Metric Converter(Simple Conditions)

package main

import "fmt"

func main() {
    var distance float64
    fmt.Scanln(&distance)

    var inputMetric, outputMetric string
    fmt.Scanln(&inputMetric)
    fmt.Scanln(&outputMetric)

    if inputMetric == "m" {
        distance /= 1000
    } else if inputMetric == "cm" {
        distance /= 100000
    } else if inputMetric == "mm" {
        distance /= 1000000
    } else if inputMetric == "mi" {
        distance /= 0.621371192
    } else if inputMetric == "in" {
        distance /= 39370.0787
    } else if inputMetric == "ft" {
        distance /= 3280.8399
    } else if inputMetric == "yd" {
        distance /= 1093.6133
    }

    if outputMetric == "m" {
        distance *= 1000
    } else if outputMetric == "cm" {
        distance *= 100000
    } else if outputMetric == "mm" {
        distance *= 1000000
    } else if outputMetric == "mi" {
        distance *= 0.621371192
    } else if outputMetric == "in" {
        distance *= 39370.0787
    } else if outputMetric == "ft" {
        distance *= 3280.8399
    } else if outputMetric == "yd" {
        distance *= 1093.6133
    }

    fmt.Printf("%f", distance)
}