Decimal to Percent Calculator

Convert decimals into percentages instantly with intelligent, user-friendly controls and guidance. Handle single values, bulk lists, percent change, ratios, and stepwise explanations instantly. Visualize comparisons, customize precision, then export polished CSV or PDF reports instantly. Perfect for students, analysts, teachers, and everyday accuracy seekers.

Decimal to percent conversion
Accepts negatives and scientific notation too.
Quickly convert many decimals at once into a detailed table.
Display options
Optional tools
Decimal Base
Returns decimal as percent and its value of chosen base.

Results

# Input decimal Converted percent Formula applied Explanation
Enter one or more decimal values above and click Convert.

Example decimal to percent conversions

Decimal Percent Explanation
0.01 1% 0.01 × 100 = 1
0.25 25% 0.25 × 100 = 25
0.75 75% 0.75 × 100 = 75
1.2 120% 1.2 × 100 = 120
-0.05 -5% -0.05 × 100 = -5

Formula used

To convert a decimal number d to a percentage P, multiply by 100:

P = d × 100

This calculator applies the same rule to every valid decimal, then rounds the final percentage to your selected number of decimal places.

How to Convert a Decimal to Percent

  1. Write down the decimal value, for example 0.36.
  2. Multiply the decimal by 100: 0.36 × 100 = 36.
  3. Attach the percent sign: 36 becomes 36%.
  4. If needed, round to your chosen decimal places.
  5. Check whether the result is reasonable for the context.

Any decimal can be turned into a percentage using this simple multiply-by-100 rule.

How to Convert a Percent to a Decimal

  1. Start with the percentage, for example 45%.
  2. Remove the percent sign so only the number remains.
  3. Divide the number by 100: 45 ÷ 100 = 0.45.
  4. Place the decimal point two places to the left.
  5. Use the decimal directly in formulas or calculations.

Reversing percent-to-decimal helps when entering data into calculators or spreadsheets.

What is decimal to percent conversion?

A decimal represents a part of a whole based on powers of ten. Converting it to percent simply rescales that value so the whole becomes 100.

For example, 0.4 becomes 40% because 0.4 × 100 = 40, then we attach the percent sign.

Common decimal to percent reference chart

Decimal Percent Usage example
0.1 10% Basic discount or probability estimate.
0.2 20% Tax rates, commissions, performance comparisons.
0.33 33% Approximate one-third share or split.
0.5 50% Half of a quantity or even probability.
0.875 87.5% Grades, survey responses, or completion rates.

Where this decimal to percent calculator is useful

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.