Percent to Decimal

Divide percentages by 100 to get decimal values. Works with whole numbers and decimal percentages.

Convert any percentage to a decimal instantly. Divide by 100 to transform percentages like 25% into 0.25.

Percent (max 15 chars)
÷
100
?
Decimal
Try:
help_outlineHow to Useexpand_more

This tool divides any percent by 100 to give you the decimal equivalent. Just enter your percentage and the conversion happens instantly with a complete breakdown of the math.

The Division Method:

Take your percentage and divide it by 100, then drop the % sign.

Example: 10% → 10 / 100 = 0.10

Example: 67.5% → 67.5 / 100 = 0.675

Quick Shortcut:

Just shift the decimal point two places to the left and remove the % sign.

67.5% → 0.675 (decimal moves from after 7 to before 6)

infoWhat is Percent to Decimal?expand_more

Converting percent to decimal reverses the percentage calculation. Since "percent" means "per hundred," dividing by 100 tells you how many whole units the percentage represents. For instance, 50% equals 50 per 100, which simplifies to 0.5 or half.

Understanding the Math:

Take 50% as an example:

"Percent" means "per 100" or "over 100"

So 50% can be written as 50/100

50 / 100 = 0.5

Therefore: 50% = 0.5

Percentages Under 100%

Become decimals less than 1

75% → 0.75

Percentages Over 100%

Become decimals greater than 1

235% → 2.35

functionsFormulaexpand_more

Percent to Decimal Formula:

Decimal = Percent ÷ 100

Reverse: Decimal to Percent:

Percent = Decimal × 100

Shift the decimal point two places right and add the % symbol.

Example: 0.156 → 0.156 × 100 = 15.6%

The Shortcut Method:

Percent → Decimal: Move decimal 2 places LEFT

67.5% → 0.675

Decimal → Percent: Move decimal 2 places RIGHT

0.675 → 67.5%

lightbulbExamplesexpand_more

Half

50% = 0.5

50 / 100 = 0.5

Quarter

25% = 0.25

25 / 100 = 0.25

Small Percentage

10% = 0.1

10 / 100 = 0.1

Decimal Percentage

67.5% = 0.675

67.5 / 100 = 0.675

Over 100%

150% = 1.5

150 / 100 = 1.5

Small Decimal %

3.25% = 0.0325

3.25 / 100 = 0.0325

quizFAQexpand_more
Why would I need to convert percent to decimal?expand_more
Decimals are much easier for calculations. To find 25% of 80, converting first gives you 0.25 × 80 = 20. Most calculators and spreadsheets expect decimal format for multiplication.
How do I handle percentages with decimal points like 7.5%?expand_more
The same division applies. Take 7.5 and divide by 100 to get 0.075. Using the shortcut, move the decimal two places left: 7.5 becomes 0.075.
What happens with percentages above 100%?expand_more
They convert to decimals greater than 1. For example, 250% becomes 2.5, representing 2.5 times the original value. This is common when discussing growth or increases.
Why does dividing by 100 work?expand_more
Because 'percent' literally translates to 'per hundred.' When you have 50%, you have 50 per 100, or 50/100. Performing that division gives 0.5.
What about negative percentages?expand_more
Divide the same way and keep the negative sign. -25% becomes -25 ÷ 100 = -0.25. Negative percentages represent decreases or losses.
Is there an easy mental math method?expand_more
Yes—just move the decimal two spots to the left. For 67.5%, picture the decimal moving left past the 7 and 6, landing at 0.675. No division needed in your head.