Enter the length of your index finger (in) and the length of your ring finger (in) into the Digit Ratio Calculator. The calculator will evaluate and display the Digit Ratio.

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## Digit Ratio Formula

The following formula is used to calculate the Digit Ratio.

**DR = 2D / 4D**

- Where DR is the Digit Ratio ( )
- 2D is the length of your index finger (in)
- 4D is the length of your ring finger (in)

## How to Calculate Digit Ratio?

The following example problems outline how to calculate Digit Ratio.

Example Problem #1:

- First, determine the length of your index finger (in).
- The length of your index finger (in) is given as: 2.125.

- Next, determine the length of your ring finger (in).
- The length of your ring finger (in) is provided as: 2.35.

- Finally, calculate the Digit Ratio using the equation above:

DR = 2D / 4D

The values given above are inserted into the equation below and the solution is calculated:

DR = 2.125 / 2.35 = .904

Example Problem #2:** **

For this problem, the variables required are provided below:

length of your index finger (in) = 2.5

length of your ring finger (in) = 3

Test your knowledge using the equation and check your answer with the calculator above.

DR = 2D / 4D** = ?**