Calculators

Estimates kidney function by calculating the rate at which blood is filtered by the kidneys.

This calculator categorizes blood pressure readings based on systolic and diastolic pressure levels, identifying whether a reading falls into normal, elevated, or various hypertension stages.

Estimates the calorie surplus needed to gain a specific amount of weight over time. Based on the general guideline that 3500 calories equals approximately one pound of fat.

Calculates recommended daily intake of macronutrients (protein, carbs, and fat) based on calorie goals and activity level.

Calculate a baby's age in months, weeks, and days, and track milestones.

Calculates the cost per use and the estimated lifespan of a tube of toothpaste.

Estimates how long an oxygen tank will last based on its size, pressure, and flow rate.

Calculates measures of diagnostic test accuracy, including sensitivity (True Positive Rate) and specificity (True Negative Rate).

Calculates the Number Needed to Treat, which is the number of patients who need to receive an intervention for one patient to experience the desired outcome.

Estimates how long it takes for half of a drug dose to be eliminated from the body.