How much should I tip?

In the US, 15-20% is standard for restaurants. 15% for adequate service, 18-20% for good service, and 25%+ for exceptional service. Tipping customs vary by country.

How do I quickly calculate a 15% tip?

Find 10% by moving the decimal point left, then add half of that. For a $60 bill: 10% = $6, half = $3, so 15% = $9.

Should I tip on the pre-tax or post-tax amount?

Etiquette experts generally say either is acceptable. Tipping on the pre-tax amount is technically more correct, but many people tip on the total for simplicity.

How do I split a tip between multiple people?

Calculate the total tip, then divide by the number of people. For a $9 tip split 3 ways: $9 ÷ 3 = $3 per person.

Tip Calculator

Calculate the tip amount and total bill instantly.

Bill Amount

Tip (%)

Result

$69

Tip: $9

Total: $69

0%100%

Step-by-step

1Calculate the tip:60 × 15% = 9

2Add to the bill:60 + 9 = 69

Instant answer

How much is an 18% tip on a $50 bill?

An 18% tip on 50 is 9, for a total of 59.

An 18% tip on 50 is 9, giving a total of 59. A tip is simply a percentage of the pre-tip bill.

Formula: Tip = (Tip% ÷ 100) × Bill · Total = Bill + Tip
Definition: A tip is a voluntary percentage of the bill added for service; the total is the bill plus the tip amount.

Convert to decimal:18% = 18 ÷ 100 = 0.18
Multiply:0.18 × 50 = 9
Add to the bill:50 + 9 = 59

How to use

1Enter the bill amount — The pre-tip total of your bill.
2Enter tip percentage — How much you want to tip (e.g. 15%).
3See the total — Tip amount and total bill are calculated instantly.

Tab to move between fields · Results update instantly as you typeResults update instantly as you type

How to Calculate a Tip

Tipping customs vary by country, venue and service. The rates below are illustrative choices, not rules or required amounts. Check whether a service charge is already included before adding a tip. This calculator applies the rate you enter and shows the tip and total, rounding only for display when needed.

The Formula: Tip Amount = Bill × (Tip% ÷ 100)

Tipping Scenarios

Restaurant dinner: A $95 dinner with 20% tip: $95 × 0.20 = $19.00 tip, total $114.00.
Coffee shop: A $6.50 latte with a 15% tip: $0.98 — round up to $1.00 for convenience.
Taxi ride: A $32 fare with 18% tip: $5.76 tip, making the total $37.76.
Hair salon: A $120 service with 20% tip: $24.00 — a standard show of appreciation for personal services.

Quick Mental Math Trick

To estimate a 15% tip mentally: find 10% (move the decimal one place left), then add half of that. For a $60 bill: 10% = $6, half of that = $3, so 15% ≈ $9. For 20%, just double the 10% figure — $12 on a $60 bill. This calculator removes the guesswork entirely.

Tipping is simply “X% of a number”, so the same method covers sales tax, service charges and commissions. For any other percentage job, our Percentage Calculator handles it, and mental math for percentages shows more shortcuts like the 10%-plus-half trick above.

Common Tip Amounts

Common tip percentages on typical bill sizes. Click any row to pre-fill the calculator.

Tip on bill	Math	Tip / Total
15% on $20	$20 × 0.15	$3.00 / $23.00	Open
18% on $30	$30 × 0.18	$5.40 / $35.40	Open
20% on $50	$50 × 0.20	$10.00 / $60.00	Open
15% on $60	$60 × 0.15	$9.00 / $69.00	Open
18% on $75	$75 × 0.18	$13.50 / $88.50	Open
20% on $100	$100 × 0.20	$20.00 / $120.00	Open
22% on $120	$120 × 0.22	$26.40 / $146.40	Open
25% on $200	$200 × 0.25	$50.00 / $250.00	Open

Tips — worked examples

Tips — worked examples
Question	Calculation	Answer	Open
10% tip on 40	40 + ((10 ÷ 100) × 40)	44	Prefilled
15% tip on 50	50 + ((15 ÷ 100) × 50)	57.5	Prefilled
18% tip on 50	50 + ((18 ÷ 100) × 50)	59	Prefilled
18% tip on 85	85 + ((18 ÷ 100) × 85)	100.3	Prefilled
20% tip on 60	60 + ((20 ÷ 100) × 60)	72	Prefilled
20% tip on 100	100 + ((20 ÷ 100) × 100)	120	Prefilled
25% tip on 120	120 + ((25 ÷ 100) × 120)	150	Prefilled

Every figure above is produced by the same calculation engine that powers the calculator on this page.

Calculation method and limitations

Method: The tip percentage is applied to the bill amount and added to it. The calculator shows the tip and total; it does not split the bill.

Limitations

Tipping norms differ by country and venue; the tool does no local convention lookup.
Whether to tip on the pre-tax or post-tax bill is a convention choice, not arithmetic.
Service charges already on the bill are not detected or deducted.

Method and examples last reviewed August 6, 2026 by the Snap Percent Calc editorial team. All calculations run locally in your browser.

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