ZairussalamTools

Disclaimer

Last updated April 19, 2026

Informational only

Every tool on this site is provided for informational and educational purposes. Nothing on this site constitutes medical, legal, financial, accounting, tax, or any other kind of professional advice. If a decision matters, consult a qualified professional.

Health and medical tools

Calculators in the Health category (BMI, BMR, TDEE, body fat, pregnancy due date, ovulation, menstrual period calendar, and others) cite peer-reviewed sources and use widely published formulas. They are screening tools — they do not diagnose, treat, cure, or prevent any condition. Do not use them as a substitute for consultation with a licensed clinician.

Calendar-based reproductive tools (ovulation and period calculators) are especially sensitive: they are not reliable contraception on their own, and their predictions assume cycle regularity that is not guaranteed in real life.

Accuracy of results

Every tool's output depends entirely on the accuracy of the input you provide. Mismeasurement, typos, or pasting the wrong file will produce wrong results. The site makes a best effort to implement each algorithm correctly using the cited sources, but does not guarantee bug-free, edge-case-free, or clinically precise behavior.

No warranty

The tools are provided as-is, without warranty of any kind — express or implied — including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. Use at your own risk.

Limitation of liability

The site owner is not liable for any direct, indirect, incidental, consequential, or special damages arising from your use of any tool on this site, including but not limited to data loss, misinterpreted results, or decisions made based on tool output.

External links

Links to third-party sites (research papers, external tools, Ko-fi) are provided for convenience. The site owner has no control over and assumes no responsibility for the content, accuracy, or practices of any third-party site.

Changes

The site owner may update, remove, or change any tool at any time without notice.