42 percent as a probability

Percent to Probability Converter

What is 42% chance as a 1 in X probability?

Answer

A 42% chance is

≈ 1 in 2.38

= 21 in 50

On average about once per 2.38 tries — not a guarantee: tries are independent. As odds it is 21 to 29 (21 for, 29 against).

Chance it happens at least once
chance		tries
50%		by try 2
≈ 66.4%		2 tries (X rounded)
90%		by try 5
95%		by try 6
99%		by try 9

42% = 42 ÷ 100 = 0.42; X = 1 ÷ 0.42 ≈ 2.38

Nearby values and other forms

See Also

Percentage Calculator: Fraction to Percent - What percentage one number is of another? Convert fraction into a percentage
Percentage Difference Calculator - Calculate percentage difference between two numbers
Percent off of a Number - Calculate the discounted price
Percent More than a Number - Calculate percentage increase
Percent of Number - Calculate percent of a number
Spin the Wheel - Random name picker and decision wheel — spin it and it chooses for you
Random Number Generator - Pick a random whole number between two bounds

Percent to Probability Conversion Table

Percent	Probability
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
35%	≈ 1 in 2.86
36%	≈ 1 in 2.78
37%	≈ 1 in 2.7
38%	≈ 1 in 2.63
39%	≈ 1 in 2.56
40%	1 in 2.5
41%	≈ 1 in 2.44
42%	≈ 1 in 2.38
43%	≈ 1 in 2.33
44%	≈ 1 in 2.27
45%	≈ 1 in 2.22
46%	≈ 1 in 2.17
47%	≈ 1 in 2.13
48%	≈ 1 in 2.08
49%	≈ 1 in 2.04
50%	1 in 2
51%	≈ 1 in 1.96
52%	≈ 1 in 1.92
53%	≈ 1 in 1.89
54%	≈ 1 in 1.85
55%	≈ 1 in 1.82
56%	≈ 1 in 1.79

FAQ

What is 42% chance as a 1 in X probability?

A 42% chance is ≈ 1 in 2.38

How do you convert 42% to a 1 in X probability?

To convert 42% to a "1 in X" format, divide 1 by (42 / 100). The result is ≈ 1 in 2.38.

What is 42% as a fraction?

42% is 42 out of every 100, which as a fully reduced fraction is 21/50.