# Golang How to calculate simple interest in Golang

It is a short tutorial about how to calculate simple interest using golang

## #what is Simple Interest with formula

Simple interest is an interest applied to the principal amount applies to the rate of interest in a period for some time.

Normally, To calculate simple interest in mathematical terms, We have used the formula.

``````    Simple Interest=P x N x R/100
``````
• P is the principal amount
• N is the Number of months
• R is the interest rate

In a program code,

• Take input of principal amount, interest, and Period
• Store all this in a variables
• Calculate using the above formula
• Finally print the result

Here is the golang program code to calculate simple interest

``````package main

import (
"fmt"
)

func main() {
var principal, interest, period, total float64;
fmt.Print("Please enter principal amount: ")
fmt.Scanln(&principal)
fmt.Print("Please enter Interest Rate: ")
fmt.Scanln(&interest)

fmt.Print("Please enter period: ")
fmt.Scanln(&period)

total= (principal* interest* period) / 100

fmt.Println("\nSimple Interest  Amount: ", total)
fmt.Println("\n Total  Amount: ", amount+total)

}
``````

Output:

``````Please enter principal amount: 10000
Please enter Interest Rate: 24
Please enter the period: 1
Simple Interest  Amount: 2400
Total  Amount: 12400
``````

This program takes an input - principal, rate of interest, and period in years and stores these values in a variable.

Calculate the simple interest and returns total amount.

## #Conclusion

In this example, You learned to calculate simple interest principal amount in Go language.