How to use the tip calculator
- Enter the bill amount before tax or after tax, depending on local custom.
- Set the tip percent. Standard restaurant tips in the US range from 15% to 20%.
- Change the split between value if you are dividing the check with others.
- Check Round up per person to make paying easier by rounding each share to the next whole dollar.
- Read the results below: the tip amount, the total bill, and what each person owes.
How the tip is calculated
The math behind this tip calculator is straightforward. The tip equals the bill multiplied by the tip percentage divided by 100. For example, on an $84.50 bill at 18 percent:
84.50 × 18 / 100 = 15.21
The total is the bill plus the tip: 84.50 + 15.21 = 99.71. When splitting among two people without rounding, each pays 99.71 / 2 = 49.855, which rounds to $49.86.
If you enable rounding, the tool calculates each person's exact share first, then rounds that share up to the next whole dollar using the ceiling function. Two shares of $49.86 round up to $50.00 each, making the rounded total $100.00.
How much to tip: standard percentages
Deciding how much to tip depends on the service type and local customs. In the United States, tipping is expected at sit-down restaurants, while it is optional or uncommon in many other countries. Here is a reference table of common tip percentages applied to a $100 bill:
| Service level | Tip % | Tip on $100 | Total |
|---|---|---|---|
| Poor or self-service | 10% | $10.00 | $110.00 |
| Adequate | 15% | $15.00 | $115.00 |
| Good (standard) | 18% | $18.00 | $118.00 |
| Excellent | 20% | $20.00 | $120.00 |
| Outstanding | 25% | $25.00 | $125.00 |
For food delivery, a flat amount of $3 to $5 or 15% of the order (whichever is higher) is typical. Bartenders usually receive $1 to $2 per drink.
Should you tip on the pre-tax or post-tax amount?
There is ongoing debate about whether to calculate the tip before or after sales tax is added. Technically, the tip should reward the service provided by the staff, not the government's tax revenue. Tipping on the pre-tax subtotal is mathematically fairer to you.
However, many point-of-sale systems automatically suggest tip amounts based on the final total including tax. If you want to be precise, subtract the tax from the total before entering the number into this tip calculator. For a quick estimate, tipping on the post-tax total only adds a few cents to a couple of dollars on most restaurant bills, so either approach is widely accepted.
Why rounding matters when splitting a bill
When acting as a tip and split calculator for a large group, exact division often produces awkward numbers like $37.426667 per person. Nobody wants to deal with fractions of a cent when settling up.
Rounding each person's share up to the nearest dollar solves this problem. It ensures the collected money always covers the full bill and tip, usually leaving a small surplus. That extra dollar or two can be left as additional gratuity or used to cover a future shared expense. To use this feature, simply check the "Round up per person" box after entering your party size.
Tipping etiquette around the world
Tipping norms vary drastically by country. In Japan and South Korea, tipping can be considered rude because excellent service is already expected and included in the price. Across most of Europe, a service charge is often built into the menu prices, and leaving a few extra euros or rounding up the bill is sufficient rather than calculating a full 15% to 20%.
In Canada, tipping culture closely mirrors the United States, with 15% to 20% being standard for restaurant servers. In Australia and New Zealand, workers earn a higher base wage, so tipping is appreciated but not obligatory. Always research local customs before traveling to avoid overpaying or unintentionally offending staff.
Worked examples
Each result below was produced by the same code the tool runs, so you can check your own numbers against them.
| Example | Input | Result |
|---|---|---|
| Dinner for two, 20% tip | Bill amount: 75.4; Tip percent: 20; Split between: 2; Round up per person: no | Tip: $15.08; Total: $90.48; Per person: $45.24 |
| Large group, 18% tip, rounded | Bill amount: 230; Tip percent: 18; Split between: 6; Round up per person: yes | Tip: $41.40; Total (rounded): $276.00; Per person: $46.00 |
| Quick coffee, 15% tip | Bill amount: 5.5; Tip percent: 15; Split between: 1; Round up per person: no | Tip: $0.83; Total: $6.33; Per person: $6.33 |
| Fine dining, 25% tip | Bill amount: 412.8; Tip percent: 25; Split between: 4; Round up per person: yes | Tip: $103.20; Total (rounded): $516.00; Per person: $129.00 |
FAQ
What is the standard tip percentage at a restaurant?
In the United States, the standard tip for sit-down restaurant service is 15% to 20% of the pre-tax bill. Use 15% for adequate service and 20% or more for excellent service.
How do I split a bill and tip evenly among friends?
Enter the total bill and your chosen tip percentage into this tip calculator, then set the "Split between" field to the number of people. The tool divides the total evenly and shows exactly what each person owes.
Should I include tax when calculating the tip?
Strictly speaking, you should tip on the pre-tax subtotal since the tax does not go to the server. However, many people tip on the final total for convenience, which slightly increases the tip amount.
What does the round-up option do?
The round-up option takes each person's exact share and rounds it up to the next whole dollar. This makes paying with cash or digital transfers simpler and guarantees the total bill is fully covered.
Is my payment information safe when using this tool?
This tip calculator runs entirely in your web browser. No data, bill amounts, or personal information is sent to any server. Your calculations remain completely private.
How much should I tip for food delivery?
For food delivery, a tip of 15% to 20% of the order total is standard, with a minimum of $3 to $5 regardless of the order size. Consider tipping more during bad weather or for very large orders.