20 percent as a probability
Percent to Probability Converter
What is 20% chance as a 1 in X probability?
Answer
A 20% chance is
1 in 5
On average once per 5 tries — not a guarantee: tries are independent. As odds it is 1 to 4 (1 for, 4 against).
| chance | tries | |
|---|---|---|
| 50% | by try 4 | |
| ≈ 67.2% | 5 tries (= X) | |
| 90% | by try 11 | |
| 95% | by try 14 | |
| 99% | by try 21 |
20% = 20 ÷ 100 = 0.2; X = 1 ÷ 0.2 = 5
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See Also
- Percentage Calculator: Fraction to Percent - What percentage one number is of another? Convert fraction into a percentage
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Percent to Probability Conversion Table
| Percent | Probability |
|---|---|
| 5% | 1 in 20 |
| 6% | ≈ 1 in 16.67 |
| 7% | ≈ 1 in 14.29 |
| 8% | 1 in 12.5 |
| 9% | ≈ 1 in 11.11 |
| 10% | 1 in 10 |
| 11% | ≈ 1 in 9.09 |
| 12% | ≈ 1 in 8.33 |
| 13% | ≈ 1 in 7.69 |
| 14% | ≈ 1 in 7.14 |
| 15% | ≈ 1 in 6.67 |
| 16% | 1 in 6.25 |
| 17% | ≈ 1 in 5.88 |
| 18% | ≈ 1 in 5.56 |
| 19% | ≈ 1 in 5.26 |
| 20% | 1 in 5 |
| 21% | ≈ 1 in 4.76 |
| 22% | ≈ 1 in 4.55 |
| 23% | ≈ 1 in 4.35 |
| 24% | ≈ 1 in 4.17 |
| 25% | 1 in 4 |
| 26% | ≈ 1 in 3.85 |
| 27% | ≈ 1 in 3.7 |
| 28% | ≈ 1 in 3.57 |
| 29% | ≈ 1 in 3.45 |
| 30% | ≈ 1 in 3.33 |
| 31% | ≈ 1 in 3.23 |
| 32% | ≈ 1 in 3.13 |
| 33% | ≈ 1 in 3.03 |
| 34% | ≈ 1 in 2.94 |