Convert any percentage into a decimal — below 1%, above 100% and negatives — with the working shown.
To convert a percent to a decimal, remove the percent sign and divide by 100. This is the same as moving the decimal point two places to the left. For example, 62.5% ÷ 100 = 0.625. This calculator shows the exact result and every step.
Enter a percentage such as 50%, 12.5%, 150% or -20%. The % sign is optional.
Type a percentage with or without the % sign — 50, 50%, 12.5%, 150%, 0.5% or -20% all work. Leading-point notation like .5% and thousands separators like 1,000% are accepted too. Press Convert to see the decimal, a note on whether the percentage is below, equal to or above 100%, and the working. Use Copy result to reuse the answer.
Remove the percent sign and divide the number by 100. Because our number system is base 10, dividing by 100 shifts every digit two places, which is the same as moving the decimal point two places to the left.
÷ 100move the point two places left→ 0.5 25% → 0.25 75% → 0.75→ 1 150% → 1.5 1% → 0.01 0.5% → 0.005
A percentage is a number out of 100. When you write 50%, you are saying 50 per hundred, which is the fraction 50/100. Dividing by 100 works that fraction out as a plain number: 0.5. The percent sign is really a shorthand for "÷ 100", so removing it means you must do that division yourself.
| Percent | Decimal |
|---|---|
| 0% | 0 |
| 0.5% | 0.005 |
| 1% | 0.01 |
| 5% | 0.05 |
| 10% | 0.1 |
| 12.5% | 0.125 |
| 20% | 0.2 |
| 25% | 0.25 |
| 33.3% | 0.333 |
| 40% | 0.4 |
| 50% | 0.5 |
| 62.5% | 0.625 |
| 66.6% | 0.666 |
| 75% | 0.75 |
| 80% | 0.8 |
| 87.5% | 0.875 |
| 90% | 0.9 |
| 100% | 1 |
| 125% | 1.25 |
| 150% | 1.5 |
| 200% | 2 |
| Percent | Decimal | Fraction |
|---|---|---|
| 10% | 0.1 | 1/10 |
| 12.5% | 0.125 | 1/8 |
| 20% | 0.2 | 1/5 |
| 25% | 0.25 | 1/4 |
| 33.333…% | 0.333… | 1/3 |
| 50% | 0.5 | 1/2 |
| 62.5% | 0.625 | 5/8 |
| 66.666…% | 0.666… | 2/3 |
| 75% | 0.75 | 3/4 |
| 87.5% | 0.875 | 7/8 |
| 100% | 1 | 1 |
Percentages greater than 100 convert to decimals greater than 1: 120% = 1.2, 150% = 1.5, 200% = 2 and 250% = 2.5. Be careful with wording — a final value of 200% means twice the reference amount, which is a 100% increase from the original, not a 200% increase.
Small percentages need care: 0.5% = 0.005, 0.1% = 0.001 and 0.05% = 0.0005. A common mistake is reading 0.5% as 0.5. It is not — 0.5% is five thousandths, one hundred times smaller. The rule never changes: divide by 100.
Negative percentages convert the same way and keep the sign: -10% = -0.1, -25% = -0.25 and -150% = -1.5. They usually describe a loss, a decrease, or a value below a reference point — for example a -10% change in a share price.
These are two different measurements. If a rate rises from 20% to 25%, that is an increase of 5 percentage points, but a relative increase of 25% (because 5 ÷ 20 = 0.25). News reports and financial documents use both, so it is worth checking which one is meant.
Converting percentages to decimals is the first step in most calculations: applying discounts and sale prices, working out GST and tax rates, interest rates and investment returns, test scores, statistics and probability, profit margins, growth and decline figures, and data analysis. Calculators and spreadsheets nearly always need the decimal form before they can multiply.
1) 0.4 2) 0.9 3) 0.05 4) 0.75 5) 1
1) 0.875 2) 1.25 3) 2.5 4) -0.35 5) 0.0005
How do you convert a percent to a decimal?
Remove the percent sign and divide the number by 100. This is the same as moving the decimal point two places to the left. For example, 62.5% divided by 100 = 0.625.
What is 50% as a decimal?
50% as a decimal is 0.5, because 50 divided by 100 = 0.5.
What is 25% as a decimal?
25% as a decimal is 0.25, because 25 divided by 100 = 0.25.
What is 75% as a decimal?
75% as a decimal is 0.75, because 75 divided by 100 = 0.75.
What is 12.5% as a decimal?
12.5% as a decimal is 0.125, because 12.5 divided by 100 = 0.125.
What is 62.5% as a decimal?
62.5% as a decimal is 0.625, because 62.5 divided by 100 = 0.625.
What is 100% as a decimal?
100% as a decimal is 1, because 100 divided by 100 = 1. A whole is 1.
What is 150% as a decimal?
150% as a decimal is 1.5, because 150 divided by 100 = 1.5. Percentages above 100% give decimals above 1.
What is 0.5% as a decimal?
0.5% as a decimal is 0.005, because 0.5 divided by 100 = 0.005. It is not 0.5, which would be 50%.
Can a percentage be greater than 100?
Yes. A percentage above 100% simply means more than the whole reference amount. For example, 200% converts to 2, meaning twice the original.
How do you convert a negative percentage to decimal?
Divide by 100 and keep the minus sign. So -20% divided by 100 = -0.2. Negative percentages usually show a decrease or a loss.
Why do you divide by 100?
Percent means per hundred, so a percentage is already a number out of 100. Dividing by 100 works out that fraction as a plain decimal value.
Is moving the decimal point the same as dividing by 100?
Yes. In base 10, dividing by 100 shifts every digit two places, which is exactly the same as moving the decimal point two places to the left.
What is the difference between percent and percentage points?
A move from 20% to 25% is a rise of 5 percentage points, but a relative rise of 25%, because 5 divided by 20 = 0.25. They measure different things and should not be used interchangeably.
Is this Percent to Decimal Calculator free?
Yes. It is free with no sign-up, works on any device, and runs in your browser so your entries stay private.