About CalcFit & MetaSys Limited
Updated · MetaSys Limited
Fitness calculations you can inspect, with clear limits and no account required.
Who operates CalcFit?
CalcFit is owned and operated by MetaSys Limited. We build and maintain this collection of free calculators for people who want to understand fitness measurements and everyday unit conversions.
MetaSys is a technology company. CalcFit is an educational website, not a healthcare provider. We do not claim that our content has been individually reviewed by a doctor or registered dietitian.
What you can do here
Use the calculator directory to estimate energy needs, explore body measurements, plan training scenarios, or convert units. Each result depends on the measurements and assumptions you enter. A precise-looking number is not necessarily an accurate prediction of your body.
How the tools are made
Our tools combine published equations, standard conversion factors, and explicitly described rules of thumb. These are different kinds of evidence: a kilogram-to-pound conversion is exact within rounding; an energy estimate or race prediction has substantial individual uncertainty. Our methodology and sources and editorial policy explain that distinction.
Your measurements stay in your browser
Calculator inputs and results are processed on your device. We do not send these values to MetaSys or Google Analytics. Hosting still involves ordinary connection data, and optional analytics or advertising may process other information as explained in our Privacy Policy.
Keeping the service useful
Access to the calculators is free. If advertising is enabled, it will be separate from the calculator controls. Advertising does not constitute an endorsement or influence the underlying arithmetic.
Contact the operator
Email hello@metasysltd.com with “CalcFit” in the subject, or use our contact page. For a calculation issue, share an example using fictional measurements rather than sensitive health information.