Health calculators
General wellness estimates. These are educational tools, not medical advice.
BMI calculator
Body Mass Index from your weight and height.
Daily calorie needs (TDEE)
Estimated calories per day using the Mifflin-St Jeor formula.
Water intake calculator
A general daily hydration target based on weight and activity.
Weight loss / weight gain calorie target
A daily calorie target based on your goal and desired weekly rate of change.
Pregnancy due date calculator
Estimate your due date using the first day of your last menstrual period (Naegele's rule).
Health calculators on this page are general estimates only and do not account for individual medical conditions. Speak with a healthcare provider for personalized guidance.
Frequently asked questions
How is the calorie target calculated?
We estimate your maintenance calories (TDEE) using the Mifflin-St Jeor formula, then add or subtract calories based on your goal — roughly 7,700 kcal per kg of body weight change.
How accurate is the due date calculator?
It uses Naegele's rule (280 days from your last period), the same starting estimate doctors typically use before an ultrasound. Actual due dates vary — always confirm with your healthcare provider.