Convert a ratio to its decimal equivalent, with percentage, simplified ratio, and step-by-step division.
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Ratio input
Enter a ratio as two numbers (a:b) to convert it into decimal, percentage, simplified ratio, and fraction form.
Results
Step-by-step
Also in Ratios & Averages
Arithmetic
A ratio to decimal calculator converts a ratio a:b into its decimal equivalent by dividing a by b. It also shows the percentage, simplified ratio, and fraction form with step-by-step work.
To convert ratio a:b to a decimal, simply divide a by b. For example, 3:4 = 3 ÷ 4 = 0.75.
The result can also be expressed as a percentage by multiplying by 100, or as a fraction a/b which can be further simplified.
decimal = a ÷ b
Basic ratio to decimal conversion.
Frequently asked questions
Division by zero is undefined, so a ratio like 5:0 cannot be converted to a decimal.
Yes — when the first number is larger than the second (e.g. 5:2 = 2.5), the decimal exceeds 1.
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