Disclaimer
Please read this before relying on any result.
General
Every calculator uses the inputs you give and a published formula or a clearly stated rule of thumb. If an input is wrong, or your situation is unusual, the result may not apply to you. We explain the method behind our tools on the methodology page.
Health, pregnancy and nutrition tools
This covers the pregnancy, ovulation, BMI, calorie, macros, nutrition, body fat and water intake tools and related guides.
- Results are estimates and are not a diagnosis, treatment or medical advice.
- BMI, body fat and calorie formulas are population-based and can be wrong for athletes, older adults, children, people who are pregnant and people with medical conditions.
- A due date is an estimate. Your doctor or midwife confirms your dates, often with an ultrasound.
- Ovulation and fertile-window predictions are estimates and must not be used as contraception.
- Ask a qualified professional before changing your diet, exercise, fluid intake or medication, or if you have a health concern. In an emergency, contact your local emergency service.
Financial tools
This covers the mortgage, loan, payment, auto loan, compound interest, retirement, salary, budget, credit card and currency tools.
- Results are estimates for comparison and planning. They are not a quote, an offer of credit, or financial, tax or legal advice.
- Actual payments depend on your lender's terms, fees, taxes, insurance and rounding rules, which may differ from the assumptions listed on each page.
- Investment and retirement projections use steady assumed returns. Real returns vary and can be negative, and past performance does not guarantee future results.
- Tax tools are simplified. Tax rules, brackets and deductions change and differ by place. Check with a tax professional or your tax authority.
- Currency rates shown are approximate reference values and may differ from live market, bank or card rates.
Entertainment tools and games
Tools such as compatibility or destiny calculators, and all games, are for fun. They have no scientific or predictive value and should not guide real decisions.
Accuracy and corrections
We aim to keep the Site accurate but cannot guarantee it is free of errors or fully up to date. If you spot a mistake, please tell us through the contact page, with the page address and the numbers you entered.
External links and advertising
We are not responsible for third-party websites, products or advertisements that appear on or are linked from the Site.
Last updated: October 7, 2026