What You Can Calculate Here

AnyPercent is a free, all-in-one percentage calculator suite designed for students, shoppers, professionals, and anyone who works with numbers. Instead of searching for separate tools, you get every common percentage workflow in a single interface with instant results as you type.

Need a quick answer to "What is 15% of 200?" Head to the percent of number calculator. Curious about natural-language questions like "20 is what percent of 80"? The common-phrases calculator parses these patterns automatically. Tracking how revenue shifted from one quarter to the next? The percentage change calculator shows the result with a step-by-step breakdown.

Planning a purchase? Use the discount calculator to find the sale price or reverse-engineer the original price from a discounted tag. Splitting a restaurant bill? The tip calculator figures out each person's share in seconds. And if you need to project savings or losses over multiple periods, the compound percentage calculator handles growth and decline scenarios. Every calculator shows the formula it used, so you can verify or reuse the math wherever you need it.

Core Percentage Logic Made Simple

At its heart, a percentage is a way to express a number as a fraction of 100. The basic formula is:

P = PartWhole × 100

AnyPercent applies this principle across every calculator while showing you the specific formula and each step of the calculation. Whether you are solving for the part, the whole, or the percentage itself, the result comes with a human-readable explanation so you always understand how the answer was reached.

Every calculation also displays the general formula alongside the solved version with your specific numbers substituted in. This approach helps you verify the math and apply the same formula in other contexts—whether on paper, in a spreadsheet, or in another tool.

If you are new to percentages or want a refresher, read our guide on the easy way to calculate percentages. It walks through the core formula, common variations, and practical shortcuts you can use without a calculator.

Quick Outcomes for Real Scenarios

Percentages show up everywhere—from shopping receipts to salary reviews. Here are a few scenarios AnyPercent handles instantly:

Discounts and sales tax: Enter the original price and discount rate to see the final price. Stack a tax rate on top and the calculator shows the combined total. Learn more in our article on shopping math for discounts and sales tax.
Tips and bill splitting: Choose a tip percentage, enter the bill amount and the number of people, and get a fair per-person share. Check out the tipping guide for 2026 for etiquette benchmarks.
Percentage increase and decrease: See how much a value has grown or shrunk over time. The percentage change formula is:

Percentage Change = ((New − Old) ÷ Old) × 100

Explore step-by-step examples in our article on how to calculate percentage increase and decrease.

Learn More and Next Steps

AnyPercent is more than a calculator—it is also a learning resource. Browse our percentage guides and explainers for tutorials on percentage change, discount math, tipping etiquette, compound growth, and common mistakes to avoid. Each article links back to the relevant calculator so you can put the concepts into practice immediately.

Want to know more about the project? Visit the about page to see how AnyPercent works, including how calculations run entirely in your browser with no data sent to a server. Your inputs are never stored or transmitted.

AnyPercent is available in 12 languages with locale-aware number formatting, completely free, and requires no sign-up. Pick a calculator above and get your answer in seconds.

Built-In Percent Basics: Phrase Questions and % of Number

The home calculator includes both core percentage-basics workflows: common phrase questions and percent of number. You can solve all three phrase patterns in one place:

What is X% of Y? Formula: Result = (X ÷ 100) × Y
X is what percent of Y? Formula: Percent = (X ÷ Y) × 100
X is Y% of what? Formula: Original = X ÷ (Y ÷ 100)

Use the home page tabs to switch quickly between phrase-style and direct % workflows without leaving the page. For deeper walkthroughs, read how to calculate percent of a number, what is a percentage, and converting fractions to percentages fast.

Excel Formulas for Phrase Questions

Each of the three phrase question types has a direct Excel or Google Sheets equivalent you can copy into a cell:

What is X% of Y? =X/100*Y or =X%*Y — Example: =15/100*200 returns 30.
X is what percent of Y? =(X/Y)*100 or enter =X/Y and format the cell as percentage — Example: =(125/500)*100 returns 25.
X is Y% of what? =X/(Y/100) — Example: =1200/(15/100) returns 8000.

For repeatable workflows, replace the numbers with cell references such as =A1/100*B1. Copy the formula down to process an entire column at once. More patterns and tips are available in our guide to percentages in Excel and Google Sheets.