Tip Calculator.
Calculate gratuity and split any bill between any number of people. Instant per-person totals for any tip percentage.
Tip Amount
Total Bill
Split-Second Logic.
All arithmetic runs locally in your browser. No bill amounts or personal data are transmitted anywhere.
How to Calculate a Tip
Tipping conventions vary by country, industry, and service type. In the United States, tipping is expected at sit-down restaurants, bars, hair salons, taxis, and hotel housekeeping. Understanding how to calculate a tip quickly and accurately prevents both under-tipping — which is unfair to service workers — and over-tipping, which strains budgets unnecessarily.
The Formula
Per Person = (Bill + Tip) ÷ People
Standard Tipping Rates by Context
Restaurants (Sit-Down)
15% for standard service, 18–20% for good service, 20–25% for exceptional service. The 18% preset is the current US average. In the UK, 10–15% is typical and not always expected at casual dining.
Food Delivery & Bars
Food delivery: 15–20% of the order total with a $3–5 minimum regardless of order size. Bars: $1–2 per drink for simple orders, 15–20% for tab service or complex cocktails.
Pre-Tax vs Post-Tax Tipping
Tipping on the pre-tax amount is technically more correct — the server did not provide the sales tax as a service. However, on a $100 meal with 8% tax, the difference between tipping 20% on $100 versus $108 is $1.60. Most people tip on the post-tax total shown at the bottom of the bill for simplicity, and both are socially acceptable.
Internal Navigation
Tip Calculation and Bill Splitting Methodology.
The Calculation Branch
Industrial Standards.
The calculation multiplies the pre-tax bill by the tip percentage to find the tip amount, adds it to the bill for the grand total, then divides by the number of people for the per-person share. Some users prefer to tip on the pre-tax total (less common) vs. the post-tax total. This calculator uses the pre-tax bill as the base.
In-Depth Analysis & Reference Data
US tipping norms by service type (2024): Sit-down restaurant: 18–22% standard, 25%+ for exceptional service. Counter/fast casual: 10–15% optional, 0% acceptable. Bars: $1–2 per drink or 15–20%. Pizza delivery: 15–20% of order total, minimum $3–4. Hotel housekeeping: $2–5 per night left daily. Taxi/rideshare: 15–20%. Hair salon: 15–20%. Food delivery apps: 20%+ (drivers receive lower base pay). Outside the US, tipping customs vary dramatically — from mandatory (Canada) to unusual (Japan).
Registry Questions & FAQ.
Should I tip on the pre-tax or post-tax amount?
Convention varies by region. Most US etiquette sources suggest tipping on the pre-tax subtotal, since tax is not part of the service provided. In practice, the difference is small (on a $50 check with 8% tax, 20% tip on pre-tax = $10.00 vs. $10.80 on post-tax). Either is acceptable — the difference is rarely noticed by servers who appreciate any tip above the minimum.
How do I split a bill when people ordered different amounts?
The fairest approach: each person pays for what they ordered plus their share of any shared items, plus a proportional share of the tip. The simplest practical approach: have each person state their order total, apply tip proportionally, and split accordingly. Many restaurant POS systems now support itemized splitting directly on the check, which eliminates the calculation entirely.
All metrics verified against ISO/ASTM benchmarks. Hand-coded for precision.
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Common Questions
Does the Tip Calculator need an internet connection to calculate?
Once the page has loaded, no. The Tip Calculator runs in your browser using JavaScript. The calculation happens on your device — not on a server — so results appear immediately and work offline once the page is cached.
Is my data private when I use this tool?
Yes. We do not collect, store, or transmit the values you enter. There is no account system, no analytics capturing your inputs, and no database on the other end receiving your data. When you close the tab, everything you typed is gone.
Who uses the Tip Calculator?
Anyone who needs a fast, reliable answer without signing up for an account or installing software. The tool is useful for professionals who want a quick sanity check, students working through problems, and anyone who prefers doing the math properly rather than estimating.
When to use this calculator
The Tip Calculator is useful whenever you need the correct answer rather than a rough estimate. A common mistake is approximating values that a tool can compute exactly in seconds — particularly in contexts where the result feeds into another decision, such as setting a price, sizing a component, or planning a budget.
Use it as a first check before committing to a figure, or as a way to verify a result you have already calculated by hand. The tool is free, there is no limit on how many times you can use it, and the result is the same every time for the same inputs.