# How to Calculate and Solve for Water Convergence Efficiency | Methods of Application of Water

**Last Updated on April 20, 2024**

The image above represents water convergence efficiency. Two essential parameters are needed to calculate water convergence efficiency: water delivered to the irrigation plot (wf) and water delivered from the source** (w _{d}).**

**The formula for calculating water convergence efficiency:**

E_{c} = ^{100 . wf} / _{wd}

Where:

E_{c} = Water Convergence Efficiency

w_{f} = Water delivered to the Irrigated Plot

w_{d} = Water delivered from the Source

Let’s solve an example;

Find the water convergence efficiency when the water delivered to the irrigated plot is 30 and the water delivered from the source is 10.

This implies that;

w_{f} = Water delivered to the Irrigated Plot = 30

w_{d} = Water delivered from the Source = 10

E_{c} = ^{100 . wf} / _{wd}

That is, E_{c} = ^{100 . (30)} / _{10}

E_{c} = ^{3000} / _{10}

E_{c} = 300

Therefore, the **water convergence efficiency **is **300%.**

**Calculating the Water Delivered to the Irrigated Plot when the Water Convergence Efficiency and the Water Delivered from the Source are Given**

w_{f} = ^{Ec x wd} / _{100}

Where;

w_{f} = Water delivered to the Irrigated Plot

E_{c} = Water Convergence Efficiency

w_{d} = Water delivered from the Source

Let’s solve an example;

Find the water delivered to the irrigated plot when the water convergence efficiency is 20 and the water delivered from the source is 5.

This implies that;

E_{c} = Water Convergence Efficiency = 20

w_{d} = Water delivered from the Source = 5

w_{f} = ^{Ec x wd} / _{100}

So, w_{f} = ^{20 x 5} / _{100}

w_{f} = ^{100} / _{100}

w_{f} = 1

Therefore, the **water delivered to the irrigated plot **is **1%.**

**Calculating the Water Delivered from the Source when the Water Convergence Efficiency and the Water Delivered to the Irrigated Plot are Given**

w_{d} = ^{100 x wf} / _{Ec}

Where;

w_{d} = Water delivered from the Source

E_{c} = Water Convergence Efficiency

w_{f} = Water delivered to the Irrigated Plot

Let’s solve an example;

Find the water delivered from the source when the water convergence efficiency is 40 and the water delivered to the irrigated plot is 20.

This implies that;

E_{c} = Water Convergence Efficiency = 40

w_{f} = Water delivered to the Irrigated Plot = 20

w_{d} = ^{100 x wf} / _{Ec}

Then, w_{d} = ^{100 x 20} / _{40}

w_{d} = ^{2000} / _{40}

w_{d} = 50

Therefore, the **water delivered from the source **is **50%.**

Read more: How to Calculate and Solve for Water Application Efficiency | Methods of Application of Water

**How to Calculate Water Convergence efficiency Using Nickzom Calculator**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the water convergence efficiency.

To get the answer and workings of the water convergence efficiency 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 **Methods of Application of Water **under **Agricultural**

Now, Click on **Water Convergence Efficiency**** **under **Methods of Application of Water**

The screenshot below displays the page or activity to enter your values, to get the answer for the water convergence efficiency according to the respective parameters which is the **Water delivered to the Irrigated Plot (w _{f}) **and

**Water delivered from the Source (w**

_{d}).Now, enter the values appropriately and accordingly for the parameters as required by the **Water delivered to the Irrigated Plot (w _{f})** is

**30**and

**Water delivered from the Source (w**is

_{d})**10**.

Finally, Click on Calculate

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