Tip calculator
This tip calculator adds a chosen percentage to a bill and shows the gratuity, total and amount per person. Currency changes only how results are displayed; no exchange rate conversion is performed.
The reverse mode finds the percentage of a tip you already know. Enter the bill and tip amounts to see what share of the bill the gratuity represents.
Tip
$14.40
Tip percentage: 18%
Total with tip
$94.40
Each person pays
$47.20
$7.20 tip per person
Formula
tip = bill × percentage ÷ 100
Current-value substitution
$80.00 × 18% ÷ 100 = $14.40
Tip calculation formulas
- Tip = bill × percentage ÷ 100.
- Total = bill + tip.
- Amount per person = total ÷ number of people.
- Percentage from a known amount = tip ÷ bill × 100.
Restaurant tip example
For an $80 bill and an 18% tip, gratuity is $80 × 18 ÷ 100 = $14.40. The total payment is $94.40.
If two people split that total equally, each pays $47.20, including $7.20 of the tip. Calculations retain full precision until the displayed amounts are rounded.
Quick tip amounts
| Bill | 10% | 15% | 20% |
|---|---|---|---|
| $20 | $2.00 | $3.00 | $4.00 |
| $40 | $4.00 | $6.00 | $8.00 |
| $80 | $8.00 | $12.00 | $16.00 |
| $120 | $12.00 | $18.00 | $24.00 |
| $200 | $20.00 | $30.00 | $40.00 |
What to check before paying
- Check whether a service charge or gratuity has already been added to the bill.
- Customs and expected percentages vary by country, venue type and quality of service.
- If a discount applies only to food, decide whether you want to tip on the pre-discount or post-discount amount.
- For different orders, allocate individual items first, then split shared food and gratuity.
- Use the split bill calculator when you need equal shares with optional rounding.
Frequently asked questions
How do I calculate a tip percentage?
Multiply the bill by the percentage and divide by 100. An 18% tip on an $80 bill is $14.40.
How do I find the total with tip?
Add the calculated tip to the bill. An $80 bill plus $14.40 gratuity gives a total of $94.40.
How do I split a tip among several people?
Add the tip to the bill, then divide the total by the number of people. The calculator also reports the tip per person.
How can I find the percentage from a tip amount?
Divide the tip by the bill and multiply by 100. A $15 tip on an $80 bill is 18.75%.
Should I tip when service is already included?
Any additional amount is generally discretionary. Check the wording on the bill and the venue's local practice.
Updated: 2026-08-16