EVERYDAY ARITHMETIC / TOOL COLLECTION

Math you can use.

Need a percentage, a sale price or a fair bill split? These calculators show the calculation and the answer, so you can make decisions with confidence.

Explore tools
01 / TOOLS IN THIS COLLECTION3 CALCULATORS

Choose your tool.

01 / TOOLPercentage CalculatorOpen calculator 02 / TOOLDiscount CalculatorOpen calculator 03 / TOOLTip CalculatorOpen calculator
02 / HOW TO CHOOSE

Start with
the right question.

Use the percentage calculator for parts, proportions and relative changes. The discount calculator takes a percentage off an original price. The tip calculator combines a percentage with a bill split.

WORKED EXAMPLE

A $120 item with a 20% discount saves $24, leaving $96 before tax. A 20% increase from $120 would instead add $24.