Health & Fitness Calculators

ArrayKit's health and fitness calculators help you estimate BMI, daily calories, body fat, macronutrients, target heart rate, one-rep max and pregnancy dates without sending your body measurements to a remote server. Each calculator runs entirely in your browser, so the height, weight, age and other figures you enter stay on your device. They use widely cited formulas such as Mifflin-St Jeor for BMR, the US Navy method for body fat and Naegele's rule for due dates. These tools give general estimates for education and planning only — they are not medical advice, so talk to a qualified healthcare professional about anything that matters for your health.

Часто задаваемые вопросы

Do I need to install anything to use these health calculators?
No. Every health and fitness calculator on ArrayKit runs directly in your browser, so there is nothing to install and the measurements you enter are processed locally on your device.
Do these health calculators upload my body measurements?
No. All of the math happens in your browser, so the height, weight, age and other figures you type never leave your device or get uploaded to ArrayKit.
Are the health and fitness results medical advice?
No. These calculators provide general estimates based on standard formulas for education and planning only. They cannot account for your full health picture, so consult a qualified healthcare professional for medical decisions.
Which health and fitness calculators does ArrayKit offer?
The category covers body metrics (BMI, body fat, BMR, TDEE), nutrition (calories, macros, protein, carbs), fitness (pace, one-rep max, heart rate) and pregnancy tools like due date, ovulation and conception calculators.