Tip Calculator

Calculate the perfect tip, split the bill with friends, and know exactly what everyone owes.

About Tip Calculator

This free tip calculator takes the guesswork out of tipping. Choose from preset percentages or enter a custom amount, split the bill among any number of people, and see exactly what each person owes. Perfect for restaurants, bars, food delivery, or any service where you want to leave the right gratuity.

Quick Preset Percentages

Tap 10%, 15%, 18%, 20%, or 25% to instantly set your tip rate — or enter a custom amount.

Split Between People

Divide the bill evenly among any number of people and see each person's share including tip.

Custom Tip Amount

Not a fan of percentages? Enter any tip percentage you like for full control.

Perfect for Dining

Whether dining solo or splitting with a group, know exactly what to pay in seconds.

📋 Common Use Cases

Shopping & Discounts

Calculate sale prices, percentage discounts, and tip amounts instantly. Know exactly what you will pay before reaching the register.

Cooking & Recipe Scaling

Adjust recipe ingredient quantities using ratios and proportions. Scale recipes up for parties or down for smaller meals with perfect accuracy.

Academic Homework Help

Students can check their work and understand step-by-step solutions for fractions, percentages, and ratio problems across math and science courses.

Quick Business Math

Calculate markups, discounts, and proportional adjustments. Make fast, accurate pricing decisions without reaching for a physical calculator.

🪜 How to Use This Tool

  1. Enter your numbers
    Type the values you want to calculate. Most calculators accept whole numbers, decimals, and fractions in standard notation.
  2. Select the operation or mode
    Choose what you want to compute — percentage of a number, fraction arithmetic, or ratio simplification — depending on the calculator.
  3. See the result with explanation
    The answer appears instantly. Most math calculators show step-by-step work so you understand how the result was derived.
  4. Copy or reuse the result
    Click to copy the answer for use in homework, shopping decisions, or business calculations.

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Frequently Asked Questions

Are these calculators really free?▼
Yes. All calculators on iluv.tools are completely free. No signup, no account, no credit card required. Every calculation runs instantly in your browser.
Is my data sent anywhere?▼
Absolutely not. All calculators are pure client-side JavaScript. Your numbers, dates, and inputs never leave your browser. No server processing, no tracking.
How accurate are these calculators?▼
Calculators use standard mathematical formulas with double-precision floating point. Results match industry-standard financial and scientific calculations.
Can I use calculators on mobile?▼
Yes. All calculators work on mobile browsers (iOS Safari, Android Chrome) with responsive layouts.