To convert a decimal to a percentage, multiply it by 100, which moves the decimal point two places to the right. 0.375 becomes 37.5%, 0.05 becomes 5% and 1.2 becomes 120%.
Formula
percentage = decimal × 100 Examples
- 0.08 = 8%.
- 2.5 = 250%.
Printable: Fraction to percent chart
Common mistakes
- Moving the point only one place: 0.05 is 5%, not 0.5%.
- Reading 0.5% as 0.5. In decimal form, 0.5% is 0.005.
In Excel and Google Sheets
- Decimal in A2
=A2 (then format the cell as Percentage)
FAQ
How do I turn a percentage back into a decimal?
Divide by 100: 37.5% is 0.375.
Why does Excel show 0.2 as 20%?
Percentage format multiplies the stored value by 100 for display. The cell still holds 0.2.
What is 1 as a percentage?
100%.
How we calculate: exact decimal math (no rounding errors), you choose the decimal places, and your numbers never leave your browser. Methodology →
Updated October 2026