Tip Calculator
Tip, total, and per person split for restaurant bills, with common percent presets.
What it does
Tipping math is short, but tables argue about it because the base moves. Some people tip on the pre-tax food total, others on the final bill. The gap is small at normal rates, near one percent of the bill, so either habit is fine as long as the table agrees first.
The tool above takes the bill, a percent, and the head count. It returns the tip, the total, and each share. Splits divide the whole total evenly, tip included.
In the United States, 15% marks standard sit down service and 18 to 20% marks good service. Buffets and counter service run lower. Some restaurants add an automatic charge for large parties, so check the receipt before adding more.
How to use
- Enter the bill exactly as agreed: pre-tax or post-tax, but one number only.
- Enter the tip percent. Start from 18 for good service and move it with quality.
- Enter the number of people. The split divides the total with tip.
- Round the per person share up to whole dollars when paying cash to keep it simple.
Formula
- bill
- Meal total as agreed: pre tax or post tax, one number.
- percent
- Tip rate. 18% means multiply by 0.18.
- people
- Head count dividing the total with tip.
Percent means per hundred, so 18% is 0.18 of the bill. Splitting after adding the tip keeps shares fair when everyone shared the meal. For uneven orders, run the tool once per person instead.
Worked example
Example: $48.50 bill, 18%, two people
Dinner total 48.50, good service at 18%, split two ways.
- Tip: 48.50 x 0.18 = $8.73.
- Total: 48.50 + 8.73 = $57.23.
- Each pays: 57.23 / 2 = $28.62 after rounding.
- Tip share each: 8.73 / 2 = $4.37.
Reference table
| Situation | Usual percent | On $50 |
|---|---|---|
| Okay service | 15% | $7.50 |
| Good service | 18% | $9.00 |
| Great service | 20% | $10.00 |
| Large party auto charge | 18% (often preset) | $9.00 |
| Counter or takeout | 0 to 10% | $0 to $5.00 |
Limits
- Even splits assumed. Uneven orders need per person runs.
- Customs differ by country and venue.
- Tax and discount handling varies by table habit.
- Cash rounding can miss the total by small change.
Common mistakes
- Tipping on top of an automatic large party charge without noticing it.
- Splitting before adding the tip, which leaves the tip short.
- Rounding down each share, so the collected cash misses the total.
- Using the card total with a pending hold as the base instead of the receipt subtotal.
- Copying another country habit where service is already included.
Try it yourself
Quick checks. Answers sit tucked under each question.
$100 bill, 20%, four people?
Tip $20, total $120, each pays $30.
15% on $60?
60 x 0.15 = $9.00.
Questions
Do I tip before or after tax?
Either is accepted. Pre-tax is the older norm and slightly lower; post-tax is simpler from the receipt. Pick one and stay consistent.
How much is standard in the US?
About 15% for standard sit down service and 18 to 20% for good to great service. Adjust for clear misses or standout care.
How do we split fairly with different orders?
Run the tool per person with each subtotal, or split the shared items evenly and keep personal items separate.
What about delivery?
Many people pay 10 to 15% with a small minimum so short trips stay worth it. Bad weather and stairs argue for the higher end.
Is tipping expected everywhere?
No. Customs differ by country, and some restaurants include service. Check the menu or receipt for a service line first.