Use our free Degree of Unsaturation Calculator to check the degree of unsaturation of the given molecular formula instantly. All you need to do is give molecular formula in the input box and hit the calculate button to get the result within no time.

**Degree Of Unsaturation Calculator: **Are you looking for any free tool that does calculations and gives the accurate degree of unsaturation of a molecular formula? Then, here is the best way for you. Utilise our online Index of Hydrogen Deficiency Calculator and get the answer for your molecular formula easily. Have a look at the below steps and explore more about Degree of Unsaturation, its formula and example questions.

Go through the detailed steps to calculate the degree of unsaturation or index of hydrogen deficiency of a molecular formula.

- Get the structure diagram of the isomers in the molecular formula.
- Note down the number of double bonds, triple bonds and rings.
- Add total number of double bonds to the number of rings.
- Find the sum of the result and double of the number of triple bonds.

In organic chemistry, an unsaturated compound is one that contains at least one pi bond, double bond between two of its carbons.

The degree of unsaturation is also called the index of hydrogen deficiency. It is one of the easiest ways to calculate the number of multiple bonds or rings in a chemical structure. It is defined as the sum of the number of rings and the total number of multiple bonds in the organic compound.

Index of Hydrogen Deficiency formula is provided here.

Degree of Unsaturation = (Total Number of Double Bonds) + (2 x Total Number of Triple Bonds) + (Total Number of Rings)

**Example:**

**Question: Find the degree of unsaturation for C _{6}H_{7}N_{3}?**

Answer:

Degree of Unsaturation = (Total Number of Double Bonds) + (2 x Total Number of Triple Bonds) + (Total Number of Rings)

= 1 + 2 x 2 + 0

= 5

Therefore, the degree of unsaturation of C_{6}H_{7}N_{3} molecule is 5.

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** 1. What is meant by the degree of unsaturation?**

The degree of unsaturation is defined as the sum of the number of rings involved and a total number of multiple bonds present in an organic compound.

**2. How to find the degree of unsaturation?**

Add the total number of double bonds to the double o total number of triple bonds. Again, add the result to the total number of rings to get the degree of unsaturation of the molecular formula.

**3. How many degrees of unsaturation does a benzene ring have?**

The degree of unsaturation of a benzene ring is 4 degrees.

**4. What is the degree of unsaturation formula?**

The degree of unsaturation = Total number of double bonds + 2 x total number of triple bonds + total number of rings.