Disclaimer

Effective date: April 28, 2026

General disclaimer

The information, calculators, and articles on Zetta Calculators are provided for general educational and informational purposes only. All content is provided in good faith — we do our best to be accurate, current, and useful — but we make no guarantee of any kind, express or implied, regarding the accuracy, adequacy, validity, reliability, completeness, or applicability of any information on the Site to your specific situation.

Under no circumstance shall we be liable for any loss or damage of any kind incurred as a result of using the Site or relying on any information provided. Your use of the Site and your reliance on any information from it is solely at your own risk.

Not professional advice — by category

Financial calculators

Calculators in our finance, real estate, and business categories — including mortgage, retirement, compound interest, cap rate, loan amortization, ROI, and similar — are not financial advice. They produce estimates based on the assumptions and rate inputs you provide; the actual cost of a loan, return on an investment, or value of a property depends on factors no calculator can fully capture (your credit history, lender fees, market conditions, tax situation, etc.). Always consult a qualified financial advisor, mortgage broker, or accountant licensed in your jurisdiction before making a financial decision.

Tax calculators

Anything that calculates tax (sales tax, property tax, income tax estimates, etc.) is for general planning only. Tax law changes frequently, varies by jurisdiction, and depends on your full financial picture. Consult a CPA or licensed tax professional for filing-grade calculations.

Health, fitness, and pregnancy calculators

BMI, BMR, calorie, body fat, heart rate zones, pregnancy due date, and similar calculators provide general guidance based on widely-used formulas. They are not medical advice and not a substitute for consultation with a licensed physician, registered dietitian, or qualified medical professional. Do not change your diet, exercise routine, medication, or pregnancy care based on calculator outputs alone.

If you are pregnant, have a chronic medical condition, are taking medication, or are recovering from surgery, please consult your doctor before acting on health-calculator outputs.

Legal, contract, and date calculators

Date calculators, business-day counters, and similar tools produce mathematical results — they do not interpret legal contracts, statutes of limitations, court deadlines, or jurisdiction-specific rules. For any deadline that has legal consequences, consult a licensed attorney in the relevant jurisdiction.

Engineering and science calculators

Calculators in our science and construction categories use textbook formulas and produce results assuming inputs are correct, units are consistent, and standard conditions apply. They are not a substitute for licensed engineering review for any project subject to building codes, safety regulations, or professional liability.

Sports and training calculators

Pace, race-time predictor, and heart rate zone calculators provide estimates based on accepted models (Riegel, Tanaka, etc.). Individual physiology varies. If you have a heart condition, are returning to training after injury, or are starting a new exercise regimen after age 40, get cleared by a physician first.

Accuracy and currency of information

We make a reasonable effort to keep articles and calculators current with the underlying data sources (tax brackets, conforming loan limits, age-grade tables, FDA dietary guidelines, etc.). However, the timing of updates depends on when those sources publish changes and when we review them. The "Last updated" date on an article reflects when we last touched the content; the underlying data may have changed since.

External links

Where we link to external sites — research papers, government publications, news articles — we do so because they provide useful context. We do not endorse, control, or take responsibility for the content of external sites.

Affiliate links and advertising

We currently do not run advertising or affiliate programs. If we add either in the future, we will clearly disclose it on the relevant pages and update this disclaimer.

Errors and corrections

If you spot a calculation error, an outdated number, or a misleading explanation, please tell us. We take corrections seriously and will update the Site promptly. We are not, however, liable for losses incurred while content was inaccurate before we received and processed your correction.

By using this site

You acknowledge that you have read and understood this Disclaimer and that any decisions you make based on the Site's content are your responsibility. For complete terms of use, see our Terms and Conditions.

Contact

Questions about this Disclaimer or about a specific calculator? Email hello@zettacalculators.com or use our contact form.