What are decimals? An introduction
A decimal writes a number using place values after a decimal point. Decimals are common in calculations, measurements, money, rates, and data entry because they work naturally with base-ten arithmetic.
The decimal 0.75 means seventy-five hundredths, while 1.25 means one and twenty-five hundredths. Those same values can also be shown as percentages.
What are percentages? An introduction
A percentage expresses a value per one hundred. It is a compact way to show shares, rates, increases, discounts, and comparisons.
For example, 75% means 75 out of 100, which is the same value as the decimal 0.75.
How to convert decimal to percent by hand
Multiply the decimal by 100 and add the percent sign. Moving the decimal point two places to the right gives the same result.
For example, 0.75 x 100 = 75%, and 1.25 x 100 = 125%.
How to turn a decimal into a percent - examples
The decimal 0.5 becomes 50%. The decimal 0.0125 becomes 1.25%. The decimal 2 becomes 200%.
Values above 100% are valid when the decimal is greater than 1, because the value is more than one full whole.
How to use the decimal to percentage converter
Enter a decimal value to see the matching percentage. The result panel shows the decimal entered, the percentage, and the conversion row used to calculate it.
This page is intentionally one way: decimal to percent. If you need the reverse direction, divide the percentage by 100 separately.
How to convert percent to a decimal by hand
Divide the percentage by 100 and remove the percent sign. This reverses the decimal-to-percent operation.
For example, 12.5% divided by 100 equals 0.125.
How to turn a percent into a decimal - examples
50% becomes 0.5, 125% becomes 1.25, and 1.25% becomes 0.0125.
The direction matters: decimal to percent multiplies by 100, while percent to decimal divides by 100.
Use our tool as a percentage to decimal converter
For a percentage-to-decimal conversion, divide the percentage by 100. For example, 3% becomes 0.03.
The editable calculator above remains focused on decimal-to-percent conversion so users do not confuse the direction of the calculation. This keeps classroom examples and quick checks easier to audit.