Privacy Policy

Last updated: October 2026

This is the privacy notice for calorlab.com, operated by CalorLab ("we", "us"). It covers the information we deal with and the options open to you. Briefly: your body measurements and activity level are computed locally and never leave your machine.

Scope of this policy

CalorLab does one thing — as a daily calorie calculator it turns your basal metabolic rate and activity level into a daily calorie target for losing, gaining or maintaining weight. It multiplies your BMR by an activity factor between 1.2 and 1.9, then applies a deficit or surplus of roughly 500 calories per day for about a pound of change per week. What follows concerns only that tool and the inputs involved in it.

Practically, all the calculation needs is your body measurements and activity level. Typical reasons people open CalorLab include checking whether a maintenance estimate is realistic, and in every case the work happens on the visitor's own device rather than ours.

Data you give the tool

This site has no backend that receives what you type. The page reads your input to compute an answer, shows it to you, and forgets it — because nothing was ever sent anywhere in the first place. The arithmetic is identical regardless of who is looking at the screen.

How long data is kept, and how it is protected

No personal calculation data is held by us at any point, which makes retention a non-issue for the tool. The site itself is delivered over encrypted connections and kept up to date.

Children's privacy

These tools are built for a general adult audience rather than for children. We do not knowingly collect personal information from anyone under 13, and would remove it on being told.

The rights you have

Privacy law in some regions gives you the right to see, correct, delete or restrict the use of personal data held about you. In practice we hold almost nothing tied to you, since calculator input never reaches us, but any request you make will be taken seriously.

When this policy is revised

If the way we handle data ever changes, this page will be revised and the date at the top adjusted accordingly. Continuing to use the site after an update means you accept the revised policy.

Information collected as you browse

Our host and any analytics we run record routine request data — the kind every web server sees, such as IP address, user agent, referrer and which pages were opened. That data serves maintenance and abuse prevention; it is never combined with the values you enter.

Cookies and advertising

We set a cookie only to remember whether you have dismissed the cookie notice. Third-party advertising partners, including Google, may use cookies or similar technologies to serve ads based on your visits to this and other sites. You can control personalized advertising in your browser settings or through Google's ad settings. Blocking cookies does not affect the tool: the calculation requires none.

Analytics

Any measurement we do is statistical rather than personal: how many people opened a page, roughly where from, and which tools get used. It is aggregated before it is read, and the values you type are never part of it.

Sensitive health figures

Figures such as weight, height, age, body-fat percentage or calorie targets can be sensitive. On this site they are treated as ordinary input: they stay in the browser tab and are never sent anywhere. If you clear the page, they are gone.

Getting in touch about privacy

Any question about this policy is welcome through the contact page, or you can write to support@calorlab.com.