# Program to convert speed in km/hr to m/sec and vice versa in C++

Conversion Formulas −

1 km/hr = 5/18 m/sec or 0.277778 m/sec
1 m/sec = 18/5 km/hr or 3.6 km/hr

Example

Input-: km = 60.00
mk = 70.00
Output-: speed in meter per second = 16.6667
speed in km per hour = 252

## Algorithm

Start
Step 1 -> Declare function to convert km/hr into m/sec
float km_m(float km)
return (0.277778 * km)
Step 2 -> Declare function to convert m/sec into km/hr
float m_km(float mk)
return (3.6 * mk)
step 3 -> In main()
declare variable as float km = 60.0 and float mk = 70.0
Print km_m(km)
Print m_km(mk);
Stop

## Example

#include <bits/stdc++.h>
using namespace std;
//function to convert km/hr into m/sec
float km_m(float km){
return (0.277778 * km);
}
//function to convert m/sec into km/hr
float m_km(float mk){
return (3.6 * mk);
}
int main(){
float km = 60.0;
float mk = 70.0;
cout << "speed in meter per second = " << km_m(km)<<endl<< " speed in km per hour = " << m_km(mk);
return 0;
}

## Output

speed in meter per second = 16.6667
speed in km per hour = 252