Tip Calculator

How Much Should You Tip?

This calculator handles the arithmetic — enter a bill, pick a percentage, split it across any group. The one input it can't choose for you is the percentage itself, so here is the short version: in the US, 15% is the floor for adequate full-service service, 18% for good, and 20%+ for excellent. Servers are typically paid a tipped minimum wage (as low as $2.13/hour federally), with tips making up the difference.

Decision insight: the standard range is narrower than people think, and the percentage matters less than consistency — dropping below 15% for full-service restaurants is generally considered poor form even when service was imperfect. For the full picture, we cover how much to tip for every service type (delivery, salons, travel, 10+ countries) in our guide, and the tipping etiquette quiz gives you a situation-specific recommendation in about a minute.

The Math Behind Tipping

The formulas are straightforward, but being able to calculate tips mentally saves time and prevents the awkward phone-calculator moment at the table.

Tip = Bill Amount × (Tip Percentage ÷ 100)

Total = Bill Amount + Tip

Per Person = Total ÷ Number of People

For quick mental math, use the "move the decimal" trick: to find 10%, move the decimal point one place to the left ($85.00 becomes $8.50). For 20%, double that ($8.50 × 2 = $17.00). For 15%, take 10% plus half of 10% ($8.50 + $4.25 = $12.75). This works for any bill amount and lets you calculate tips without reaching for your phone.

Splitting the Bill: Strategies That Work

Splitting the bill is one of the most common social friction points when dining in groups. The right approach depends on the group size, how evenly the orders were distributed, and the group's social dynamics. Here are the three main strategies:

• Equal split (total ÷ number of people): The simplest method and what this calculator handles automatically. Best when everyone ordered similarly priced items. This avoids item-by-item negotiation and keeps things moving.
• Itemized split (each person pays for their own): Each person pays for what they ordered plus their proportional share of the tip. More fair when orders vary widely — say, when one person had a $15 salad and another had a $45 steak. Requires more calculation but prevents resentment.
• One person pays, others reimburse: One person puts the card down and others send their share via Venmo, Zelle, or cash. This is increasingly common and avoids the restaurant running 8 separate cards. Use this calculator to determine exactly what each person owes before sending payment requests.

Decision insight:If you ordered significantly more or less than the group average, offer to pay your actual share rather than splitting equally. This small gesture is noticed and appreciated, and it means nobody subsidizes someone else's expensive order. Conversely, if the group agrees to split equally, do not be the person who argues over a $3 difference — the social cost is not worth it.

Common Tipping Mistakes

1. Not checking for automatic gratuity. Parties of 6 or more often have an 18% gratuity automatically added to the bill. Always check your receipt before adding more — double-tipping is an expensive mistake.
2. Tipping on the tax. Most etiquette experts agree that tipping should be calculated on the pre-tax subtotal. The difference is small (roughly $1.50 on a $100 meal with 8% tax), but it adds up over time.
3. Leaving a cash tip on a credit card payment without telling the server.If you write "cash" on the tip line, make sure you actually leave the cash on the table. Servers have been burned by customers who write "cash tip" and then forget.

Frequently Asked Questions

How do I calculate a tip without a calculator?

Use the decimal trick: for 10%, move the decimal point one place left ($47.00 becomes $4.70). For 20%, double that ($9.40). For 15%, add half of the 10% amount ($4.70 + $2.35 = $7.05). For 18%, take 20% and subtract 10% of that number. This calculator handles any percentage and splits the result across your group automatically.

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

Convention is to tip on the pre-tax subtotal, but the difference is small — on a $100 bill with 8% tax, tipping 20% pre-tax vs. post-tax differs by about $1.60. Most people just tip on the total for simplicity. If you want to calculate on the pre-tax amount, enter the subtotal (before tax) as the bill amount above.

How do I split the bill and tip evenly?

Enter the full bill amount, pick your tip percentage, then set 'Split Between' to the number of people. The calculator shows the total per person and the tip portion per person separately. If everyone ordered very different amounts, split evenly only on the tip and settle food costs separately — or have each person run their own order through the calculator.

How much does the tip percentage actually change the total?

Less than most people expect on small bills, more than they expect on large ones. On a $40 bill, the gap between 15% and 20% is $2.00. On a $200 group dinner, the same gap is $10.00 — and on a $150 tab, choosing 25% over 15% adds $15. Use the slider above to see exactly how each percentage moves your total before you commit.

What tip percentage should I choose?

In the US, 15% is the floor for adequate full-service dining, 18-20% is standard for good service, and 20%+ rewards great service. But the right number depends on the situation — service quality, dining type, and country all matter. If you're unsure for your specific case, our tipping etiquette quiz gives a recommendation in about a minute.