Percent to Decimal Calculator
Convert percentages to decimals instantly with step-by-step solutions
How to Convert Percents to Decimals
Converting percentages to decimals is the reverse of converting decimals to percentages. Since "percent" means "per hundred," we divide by 100 to convert back to decimal form.
Quick Method
Divide the percentage by 100
Formula: Decimal = Percent ÷ 100
Example: Converting 75%
- Start with 75%
- Remove the percent symbol: 75
- Divide by 100: 75 ÷ 100 = 0.75
Common Percent to Decimal Conversions
Alternative Method: Move Decimal Point
Instead of dividing by 100, you can move the decimal point two places to the left:
- 75% → 75. → 0.75
- 30% → 30. → 0.30 or 0.3
- 125% → 125. → 1.25
- 5% → 05. → 0.05
Frequently Asked Questions
How do you convert a percent to a decimal?
Divide the percentage by 100 or move the decimal point two places to the left. For example, 45% ÷ 100 = 0.45.
What is 50% as a decimal?
50% equals 0.5 as a decimal. When you divide 50 by 100, you get 0.5, which represents 50 parts per hundred.
How do you convert percentages greater than 100%?
Use the same method: divide by 100. For example, 150% ÷ 100 = 1.5 and 200% ÷ 100 = 2.0. These become decimals greater than 1.
What about percentages less than 1%?
Small percentages convert to small decimals. For example, 0.5% ÷ 100 = 0.005 and 0.1% ÷ 100 = 0.001.
Why do you divide by 100?
Because "percent" means "per hundred," a percentage is already a value divided by 100. To convert back to decimal form, we reverse this operation by dividing by 100.
Can you convert negative percentages?
Yes, negative percentages follow the same rule. For example, -25% ÷ 100 = -0.25. Negative percentages are used to represent decreases or losses.