Disclaimer

General

All MasterTool tools are provided for estimation and general information only. Verify every result before acting on it, especially where money, health, safety or legal compliance is involved.

Financial, tax and wealth

Results are estimates for general information only and are not financial, tax or accounting advice. Fees, rates and rules change — verify figures with the official source and a qualified professional before making decisions. Tax, IRMAA, Social Security and state wage figures come from static tables that may be outdated — confirm with official sources (IRS, SSA, Medicare, state labor departments) or a qualified professional.

Marketplace and payment fees

Fee figures are stored in our static fee table and change over time. Confirm current rates against the platform's official fee page before relying on them. Each fee tool shows the date its table was last updated.

Health and fitness

This tool provides general estimates and is not medical advice. Consult a qualified healthcare professional before making health, diet or exercise decisions. Any blood alcohol estimate is an estimate only and never means it is safe or legal to drive.

Pets

This tool gives general estimates and is not veterinary advice. Contact your veterinarian — or an animal poison control center in an emergency — about your pet's health. The Dog Chocolate Toxicity Checker is an urgency guide only — in a real incident contact a veterinarian or animal poison control immediately.

Electrical and HVAC

Electrical estimates are for planning only. All electrical work must comply with local codes (such as the NEC) and should be performed or inspected by a licensed electrician. The Manual J tool is a simplified estimator, not a certified ACCA Manual J calculation.

Aviation

For planning and training reference only. Always use your aircraft's approved flight manual / POH and official weather and performance data. The pilot in command is responsible for all flight decisions. This site is not a substitute for official flight planning.