Math & Retail Calculators

Percentages, discounts, and profit margins — the everyday math that comes up when you're pricing a product, running a sale, or checking your business's numbers.

Percentage Calculator

Instantly calculate what X percent of Y is.

Try Tool

Percentage Increase

Find the exact percentage growth between two numbers.

Try Tool

Percentage Decrease

Find the exact percentage reduction between two numbers.

Try Tool

Discount Calculator

Find out exactly how much you'll pay after a percentage discount.

Try Tool

Profit Calculator

Enter your cost and revenue to instantly calculate your gross profit.

Try Tool

Margin Calculator

Calculate your exact profit margin percentage.

Try Tool

Markup Calculator

Calculate the exact markup percentage applied to your wholesale cost.

Try Tool

Commission Calculator

Find out exactly how much commission you've earned on a sale.

Try Tool

ROI Calculator

Instantly calculate the Return on Investment (ROI).

Try Tool

Sales Tax Calculator

Instantly add or extract US local and state sales tax from any price.

Try Tool

Everyday Percentages

The Percentage, Percentage Increase, and Percentage Decrease calculators handle the basic math, while the Discount and Sales Tax calculators apply that math directly to a price you're paying or charging.

For Retail & Business

If you're pricing products, the Profit, Margin, and Markup calculators each answer a slightly different question about the relationship between your cost and your price — it's worth using the right one for what you're actually trying to find. The Commission and ROI calculators round out the set for sales and investment-return math.