The image above represents total storage.

To compute for total storage, three essential parameters are needed and these paramters are **Storage co-efficient (k), Dimensionless constant (x) **and **Average outflow rate (O).**

The formula for calculating total storage:

s = k[x + (1 – x)O]

Where:

s = Total Storage

k = Storage Co-efficient

x = Dimensionless Constant

O = Average Outflow Rate

Let’s solve an example;

Find the total storage when the storage co-efficient is 12, the dimensionless constant is 10 and the average outflow rate is 6.

This implies that;

k = Storage Co-efficient = 12

x = Dimensionless Constant = 10

O = Average Outflow Rate = 6

s = k[x + (1 – x)O]

s = 12[10 + (1 – 10)6]

s = 12[10 + (-9)6]

s = 12[10 + -54]

s = 12[-44]

s = -528

Therefore, the **total storage **is **-528.**

**Calculating the Storage Co-efficient when the Total Storage, the Dimensionless Constant and the Average Outflow Rate is Given.**

k = ^{s} / _{[x + (1 – x)O]}

Where;

k = Storage Co-efficient

s = Total Storage

x = Dimensionless Constant

O = Average Outflow Rate

Let’s solve an example;

Find the storage co-efficient when the total storage is 32, the dimensionless constant is 8 and the average outflow rate is 4.

This implies that;

s = Total Storage = 32

x = Dimensionless Constant = 8

O = Average Outflow Rate = 4

k = ^{s} / _{[x + (1 – x)O]}

k = ^{32} / _{[8 + (1 – 8)4]}

k = ^{32} / _{[8 + (-7)4]}

k = ^{32} / _{[8 + -28]}

k = ^{32} / _{[-20]}

k = -1.6

Therefore, the **storage co-efficient **is **-1.6.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the total storage.

To get the answer and workings of the total storage using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 2,000 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

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

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

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

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Agricultural**** **under **Engineering****.**

Now, Click on **Hydrology II **under **Agricultural**

Now, Click on **Total Storage **under **Hydrology II**

The screenshot below displays the page or activity to enter your values, to get the answer for the total storage according to the respective parameters which is the **Storage co-efficient (k), Dimensionless constant (x) **and **Average outflow rate (O).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Storage co-efficient (k)** is **12**,** Dimensionless constant (x) **is **10 **and **Average outflow rate (O)** is **6**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the total storage and presents the formula, workings and steps too.