Free Health & Fitness Tools
Body, pregnancy & date-based health calculators.
About Health & Fitness tools
Etoolio's health and fitness calculators turn a few numbers — your height, weight, birth date or last period — into clear, instant answers. Work out your BMI and healthy weight range, your exact age down to the day, an estimated pregnancy due date, your fertile window, or your calorie needs. Every calculation runs entirely in your browser, so the personal details you enter are never uploaded to a server or stored anywhere. These tools are built for quick everyday guidance and health awareness, not medical diagnosis: treat the results as a useful starting point and speak to a qualified professional about anything that matters. No sign-up, no app to install, and nothing to pay — open a tool and get your answer in seconds.