Tip Calculator

Last Updated on March 9, 2026 | 9 : 55 pm by Anas Brittany

Use this tip calculator to quickly calculate a tip based on your bill amount and tip percentage. It also helps you split the bill between multiple people and optionally include sales tax—useful for restaurants, delivery, salons, rideshares, and any service where tipping is common.

How to Calculate a Tip

A tip is typically calculated as a percentage of the bill. This tip calculator multiplies your bill amount by the tip percentage to find the gratuity amount, then adds it to the bill total.

Tip formula:
Tip = Bill × (Tip Percentage ÷ 100)
Total = Bill + Tip

This is useful when you want fast answers for common tipping rates like 15%, 18%, or 20%.

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Examples: 20% of $100 and 20% of $40

If you’re calculating 20% of $100, the tip is:

20% of $100 = $20.00
Total bill = $120.00

If you’re calculating 20% of $40, the tip is:

20% of $40 = $8.00
Total bill = $48.00

These examples are common searches because many people quickly want the gratuity amount without doing the math manually.

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What’s a 15/20 Tip?

If you’ve seen the question “whats a 15/20”, it usually refers to common tip rates: 15% tip versus 20% tip.

• 15% is often used for standard service
• 20% is often used for great service or larger groups

This calculator lets you switch between 15% and 20% instantly so you can compare totals.

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Gratuity vs Tip

Gratuity vs tip is a common point of confusion. A tip is usually optional and chosen by the customer, while gratuity may be automatically added to a bill (often for large parties or events).

If a bill already includes gratuity, you may not need to tip extra unless you choose to add more for exceptional service. Always check the receipt for terms like “service charge” or “gratuity included.”

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Frequently Asked Questions

Is a 20% tip good?

A 20% tip is commonly considered a strong standard for good service in the United States, but tipping norms vary by location and service type.

How do I split a tip between people?

Use the split option to divide the total bill (including tip) by the number of people paying.

Should I tip on tax?

Some people tip on the pre-tax subtotal, while others tip on the final total. Either approach is common depending on preference.