RediCalc.com
Last updated: June 1, 2026

Tip Calculator

Calculate tips quickly. Choose a common percentage or enter a custom one, and split the bill between multiple people.

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Understanding the Tip Calculator

A tip calculator works out the gratuity on a bill at any percentage and splits the total across a group. It takes the awkward arithmetic out of the end of a meal, especially when you want to tip on the pre-tax amount or divide an uneven bill fairly. The result is a quick, fair number that avoids both under-tipping and overpaying.

How much to tip

In the US, 15% to 20% is the customary range for table service, with 20% common for good service. Some people tip on the pre-tax subtotal rather than the taxed total, which slightly lowers the amount. Norms differ by country and service type, so a calculator that lets you set any percentage adapts to wherever you are dining and your own preferences.

Splitting the bill fairly

Dividing a bill evenly is straightforward, but groups often want to account for who ordered more. A tip calculator that splits by number of people gives a clean per-person figure for even splits, and seeing the per-head total helps everyone contribute the right amount quickly without holding up the table or shorting the server.

Tips & things to know

  • In the US, 18 to 20 percent is standard for good sit-down service.
  • Tipping on the pre-tax subtotal is acceptable and slightly reduces the amount.
  • For groups, agree up front whether to split evenly or by what each person ordered.

How Tips Are Calculated

Tip = Bill × (Tip% / 100)

Per Person = (Bill + Tip) / Number of People

How to Use the Tip Calculator

1

Open the Tip Calculator

Navigate to the Tip Calculator page on Redicalc. The calculator loads instantly with no sign-up required.

2

Enter your values

Fill in numerical values into the input fields. Toggle between metric and imperial units if available.

3

Review your results

Your tip results appear instantly as you type. Review the breakdown, charts, or detailed analysis provided.

4

Adjust and compare

Try different input values to compare scenarios. This helps you understand how changes affect the outcome.

5

Share or save your results

Use the copy or share buttons to save your results. You can also bookmark the page for quick access later.

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Frequently Asked Questions

How much should I tip?

15-20% is standard in the US for restaurant service. 18% is a common default.

Can I split the bill?

Yes — enter the number of people and the calculator will show the per-person total and tip amount.