What You Can Calculate Here

AnyPercent is a free, all-in-one percentage calculator suite. Instead of hunting for separate tools, you get every common percentage workflow in one interface, with results updating as you type.

For a quick answer to "What is 15% of 200?", use the percent of number calculator. The common-phrases calculator parses natural-language questions like "20 is what percent of 80" on its own. And the percentage change calculator shows how a value moved between two points, say revenue from one quarter to the next, with a step-by-step breakdown.

The discount calculator finds a sale price, or works backward from a discounted tag to the original price. The tip calculator splits a restaurant bill and gives each person's share. For savings or losses that run over multiple periods, the compound percentage calculator covers both growth and decline. Every calculator shows the formula it used, so you can check the math or reuse it elsewhere.

Core Percentage Logic Made Simple

A percentage expresses a number as a fraction of 100. The basic formula is:

P = PartWhole × 100

Every AnyPercent calculator applies this principle and shows its work. Solve for the part, the whole, or the percentage itself, and the result comes with the general formula plus a solved version with your numbers substituted in. That makes it easy to check the answer and carry the same formula into a spreadsheet or onto paper.

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 run through shopping receipts, salary reviews, and restaurant bills. 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. See the tipping guide 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

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 try the math right away.

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.