Calculator
Restaurant Tip Calculator
This calculator shows how much to tip based on your bill total and the service level you experienced. It uses 20 percent as the baseline for standard full-service dining - the figure the National Restaurant Association and Emily Post Institute both cite as the current US norm - and adjusts from there for exceptional service, counter or takeout, and large-party situations where automatic gratuity may already be included.
No sign-up, no email gate, and nothing is stored - the result updates as you type. The only decision that matters is whether a gratuity line already appears on your bill; if it does, the math is already done and you do not add again.
How this calculator works
The estimate starts at 20 percent of the pre-tax bill total. The National Restaurant Association's annual dining research consistently places 20 percent as the US standard for full table service, a figure the Emily Post Institute echoes as the current etiquette floor. Our restaurant tipping guide covers the history of why 15 percent no longer reads as adequate and how regional variation plays in.
The service-level selector applies a factor to that baseline: exceptional service shifts the rate to 25 percent (factor 1.25); a large-party check shifts it to 18 percent (factor 0.9) to reflect the social norm at that party size and the likelihood of an auto-gratuity already appearing on the bill; counter or takeout service shifts to 10 percent (factor 0.5), consistent with the lower labor involved. The spread of plus or minus 5 percent reflects that tipping is a social norm with a real range, not a precise calculation.
All math runs on the pre-tax subtotal. Tipping on the post-tax total overcharges you by the tax rate and is not the standard convention, per the Emily Post Institute. See our average restaurant meal cost guide for how meal totals vary by price tier, and our dine-in vs takeout vs delivery cost guide for how service charges on delivery platforms differ from restaurant tipping.
Tax-inclusive vs pre-tax tipping
Restaurant checks in the US show the subtotal (food plus drinks, before tax) and then add sales tax as a separate line. The standard convention - supported by the Emily Post Institute and consistent with National Restaurant Association guidance - is to tip on the pre-tax subtotal. Tipping on the tax-inclusive total is not wrong, but it is not expected and will not read as undertipping. The calculator uses the pre-tax figure you enter, so enter your subtotal, not the grand total, for the most accurate result.
Frequently asked questions
Is 15 percent still an acceptable tip?
It is below the current US norm. The National Restaurant Association and Emily Post Institute both cite 20 percent as the standard floor for full table service. Fifteen percent reads as mild dissatisfaction with the service in most US markets today - leave 15 percent when service was notably below expectations, not as the default.
Do you tip on tax?
The standard US convention is to tip on the pre-tax subtotal, which is what this calculator uses. Tipping on the total-after-tax is not wrong and will not offend anyone, but it is not expected. The difference on an $80 check in an 8 percent sales-tax market is about $1.30 - a small amount, but the principle is clear.
What if gratuity is already included?
Check the bill line by line before adding anything. If you see a line reading 'gratuity,' 'service charge,' or 'auto-gratuity,' the restaurant has already collected it and the server will receive it. Adding a second tip on top is your choice, but it is not expected. Auto-gratuity on parties of 6 or more is common US practice.
Should I tip on a takeout or delivery order?
For counter or takeout, 10 percent is the current US norm - service labor is lower and the Emily Post Institute treats a tip as appreciated but not obligatory. For third-party delivery (DoorDash, Uber Eats), the platform tip goes to the driver, not the restaurant staff; 15 to 20 percent of the food subtotal is standard for drivers.
Does this calculator store my information?
No. The calculation runs entirely in your browser. Nothing is sent to a server, no account is created, and there is no email gate. Refresh the page and the inputs return to defaults. Nothing is retained on our end between sessions.