How to change percent to decimal?
Type a percent. The percent to decimal calculator divides it by 100 and shows the decimal with every digit, plus the working.
- Decimal
- 0.625
62.5% ÷ 100 = 0.625.
- How
- 62.5% ÷ 100 = 0.625
Decimal: 0.625. 62.5% ÷ 100 = 0.625.
How to calculate
Turns a percent into a decimal by dividing by 100, exactly as typed: 62.5% is 0.625 and 120% is 1.2.
Example with the default inputs (Percent 62.5%): 62.5% ÷ 100 = 0.625.
Method: decimal = percent ÷ 100: move the decimal point two places to the left and drop the % sign.
- The percent is taken exactly as typed, so the decimal shows every digit with no rounding.
- A percent above 100% gives a decimal above 1; a negative percent gives a negative decimal.
Worked examples
Each example is checked against the calculator on every build.
- Percent 62.5% gives Decimal 0.625, How 62.5% ÷ 100 = 0.625.Source: OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a percent to a decimal: divide by 100, move the decimal point two places left), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05)
- Percent 5% gives Decimal 0.05.Source: OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a percent to a decimal: divide by 100, move the decimal point two places left), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05)
- Percent 120% gives Decimal 1.2.Source: OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a percent to a decimal: divide by 100, move the decimal point two places left), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05)
- Percent 0.35% gives Decimal 0.0035.Source: OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a percent to a decimal: divide by 100, move the decimal point two places left), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05)
- Percent -7.25% gives Decimal −0.0725.Source: OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a percent to a decimal: divide by 100, move the decimal point two places left), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05)
How it works
Percent means "per hundred", so
decimal = percent ÷ 100
Dividing by 100 moves the decimal point two places to the left; add zeros in front when the percent has fewer than two digits before the point.
Exact arithmetic. The percent is read exactly as typed (the shortest decimal that gives the stored number), so the decimal is exact and shows every digit. No rounding is done. A negative percent keeps its sign, shown with a true minus sign (−).
Range. The percent can be from −100,000,000,000,000% to 100,000,000,000,000%.
Output format. The headline is the decimal with every digit, no thousands separators. The "How" line reads <percent>% ÷ 100 = <decimal>.
Worked examples by hand
62.5%. 62.5 ÷ 100 = 0.625.
5%. 5 ÷ 100 = 0.05.
120%. 120 ÷ 100 = 1.2.
0.35%. 0.35 ÷ 100 = 0.0035.
−7.25%. −7.25 ÷ 100 = −0.0725.
Other questions people ask
How do you change a percent to a decimal?
Divide by 100 and drop the % sign. In practice you move the decimal point two places to the left: 62.5% becomes 0.625.
What is 5% as a decimal?
5 ÷ 100 = 0.05. Add a zero in front when you move the point past the first digit.
What is 0.35% as a decimal?
0.35 ÷ 100 = 0.0035. A percent below 1% gives a decimal below 0.01.
What is 120% as a decimal?
120 ÷ 100 = 1.2. Any percent above 100% is a decimal above 1.
Why use the decimal form?
You multiply by the decimal to take a percent of a number: 15% of 80 is 0.15 × 80 = 12. Interest rates go into formulas as decimals too.
How do I go from a decimal back to a percent?
Multiply by 100: 0.625 is 62.5%. The decimal to percent calculator does this.