The image above represents elevation correction. To calculate elevation correction, two essential parameters are needed and these parameters are **Free Air Correction (Î´g _{F})Â **andÂ

**Bouguer Correction (Î´g**

_{B}).The formula for calculating elevation correction:

Î´g_{E}Â = Î´g_{F}Â – Î´g_{B}

Where:

Î´g_{E}Â = Elevation Correction

Î´g_{F}Â = Free Air Correction

And, Î´g_{B} = Bouguer Correction

Let’s solve an example;

Find the elevation correction when the free air correction is 12 and the bourger correction is 17.

This implies that;

Î´g_{F} = Free Air Correction = 12

Î´g_{B} = Bouguer Correction = 17

That is, Î´g_{E}Â = Î´g_{F}Â – Î´g_{B}

Î´g_{E} = 12 – 17

Î´g_{E}Â = -5

Therefore, theÂ **elevation correctionÂ **isÂ **-5 mGal.**

**Calculating the Free Air Correction when the Elevation Correction and the Bourger Correction are Given**

Î´g_{F} = Î´g_{E} + Î´g_{B}

Where;

Î´g_{F}Â = Free Air Correction

Î´g_{E}Â = Elevation Correction

And, Î´g_{B}Â = Bouguer Correction

Let’s solve an example;

Find the free air correction when the elevation correction is 34 and the bourger correction is 21.

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This implies that;

Î´g_{E} = Elevation Correction = 34

Î´g_{B} = Bouguer Correction = 21

This means, Î´g_{F} = Î´g_{E} + Î´g_{B}

Î´g_{F} = 34 + 21

Î´g_{F} = 55

Therefore, theÂ **free air correctionÂ **isÂ **55.**

Read more:How to Calculate and Solve for Free Air Anomaly | Gravity

**Calculating the Bourger Correction when the Elevation Correction and the Free Air Correction is Given**

Î´g_{B}Â = Î´g_{F} – Î´g_{E}

Where;

Î´g_{B}Â = Bouguer Correction

Î´g_{E}Â = Elevation Correction

And, Î´g_{F} = Free Air Correction

Let’s solve an example;

Find the bourger correction when the elevation correction is 21 and the free air correction is 44.

This implies that;

Î´g_{E} = Elevation Correction = 21

Î´g_{F} = Free Air Correction = 44

Then, Î´g_{B}Â = Î´g_{F} – Î´g_{E}

Î´g_{B} = 44 – 21

Î´g_{B} = 23

Therefore, theÂ **bourger correctionÂ **isÂ **23.**

**How to Calculate Elevation Correction | Gravity in Nickzom Calculator**

Nickzom Calculator â€“Â **The Calculator Encyclopedia** is capable of calculating the elevation correction.

To get the answer and workings of the elevation correction using the **Nickzom Calculator â€“ The Calculator Encyclopedia.Â **First, you need to obtain the app.

You can get this app via any of these means:

**Web**Â â€“Â https://www.nickzom.org/calculator-plus

To get access to theÂ **professionalÂ **version via web, you need toÂ **register**Â andÂ **subscribeÂ **for**Â NGN 2,000Â **per**Â annum**Â to have utter access to all functionalities.

You can also try theÂ **demoÂ **version viaÂ https://www.nickzom.org/calculator

**Android (Paid)**Â â€“Â https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)**Â â€“Â https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)**Â â€“Â https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to theÂ **Calculator Map,Â **then click onÂ **Geology****Â **underÂ **Add-on****.**

Now, Click onÂ **GravityÂ **under **Geology**

So, Click on **Elevation Correction **underÂ **Gravity**

The screenshot below displays the page or activity to enter your values, to get the answer for the elevation correction according to the respective parameters which are the **Free Air Correction (Î´g _{F})Â **andÂ

**Bouguer Correction (Î´g**

_{B}).Now, enter the values appropriately and accordingly for the parameters as required by the **Free Air Correction (Î´g _{F}) **is

**12**andÂ

**Bouguer Correction (Î´g**is

_{B})**17**.

Finally, Click on Calculate

As you can see from the screenshot above,Â **Nickzom Calculator**â€“ The Calculator Encyclopedia solves for the elevation correction and presents the formula, workings and steps too.