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6 calculators

Percentages & Everyday Math Calculators

Use these calculators for quick percentage questions, shopping discounts, VAT or sales tax, restaurant tips, and everyday comparisons. Each tool shows the result instantly and includes formula notes, worked examples, and related calculators for the next step.

Tools in this category

Percentage Calculator Find what X% of a number is, or what percent one value is of another. Percentage Increase/Decrease See the percent change between two values. Discount Calculator Get the sale price and how much you save. VAT / Sales Tax Calculator Add or remove VAT and sales tax from any price. Tip Calculator Work out the tip and split the bill between people. Average (Mean) Calculator Find the mean, median, sum, count, min, max, and range of a list of numbers.

What this category covers

Use these calculators for quick percentage questions, shopping discounts, VAT or sales tax, restaurant tips, and everyday comparisons. Each tool shows the result instantly and includes formula notes, worked examples, and related calculators for the next step.

Each calculator has its own page with a focused form, formula notes, worked examples, and related tools. Start with the closest calculator below, then follow the related links when the problem needs another step.

Percentages & Everyday Math — common questions

Which percentage calculator should I use?

Use the general percentage calculator for X% of Y, reverse percentages, and part-of-whole questions. Use the percentage increase/decrease calculator when you are comparing a start value with an end value.

Can these calculators handle shopping math?

Yes. The discount calculator handles sale prices and stacked discounts, the VAT / sales tax calculator adds or removes tax, and the tip calculator splits a bill between people.