USEFUL NUMBERS. ROOM FOR REAL LIFE.
Meet helsy.
helsy is a small independent utility-site project for adults interested in nutrition, body measurements, recreational lifting and running. We make common calculations quick and their assumptions easy to see.
Transparent methods
Each calculator identifies its equation, input definitions, worked example and primary sources. The project is the publisher; no named medical reviewer, clinical accreditation or institutional endorsement is claimed. Content dates indicate substantive preparation or revision, not a medical review.
Small by design
Calculations run in your browser. There are no accounts, food databases or connected wearables. Saves happen only when requested. Sharing is explicit and carries only the documented inputs.
Keeping it free
helsy is designed to support optional donations and unobtrusive advertising. No advertising or tracking is active. A donation link appears only when a destination is configured.