About Us
ProTipCalculator.com helps you work out what to tip, split a bill fairly and compare costs before you pay, buy or sell.
Find the right calculator
- Dining and tips. Use the Tip Calculator & Bill Splitter to share a bill evenly. Use the Shared Items Bill Splitter when diners order different meals or only some people share a dish. The Automatic Gratuity Calculator helps you check whether an included gratuity already meets your target.
- Shopping and tax. Compare a fixed coupon with a percentage discount, check price per unit, or estimate a checkout total after discounts and tax.
- Selling and pricing. Estimate the fees and profit on an order or use the Target Profit Price Calculator to work backward from the amount you want to earn.
- Finance. Compare monthly loan payments, estimate the principal and interest on a mortgage, or see how an asset’s estimated value changes over time.
How to use the tools
- Choose a calculator and select the currency of your bill, order or estimate.
- Enter figures from your receipt, seller statement or loan quote. Check each field’s label for the rate, unit or time period it expects.
- Select Calculate where shown. Read the result and use the comparison table or chart, where available, to see how changing an input affects it.
- Use the worked example and formula beneath the tool to check how the result was calculated.
A quick bill-splitting example
For an $80 bill split evenly between two people, a 20% tip on the full bill adds $16. The total becomes $96 and each person pays $48. If the receipt includes tax and you want to tip before tax, enter that amount under the tax options and select the before-tax setting. If the receipt already includes gratuity, check it before adding a second tip.
How we present results
The calculators run in your browser. The currency selector changes how amounts are displayed and rounded. It does not convert them at an exchange rate. Examples show the assumptions behind each result, and scenario tables let you compare several values while holding other entries steady.
Questions, corrections and suggestions
If a result looks wrong or a guide leaves something unclear, send us the calculator name, currency, sample inputs and the result you expected. Use the Contact Us page or email saniashahzadi0000@gmail.com.