treatment, or medical care. Seek professional care for symptoms, decisions, and questions about your situation.