Disclaimer

01Health calculators

Health calculators (such as TDEE, keto, BMI, cholesterol ratio, cardiac output and body-shape calculators) give general estimates for healthy adults unless stated otherwise. They do not diagnose, treat or prevent any condition and are not a substitute for advice from a doctor, registered dietitian or other qualified health professional. Seek medical advice before making significant changes to your diet, exercise or treatment, especially if you are pregnant, under 18, or have a medical condition.

02Finance, tax and paycheck calculators

Finance and paycheck calculators use the tax rates, limits and rules for the year shown on each page. Your actual pay, tax or investment results can differ because of your personal circumstances, local taxes, employer payroll settings and changes in law. They are not tax, investment or legal advice. Confirm important figures with a qualified accountant, tax adviser or financial professional, or with official sources such as the IRS and your state revenue department.

03Construction and engineering calculators

Material estimates are approximate and do not replace measurements on site, manufacturer instructions, local building codes or advice from a qualified contractor or engineer. Always check safety-critical work with a licensed professional.

04Pet and animal calculators

Animal pregnancy, age and care calculators give typical ranges. Every animal is different — consult a veterinarian about your animal's health.

05Pregnancy, fertility and period calculators

Period, ovulation and pregnancy-related calculators give population-based estimates. They are not a method of contraception and cannot confirm or rule out pregnancy. Talk to a doctor, midwife or sexual health clinic about your situation.

06Fitness, sports and military test calculators

Exercise and sports calculators give estimates for training. Speak to a doctor before starting a new exercise programme if you have a health condition. Military fitness test calculators (such as the Navy PRT and ACFT/Army Fitness Test calculators) are unofficial; official scores and standards are those published by the service and recorded by your unit.

07Marketing, advertising and e-commerce calculators

Advertising budgets, platform minimums and e-commerce fees change often and vary by country. Figures on these pages show the date they were checked; confirm current rules with the platform before you spend money.

08Accuracy and updates

We check our calculators against published sources and worked examples and update them when rules change, but we cannot guarantee that every result is complete, accurate or current. If you find an error, please tell us at support@tuffsearch.com — our Editorial Policy explains how we correct it.

09Advertising

Tuff Search displays ads served by Google AdSense. Ads are not endorsements, and advertisers do not influence our calculators or content.

10External links

We link to official and third-party sources for reference. We are not responsible for their content.

Use of this website is also governed by our Terms of Use.