Useful estimates, not professional advice.

LifeWidget calculators, forecasts and written materials are provided for general informational and educational purposes. We aim to use sensible formulas and test common cases, but no tool can account for every circumstance and no result is guaranteed to be complete, current or error-free.

Advertising and business forecasts

ROAS, CPC, CPA, revenue, profit and campaign-planning results are mathematical scenarios based entirely on the inputs supplied. Actual advertising performance can differ because of auctions, competition, attribution, tracking, creative quality, conversion delays, refunds, taxes, customer behavior and platform changes. A forecast is not a promise of revenue, profit or campaign performance.

Marketplace and payment fees

Amazon, PayPal and other third-party platforms may change fees, categories, currencies, programs and eligibility rules without notice. Any related calculator will be an estimate for the stated market and review date. Confirm important amounts using the platform’s current official documentation or account information.

Financial, tax and accounting decisions

Money-related tools do not constitute financial, tax, accounting, lending, investment or insurance advice. They do not consider your full circumstances. Consult an appropriately qualified professional before making a consequential decision.

Employment, legal and regulatory decisions

Work-hour, deadline and business tools do not interpret employment contracts, payroll requirements, laws or regulations. Requirements differ by location and situation. Verify important conclusions with the relevant organization, authority or qualified professional.

Health and safety

LifeWidget does not currently provide diagnostic medical tools. No LifeWidget content should replace professional medical advice, emergency assistance or safety instructions.

External links and commercial relationships

Links to external services are provided for convenience and do not place those services under LifeWidget’s control. Future affiliate links, sponsorships or advertising will be disclosed. Compensation may be received when a visitor uses an identified affiliate link, without changing the calculator result.

Your responsibility

Check inputs carefully, consider the stated assumptions and independently verify important results. By using the site, you accept responsibility for deciding whether a tool is appropriate for your purpose. Additional rules appear in our Terms of Use.