Percent to Decimal Conversion -
Decimal to Percent Conversion

Convert percentages to decimal numbers and vice versa

Percentages and Decimals

Percentages and decimals are two ways to express a fraction or part of a whole.

A percent (abbreviated as %) literally means 'per hundred' and is a unit of ratio that expresses a number of units per hundred units. The symbol % therefore simply means 'divided by 100'. For example, 45% means 45 per 100, or more simply, 0.45.

A decimal, on the other hand, is a way to express whole numbers, fractions, and mixed numbers using the decimal system, in which a comma is used to separate the whole part of a number from the fractional part. In a decimal number, digits to the left of the comma represent whole amounts, while digits to the right represent parts of a whole.

Converting percentages to decimals and vice versa is an important skill in many areas, including math, finance, physics, statistics, and many other fields. It's relatively straightforward:

• To convert a percent to a decimal, divide the number by 100 or move the decimal point two places to the left. For example, 45% becomes 0.45.
• To convert a decimal to a percent, multiply the number by 100 or move the decimal point two places to the right. For example, 0.45 becomes 45%.

It's important to understand that converting between percentages and decimals does not change the value of the number, but only the way it is presented. 45% and 0.45 both represent the same part of a whole.