Finance
Split Bill Calculator
Split any bill evenly between friends including tip. Enter the bill amount, number of people, and tip percentage to see exactly what each person owes — plus the total tip and grand total.
Quick tip select
Round up each person's share to nearest cent
US Restaurant Tipping Guide
Poor / No service0–10%
Average service15%
Good service18–20%
Excellent service20–25%
Exceptional / fine dining25%+
Tip on the pre-tax subtotal. Tipping customs vary by country — these guidelines apply to the United States.
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Frequently Asked Questions
How do you split a bill with tip?
Add the tip to the subtotal first, then divide by the number of people. Formula: Each person pays = (Bill + Tip) ÷ Number of people. Example: $120 bill, 20% tip, 4 people. Tip = $24. Total = $144. Each person pays $144 ÷ 4 = $36. This calculator does it instantly for any combination.
Should you split the bill before or after adding tip?
Always calculate tip on the pre-tax subtotal, then split the full amount (subtotal + tip, and tax if applicable) equally. Never split first and tip on your individual share — this leads to under-tipping. Example: $100 subtotal, 20% tip = $20 tip. Total = $120. Split 4 ways = $30 each. Each person contributes $5 toward the tip.
What is an appropriate tip percentage at a restaurant?
In the US, standard restaurant tipping is 15–20% for sit-down service. 18% is widely considered the minimum for adequate service. 20% is easy to calculate (move the decimal, double it) and is the current common standard. 25% or more is appropriate for exceptional service or fine dining. Tip on the pre-tax subtotal, not the tax-inclusive total.
How do you split a bill unequally?
For unequal splits (someone ordered more, someone didn't drink, etc.), the most common approaches are: itemized splitting (each person pays for exactly what they ordered including their share of any shared items), ratio splitting (split proportionally by what each person spent), or designating one person to pay and collect from others via Venmo/Zelle/Cash App. This calculator handles equal splits — for unequal splits, use the itemized approach.
How much is 20% tip on common bill amounts?
Quick 20% tip reference: $20 bill → $4 tip ($24 total). $30 → $6 tip ($36 total). $50 → $10 tip ($60 total). $80 → $16 tip ($96 total). $100 → $20 tip ($120 total). $150 → $30 tip ($180 total). Mental math trick: move the decimal point one place left to get 10%, then double it for 20%.
What is the etiquette for splitting a bill?
Common approaches: equal split (everyone pays the same — simplest and avoids awkwardness), itemized (each pays for what they ordered — fairest but slowest), one person pays and gets reimbursed via app (convenient for large groups). In the US, it's normal to ask the server to split the check before ordering. Most restaurants can split between 2–6 cards. Always tip on the original subtotal, not after discounts or coupons.
Do you tip on tax?
Technically, the standard practice is to tip on the pre-tax subtotal — that's what you're rewarding the server for. However, in practice, most people tip on the total including tax, which slightly increases the tip (by about 8–10% of the tip amount in most US states). Either is acceptable. Using this calculator with the subtotal (before tax) gives the most accurate tip amount.