Decimal to Percent Calculator

Decimal to percent at a glance#

A decimal to percent calculator turns a decimal into a percentage. The rule is to multiply the decimal by 100 and add a percent sign, which is the same as moving the decimal point two places to the right. So 0.25 becomes 25%, and 0.5 becomes 50%.

To convert by hand, multiply the decimal by 100: 0.75 times 100 is 75, so 0.75 is 75%. Values of 1 and above give percentages of 100% or more, since 1.5 times 100 is 150%. To go the other way, divide the percent by 100.

Enter your decimal in the calculator above for the exact percent. The conversion is exact for terminating decimals; a repeating decimal like 0.3333 rounds to about 33.33%.

How to convert a decimal to a percent#

Multiply the decimal by 100 and add a percent sign. That is the same as moving the decimal point two places to the right, so 0.85 times 100 is 85, giving 85%. Values of 1 or more give 100% or above, since 1.5 times 100 is 150%.

Worked example: a discount#

A price tag shows a discount of 0.20 off. Converting, 0.20 times 100 is 20%, so the item is 20% off. On a $50 item that is $50 times 0.20, or $10 off, bringing the final price to $40. Reading the decimal as a percent makes the saving easier to compare across items.

Converting a percent back to a decimal#

Divide the percent by 100, which moves the decimal point two places left. So 85% becomes 0.85, and 7% becomes 0.07. This is the step you use before multiplying a percent by an amount, since 7% of $200 is 0.07 times 200, or $14.

Frequently asked questions#

What is 0.75 as a percent?#

0.75 times 100 is 75, so 0.75 equals 75%. Moving the decimal point two places right gives the same result.

How do I convert a decimal to a percent by hand?#

Multiply by 100 and add a percent sign. For 0.4 that is 40%; for 0.025 it is 2.5%.

Can a decimal convert to more than 100%?#

Yes. Any decimal of 1 or greater is at least 100%, since 1 is 100% and 1.5 is 150%.

How do I turn a percent back into a decimal?#

Divide the percent by 100, moving the point two places left. So 60% becomes 0.6 and 5% becomes 0.05.

What about a repeating decimal like 0.3333?#

It rounds at the precision you set, so 0.3333 reads as about 33.33%. Terminating decimals convert exactly.