# Golang How to calculate simple interest in Golang

This is an short tutorial about how to calculate simple interest using golang

## what is Simple Interest with formula

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

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

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

In a program code,

• Take an 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.Scanln(&principal)
fmt.Scanln(&interest)

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
Simple Interest  Amount: 2400
Total  Amount: 12400
``````

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

Calculate the simple interest and returns total amount.

## Conclusion

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

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