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Decimal to Percent Converter

Convert decimals to percentages and percentages to decimals

Converter
Mathematics
Numbers

Common Conversions

0.01→1%
0.05→5%
0.1→10%
0.125→12.5%
0.2→20%
0.25→25%
0.3333→33.33%
0.375→37.5%
0.4→40%
0.5→50%
0.6→60%
0.625→62.5%
0.6667→66.67%
0.7→70%
0.75→75%
0.8→80%
0.8333→83.33%
0.875→87.5%
0.9→90%
1→100%
1.25→125%
1.5→150%
2→200%
3→300%

Click any row to load it into the converter.

Conversion History

No conversions yet. Results will appear here after you convert.

About This Tool

The Decimal to Percent Converter instantly converts between decimal numbers and percentages in both directions. Enter any decimal to get its percentage equivalent, or any percentage to get its decimal form — with the formula shown step by step.

Converting between decimals and percentages is a fundamental math skill used in finance (interest rates, discounts), statistics (data representation), education (grading), and everyday life (sales tax, tips). This tool makes it quick and error-free.

You can also use our Hex-Decimal Converter for hexadecimal conversions, our Roman Numerals Converter for number system conversions, or our Time Converter for time unit conversions.

Browse more Mathematics tools for additional number converters and calculators.

All processing happens in your browser — no data is sent to servers.

Frequently Asked Questions (FAQ)

How do I convert a decimal to a percent?
Multiply the decimal by 100 and add the percent sign (%). For example, 0.75 × 100 = 75%. To convert a fraction like 3/4, first divide to get 0.75, then multiply by 100 to get 75%.
How do I convert a percent to a decimal?
Divide the percentage by 100 and remove the percent sign (%). For example, 75% ÷ 100 = 0.75. This is equivalent to moving the decimal point two places to the left.
Why do we multiply by 100 to convert decimals to percents?
Percent literally means "per hundred" (from Latin "per centum"). A decimal represents parts of a whole, while a percent represents parts per hundred. Multiplying by 100 converts between these two representations. Our Hex-Decimal Converter helps with other number system conversions.
What is 0.5 as a percent?
0.5 as a percent is 50%. This is because 0.5 × 100 = 50%. Similarly, 0.25 = 25%, 0.75 = 75%, and 1 = 100%.
What is 150% as a decimal?
150% as a decimal is 1.5. This is because 150% ÷ 100 = 1.5. Percentages greater than 100% represent values greater than 1 (the whole).
Is my data processed securely?
All conversions happen entirely in your browser. No data is sent to any server. Your conversion history is stored locally on your device using localStorage.

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