# Split Check

> A simple bill splitter and tip calculator. Split evenly or by person, add tax and tip, and see exactly what everyone owes.

Free bill splitter and tip calculator. Enter the bill, pick a tip, choose how many people — Split Check does the math, including tax and fair leftover cents.

The calculator runs entirely in the browser. Bill amounts are not sent to a server. Sign-in is optional and is not required to split a check.

## Pages

- [Home](https://01a01cba-3a64-7352-8553-f97863dd2eec-8nvzfo58o-xai-org.vercel.app/): Interactive bill splitter and tip calculator. Enter the bill, choose a tip percent (or a custom amount), set the number of people, and see each person’s share. Optional tax, pre-tax vs post-tax tipping, named people, custom amounts, and round-up.
- [How it works](https://01a01cba-3a64-7352-8553-f97863dd2eec-8nvzfo58o-xai-org.vercel.app/how-it-works): Plain-language explanation of tip math, tax, leftover cents, uneven splits, rounding, and privacy.
- [Sign in](https://01a01cba-3a64-7352-8553-f97863dd2eec-8nvzfo58o-xai-org.vercel.app/login): Optional Google or X sign-in.

## Tools for crawlers

- [robots.txt](https://01a01cba-3a64-7352-8553-f97863dd2eec-8nvzfo58o-xai-org.vercel.app/robots.txt)
- [sitemap.xml](https://01a01cba-3a64-7352-8553-f97863dd2eec-8nvzfo58o-xai-org.vercel.app/sitemap.xml)
- [llms.txt](https://01a01cba-3a64-7352-8553-f97863dd2eec-8nvzfo58o-xai-org.vercel.app/llms.txt)

## How the math works

1. Bill (subtotal) is the starting amount.
2. Optional tax is a percent of the bill, or a dollar amount from the receipt.
3. Tip is a percent of the bill before tax by default (US custom), or of bill + tax if that toggle is off. A custom dollar tip is also supported.
4. Grand total = bill + tax + tip.
5. Even split: the total is converted to the currency’s smallest unit (cents), divided by the number of people, and leftover units go to the first people so shares still sum to the total.
6. Custom amounts: named people can be assigned a specific total; everyone left on Auto splits the remainder.

## Optional

- Contact: use the in-app calculator; there is no account required for the core product.