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Tip Calculator

A tip calculator that recalculates live on every keystroke, splits by party size, and lets you share the exact result as a URL.

Lovable
·0 remixes

Designed for

  • Founders adding financial tools to their brand
  • Tracking tips and splits across group meals
  • Marketing a restaurant or hospitality site
  • Building utility widgets for content campaigns

Key highlights

  • Live recalculation
  • Bill splitting stepper
  • What-if comparison table
  • Shareable URL results
  • Round-up toggle
  • Tipping etiquette reference

Technology stack

Libraries

  • shadcn/ui
  • DnD Kit
  • TanStack
  • Rive
  • React Flow
  • Recharts
  • Framer Motion

Deployment

  • Lovable
  • GitHub

About this template

This template gives you a tip calculator that looks clean and works the moment the page loads. No sign-up, no app store download, no fumbling with clunky forms while your friends wait at the table.

The technical parts are already handled. Live recalculation on every keystroke, cent-accurate arithmetic that avoids floating-point rounding errors, URL-based sharing so anyone can see your exact numbers.

What's included: a bill amount input with both keypad and typed entry modes, five quick-pick tip percentage chips (10%, 15%, 18%, 20%, 25%) plus a custom percentage field, a party size stepper with round-up-per-person toggle, hero-sized result numbers showing tip and total (plus per-person breakdowns when splitting), a ten-row what-if comparison table, and a twelve-row tipping etiquette reference covering restaurants, delivery, hotels, salons, rideshare, and more. Every calculation encodes into the URL, so sharing a link gives the recipient the exact same screen.

Most tip calculator apps are either buried behind ads or require you to tap a "Calculate" button after every change. This one recalculates as you type and looks good enough to hold up at the table.

Quick calculation at a restaurant

You're at dinner and the check arrives. Type the bill amount, tap a tip percentage, and the answer appears before you finish your sentence. No button to press, no page to reload. The what-if table lets you compare 10 different tip levels side by side so the group can pick one that feels right.

Splitting a group meal

Set the party size and each person's share updates instantly. Turn on round-up to bump everyone's total to a clean dollar amount, and the surplus line tells you exactly how much extra tip that adds. No mental math, no arguments over pennies.

Sharing the math with someone who wasn't there

Tap Share and the current calculation is copied as a URL. Text it to the friend who left early or the roommate covering their portion. They open the link and see the identical numbers. No account needed on either end.

Reference check before tipping a service provider

Scroll down to the etiquette reference table before your next haircut, massage, or hotel stay. Twelve service categories with standard US and Canadian tipping ranges give you a quick sanity check without opening a separate browser tab.

Getting Started

1. Remix This Template

Open this template in Lovable and remix it into your own project. The calculator renders immediately with seed defaults ($55 bill, 15% tip, 1 person) so you can see every element working before you change anything. If this template isn't the right fit, you can remix a different one.

2. Customize Your Brand

Swap the color tint to match your brand. The template ships with a plum gradient, but you can switch to azure, teal, crimson, indigo, or green by changing one prop. Update the wordmark text in the sticky header to your own product name. The frosted glass panels, white-on-gradient typography, and rounded corners adapt automatically to whatever tint you choose.

3. Add Your Content

Edit the default tip percentages in the quick-pick chips if your audience prefers different options (some regions favor 12% or 22%). Update the twelve-row etiquette reference table with tipping norms for your market. Adjust the seed default bill amount to something typical for your users. All content lives in a single seed data file, so changes are fast.

4. Connect Your Tools

This is a fully client-side tool with no backend, but you can extend it. Add an analytics snippet to track usage. Embed the calculator inside an existing site using an iframe or by dropping the route into a larger React app. Wire up a currency selector if you serve international users. The pure TypeScript compute module in src/lib/tip.ts is designed to be extended without touching the UI layer.

5. Go Live

Publish directly from Lovable. Your tip calculator gets a live URL you can share on social media, embed in a blog post, or link from a restaurant's website. The entire app is static, so it loads fast on any device. Test it on your phone first. The keypad, stepper, and tap-to-adopt table rows are all sized for thumb interaction.

Conclusion

This tip calculator template works for founders, operators, and marketers who want a branded financial tool live in hours. You get live recalculation without building real-time state management, bill splitting without backend complexity, and shareable results without user accounts.

Remix this template today and have a working tip calculator published before lunch. Start with the defaults, customize the brand and content, and share the link. Your users get the answer before they finish typing the bill amount.

Features & capabilities

  • Keystroke-level recalculation

    Every output updates the instant you type. No submit button, no page reload. Results appear as fast as you can enter digits.

  • Quick-pick tip chips

    Tap 10%, 15%, 18%, 20%, or 25% to set the tip instantly. A custom field lets you type any percentage you prefer.

  • Party size stepper

    Increment or decrement the number of people splitting the bill. Per-person tip and total figures update live with each tap.

  • Round-up per person

    Toggle rounding so each person's share hits a clean dollar amount. A surplus line shows exactly how much extra tip the rounding adds.

  • What-if comparison table

    Ten rows show tip amounts at different percentages against your current bill. Tap any row to adopt that percentage and recalculate everything.

  • URL-based sharing

    Every input is encoded in the URL. Tap Share, send the link, and the recipient sees the identical calculation with no account required.

  • Etiquette reference table

    Twelve service categories with standard US and Canadian tipping ranges give users a quick lookup without leaving the calculator.

  • Dual entry modes

    Switch between a tap keypad for phone use and a typed input for desktop. Both modes feed the same live calculation engine.

  • Seed defaults on load

    The page renders a complete calculation on first visit. No blank state, no onboarding prompt. Users see a working example immediately.