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Everyday & Lifestyle
Tip Calculator — Tip Amount, Total & Split the Bill
The quick math behind restaurant tips, splitting the check and rounding up
Tipping is one of those uniquely American rituals that turns a relaxed dinner into a quick math problem at the worst possible moment — right after a big meal, with friends watching. This calculator does the arithmetic for you: enter the bill amount in dollars, choose a tip percentage, say how many people are splitting it, and you instantly get the tip, the total, and exactly what each person owes.
The math itself is simple. Tip = bill × (tip % ÷ 100). Then total = bill + tip, and per person = total ÷ number of people.
Here's a fully worked example. Your dinner bill is $80.00, you want to leave a 20% tip, and 4 people are splitting it evenly:
- Tip = 80 × (20 ÷ 100) = 80 × 0.20 = $16.00
- Total = 80 + 16 = $96.00
- Per person = 96 ÷ 4 = $24.00 each
In the United States, tipping at sit-down restaurants is expected, not optional. The everyday range is 15% for okay service, 18% as a solid default, 20% for good service, and 25% for service that wowed you. Many people now tip 20% as the standard. Bartenders typically get $1–$2 per drink or 15–20% of the tab, and counter-service tip jars are entirely up to you.
The most common mistake is tipping on the wrong number. In the US you tip on the pre-tax subtotal, not the after-tax total — though plenty of people just tip on the full bill for simplicity, and that's fine since it only adds a few cents. The bigger trap is letting the suggested tip lines on the receipt fool you: those printed "suggested" amounts are often calculated on the post-tax total, which quietly bumps your tip a percent or two higher than you intended.
The other classic slip-up happens when splitting: dividing the bill by the number of people and then adding tip per person separately, instead of adding the tip first and dividing the total. Both reach the same answer if you do every step, but it's easy to drop a step under pressure. This tool also offers an optional round-up, which bumps the per-person amount up to the nearest dollar so nobody is fishing for quarters — a small, generous habit that makes splitting painless.
📖 See also: How to Calculate a Tip (and Split the Bill)
Calculator
Fill in the fields and click "Calculate" for instant results.
📰 Formula
• Tip = bill × (tip % / 100) • Total = bill + tip • Per person = total / number of people • Tip per person = tip / number of people • Round-up (optional): per person rounded up to the nearest $1
📰 Formula
• Tip = bill × (tip % / 100) • Total = bill + tip • Per person = total / number of people • Tip per person = tip / number of people • Round-up (optional): per person rounded up to the nearest $1
🧪 Worked examples
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Example 2
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Example 3
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Example 4
⚠️ Common mistakes
- Tipping on the after-tax total instead of the pre-tax subtotal.
- Trusting the receipt's 'suggested' tip lines, which are often figured on the taxed total.
- Splitting the bill before adding the tip, instead of splitting the total.
- Forgetting to divide by 100 — multiplying the bill by 20 instead of 0.20.
💡 Tips
- 20% is the easy American default: take 10% (move the decimal one place left) and double it.
- For a fast estimate, round the bill to a whole dollar before you tip — the few cents won't matter.
- Use round-up when splitting so each person pays a clean dollar amount and no one is short.
Embed this calculator on your site
Copy the code below and paste it into the HTML of your site or blog.
<iframe src="https://www.calcnimbus.com/embed/tip-calculator" width="100%" height="500" frameborder="0" style="border:1px solid #eee;border-radius:12px"></iframe>
❓ Frequently asked questions
How much should I tip at a restaurant?
In the US, 15% is the low end, 18% is a solid default, and 20% is standard for good service. For excellent service, many people leave 25%.
How do I calculate a 20% tip?
Multiply the bill by 0.20. A shortcut: take 10% of the bill (move the decimal one place left) and double it. On $60, that's $6 doubled = $12.
How do I split the bill and tip evenly?
Add the tip to the bill first, then divide the total by the number of people. A $96 total split 4 ways is $24 each.
Do I tip on the pre-tax or post-tax amount?
Etiquette says tip on the pre-tax subtotal. Many people tip on the full bill for simplicity, which only adds a few cents. The receipt's suggested lines are often figured on the taxed total.
Is 15% still an acceptable tip?
15% is acceptable for adequate service, but 18–20% has become the everyday expectation at US sit-down restaurants. Leave more for great service, less only for genuinely poor service.
How much do I tip a bartender?
Tip about $1–$2 per drink, or 15–20% of the total tab if you're running a bar tab. A dollar a beer is the common rule of thumb.
Should I tip on delivery and takeout?
For food delivery, tip 15–20% (or at least $3–$5). Takeout you pick up yourself is optional — many people tip 10% or round up, but it isn't expected.
How do I figure the tip in my head?
Find 10% by moving the decimal one place left. Double it for 20%, or add half of the 10% for 15%. On a $40 bill, 10% is $4, so 20% is $8 and 15% is $6.
What does the round-up option do?
It rounds each person's share up to the nearest whole dollar so no one has to deal with change. The extra few cents simply go toward a slightly larger tip.