Percent to Decimal Calculator
Enter any percentage to get the decimal equivalent instantly. Divides by 100 — so 75% becomes 0.75, 8.5% becomes 0.085, and 150% becomes 1.5. This conversion is required whenever a formula or spreadsheet function expects a rate as a decimal rather than a percentage. For the reverse — converting a decimal back to a percentage — use the decimal to percent calculator.
When to use this calculator
Use this before entering a percentage into a formula, function, or calculation that requires a decimal rate — interest rate formulas, loan calculators, Excel/Sheets financial functions (PMT, RATE, FV), or probability calculations.
Decimal
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Results are instant — nothing is stored and no account is needed.
Related Calculators
How to Calculate
- Enter the percentage value — just the number, without the % symbol.
- The decimal equivalent appears instantly.
Formula
Divide the percentage by 100 to move the decimal point two places to the left. For 37.5%: 37.5 ÷ 100 = 0.375. For 125%: 125 ÷ 100 = 1.25.
Examples
75%
0.75
8.5%
0.085
33.33%
0.3333
150%
1.5
Use Cases
- Converting interest rates for loan or savings formulas
- Entering rates into Excel PMT, FV, or RATE functions
- Converting probabilities expressed as percentages
- Applying a percentage discount in a manual calculation
- Converting tax rates before using them in price calculations
FAQ
What is 75% as a decimal?
75% as a decimal is 0.75. Divide by 100: 75 ÷ 100 = 0.75.
What is 15% as a decimal?
15% as a decimal is 0.15. Divide by 100: 15 ÷ 100 = 0.15. This is commonly needed for tip calculations — a 15% tip is the bill multiplied by 0.15.
What is 8.5% as a decimal?
8.5% as a decimal is 0.085. Divide by 100: 8.5 ÷ 100 = 0.085. Moving the decimal point two places to the left works for any value.
What is 100% as a decimal?
100% as a decimal is 1.0. 200% = 2.0, 150% = 1.5. Any percentage over 100% gives a decimal greater than 1.
Why do I need to convert percentages to decimals?
Many formulas require the decimal form of a rate. Compound interest, loan payment formulas, and spreadsheet functions like RATE() or PMT() all require the rate as a decimal. Entering 20% directly into a formula gives the wrong answer — you need 0.20.
How do I convert a percentage to a decimal without a calculator?
Divide by 100, or equivalently move the decimal point two places to the left. For 35%: 35 ÷ 100 = 0.35. For 7.5%: 7.5 ÷ 100 = 0.075. To go the other direction, use the decimal to percent calculator.