How do you calculate a tip?

Multiply the bill amount by the tip percentage divided by 100. Tip Amount = Bill x Tip% / 100. Total = Bill + Tip Amount. For example, an 18% tip on an $85 bill: tip = $85 x 0.18 = $15.30, total = $100.30. A quick mental shortcut: find 10% by moving the decimal point one place left ($8.50), then add half for 15% ($8.50 + $4.25 = $12.75) or double for 20% ($17.00). Common tip amounts on an $85 bill: • 10% = $8.50 (total $93.50) — basic, often considered low • 15% = $12.75 (total $97.75) — standard minimum in the US • 18% = $15.30 (total $100.30) — good service • 20% = $17.00 (total $102.00) — the easy-math standard • 25% = $21.25 (total $106.25) — excellent service

How much should you tip at a restaurant?

In the United States, tipping norms for sit-down restaurants are firmly established: 15–20% is the standard range, with 20% being the widely accepted benchmark for good service and 25% for excellent. Tipping below 15% is considered a signal of poor service rather than a budget choice. These norms vary significantly by country — many European and Asian countries have no tipping culture at all, and attempting to tip can sometimes cause offence. US tipping guidelines by service type: • Full-service restaurant (good service): 18–20% • Full-service restaurant (excellent service): 22–25% • Counter service / fast casual: 0–10% at your discretion • Delivery (food): 15–20% of order, minimum $3–5 • Bar service: $1–2 per drink, or 15–20% of tab • Buffet: 10% for server who brings drinks • Hotel room service: 18–20% if not already included • Catering (seated dinner): 15–20% split among staff

How do you split a bill and tip evenly between people?

The cleanest method: calculate the total including tip first, then divide by the number of people. Total = Bill x (1 + Tip% / 100). Per person = Total / People. This is what the Split Between control in this calculator does. For example, $85 bill with 18% tip: total = $100.30, split 4 ways = $25.075, rounded to $25.08 per person. Rounding cents is unavoidable — the common convention is to have the person closest to the bill owner cover any remaining cent. Practical bill-splitting approaches: • Even split (this calculator): everyone pays the same — simplest and most common • Itemised split: each person pays for their own items plus a proportional share of tax and tip — use a bill-splitting app • One person pays and gets reimbursed: use Venmo, PayPal, or Google Pay for reimbursements • Round up generously: if split 4 ways comes to $25.08, everyone pays $26 — the extra goes to a larger tip • For groups: ask the server to split the bill before paying — most restaurants can do this automatically

Is the tip calculated on the pre-tax or post-tax amount?

Tip etiquette in the United States calls for tipping on the pre-tax bill amount, not the post-tax total. The server did not provide the government with a service, and tipping on the pre-tax amount is the technically correct approach. In practice, many people tip on the post-tax total because it is faster and the difference is small — on an $85 bill with 8% tax and 20% tip, the difference is only about $1.36. This calculator uses the bill amount you enter as the base — enter your pre-tax bill for the technically correct tip, or your post-tax total for the simplified approach. The practical difference: • Pre-tax bill $85, 20% tip: tip = $17.00 • Post-tax total $91.80 (8% tax), 20% tip: tip = $18.36 • Difference: $1.36 — small but adds up over many meals • Many tip prompt screens on card readers already show post-tax amounts • No one will notice or complain either way — the difference is minor

What does the round-up tip suggestion mean?

The round-up suggestion finds the nearest total that divides evenly among your party — making cash payment or mental maths simpler. For example, a $85 bill with 4 people: the 18% tip gives a total of $100.30, which is $25.075 per person — an awkward number. The round-up suggestion might say: pay $104 total ($26/person) which is a 22.4% tip, or $100 total ($25/person) which is 17.6%. The goal is to find a number that is both round and splits cleanly. When the round-up tip is useful: • Paying in cash with a group — avoids coin change • Quick calculation without a phone • When the service was genuinely good and you want to be generous • When the exact split results in an awkward per-person amount • The round-up tip is never obligatory — it is a convenience suggestion only • You can also manually type a custom tip percentage in the Custom % field to target any specific total

Tip Calculator — Tip Amount, Total & Bill Split

This Tip Calculator computes the tip amount and total for any bill, with one-tap preset buttons for the most common tip percentages (10%, 15%, 18%, 20%, 25%) and a custom percentage field for any other amount. The bill splitter divides the total — including tip — evenly among any number of people, s...

TIP CALCULATOR

Bill Amount

Tip Percentage

Type a custom % to override the preset selection

Split Between

person

TOTAL

$100.30

TIP AMOUNT

$15.30

💡 Round up tip

Pay $85.00 total (0% tip) → tip: $0.00

LIVE DIAGRAM

TOTAL TO PAY (18% TIP)

$100.30

TIP AMOUNT

$15.30

BILL

$85.00

TOTAL BREAKDOWN

BILL

TIP

Bill: $85.00

Tip: $15.30

TOTAL AT EACH TIP LEVEL

10%

$93.50

15%

$97.75

18%

$100.30

20%

$102.00

25%

$106.25

30%

$110.50

Total at each tip level — your selection in black

BILL

$85.00

TIP AMOUNT

$15.30

TOTAL

$100.30

TIP %

18%

Live diagram · updates as you type

Created with❤️byeaglecalculator.com

TIP REFERENCE TABLE — $85.00 BILL

BILL: $85.00 · NO SPLIT

TIP %	TIP AMOUNT	TOTAL	QUALITY
10%	$8.50	$93.50	Basic
15%	$12.75	$97.75	Standard
18% ←	$15.30	$100.30	Good
20%	$17.00	$102.00	Great
25%	$21.25	$106.25	Excellent
30%	$25.50	$110.50	Generous

HOW TO USE

1
Enter your bill amount in the Bill Amount field. Enter the pre-tax total for technically correct tipping, or the post-tax total if you prefer the simpler approach.
2
Select a tip percentage using the preset buttons (10%, 15%, 18%, 20%, 25%) or type any custom percentage in the Custom % field.
3
Use the + and − buttons to set the number of people splitting the bill. The per-person total, tip, and bill share update instantly.
4
Check the round-up suggestion for the nearest clean total that divides evenly among your group — useful for cash payments.
5
Review the tip reference table to see the total at every standard tip level — your current selection is highlighted in blue.

WORKED EXAMPLE

Example: Bill $85, 18% tip. Tip = $85 x 0.18 = $15.30. Total = $100.30. Split 4 ways: per person total = $25.08, per person tip = $3.83, per person bill = $21.25. At 20% tip: tip = $17.00, total = $102.00, per person = $25.50. Round-up suggestion: pay $104 total (4 x $26) for a 22.4% tip with no awkward change.

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Last updated: April 25, 2026 · Formula verified by EagleCalculator team · Eagle-eyed accuracy for every calculation.