Percent Calculators

Calculate percentage increase between two values. Enter the original and new value — see percent growth, increase amount, and the formula. Free.

Calculate percentage decrease between two values. Enter the original and new value — see percent reduction, decrease amount, and the formula. Free.

Convert any percentage to a decimal by dividing by 100. Enter percentage — get the decimal equivalent with fraction form and reverse shown. Free.

Convert any decimal to a percentage by multiplying by 100. Enter decimal — get the percentage equivalent with fraction form shown. Free.

Calculate the tip amount for any restaurant bill. Enter the total and tip % — see tip per person, total including tip, and custom tip amounts. Free.

Calculate Discount quickly and accurately. Enter your values — see the result with the formula, worked example, and unit options. Free.

Calculate Percentage Error quickly and accurately. Enter your values — see the result with the formula, worked example, and unit options. Free.

Calculate Percentage Off quickly and accurately. Enter your values — see the result with the formula, worked example, and unit options. Free.

Calculate Reverse Percentage quickly and accurately. Enter your values — see the result with the formula, worked example, and unit options. Free.

Calculate selling price from cost and markup percentage. Enter cost and markup — see selling price, profit margin, and gross profit. Free.

Calculate Tax and Tip Combined quickly and accurately. Enter your values — see the result with the formula, worked example, and unit options. Free.