Terms & Conditions

Last updated November 13, 2026

These Terms & Conditions apply to your use of ProTipCalculator.com, including its calculators, guides and blog.

Using the calculators

You may use the tools for personal and business estimates and share links to individual pages. Enter figures that use the same currency, units and time period. If the result affects a bill, order, tax calculation or loan, check the underlying figures against the original documents before acting.

Inputs, rounding and estimates

• Dining and tips. You choose the tip percentage and whether to calculate it before tax. Check the receipt for an included gratuity or service charge. An equal split can leave a remainder, which the bill summary shows when applicable.
• Shopping and taxes. Use the rate and discount terms for your specific purchase. Retailer rules, taxable amounts and rounding can change the final charge.
• Seller fees. Use the fee rates, fixed charges and fee base from your marketplace account. The calculators depend on the charges you enter.
• Finance. Check what each result includes. For example, the mortgage tool estimates principal and interest. A lender’s quote may also include taxes, insurance or fees.

Educational information

Calculators and guides provide general information and estimates. They are not financial, investment, tax or legal advice. Consult the original agreement or a qualified professional if you need advice for your circumstances.

Acceptable use and site materials

Use the site lawfully. Do not attempt to disrupt its operation, gain unauthorized access, submit spam or impersonate another person through the contact form. You may link to the site and use your own calculation results. Obtain permission before republishing substantial portions of the site’s original guides, code or design, except where applicable law permits reuse.

Third-party services and links

Links to marketplaces, lenders and other third parties are provided for reference. Those services operate under their own terms and privacy policies. A tool named for a marketplace helps estimate its fees using the inputs you provide.

Availability and responsibility

We may correct formulas, revise examples or change available tools. Keep a copy of any result you need for your records. To the extent permitted by applicable law, the tools are provided as available, without a guarantee of uninterrupted access or suitability for a particular transaction. These terms do not limit rights or remedies that applicable law makes mandatory.

Changes and questions

When these terms change, the updated version will appear on this page. See the Privacy Policy for information about site visits and contact messages. To report a calculation issue or ask about these terms, use Contact Us.