How would you write this into pseudo code?

How would you write this into pseudo code

#include<cstdio>
#include<cstdlib>
#include<iostream>
using namespace std;
int main(int nNumberofArgs, char* pszArgs[])

//variables
string var, var1;
float cm, mile, kilometer, inch, meter, AU, fahrenheit, celsius, foot, quit, i;
//program
i = 1;
while (i <= 1000000000) 
    cout << "Enter the starting unit. For a list of all units and commands, type list. To exit, type quit. Please note that this program will only loop one billion times." << endl <<endl;
    cin >> var;
    cout << endl;

        if (var == "quit")

                return 0;

        //list of functions
        if  (var == "list")

            cout << "For cm to inch type centimeter. For inch to cm type inch. For miles to km type mile. For km to miles type kilometer. For meters to AU or feet type meter. For AU to meters type AU. For feet to meters type feet. For fahrenheit to celsius type fahrenheit. For Celsius to Fahrenheit type celsius then rerun the program." << endl << endl << endl;

        //inches to centimeters
        if  (var == "inch")

            cout << "Please enter the number of inches" << endl;
           cin >> inch;
            cm = inch * 2.54;
            cout << "Distance in centimeters:" << endl;
            cout << cm << endl;

        //centimeters to inches
        if  (var == "centimeter")

            cout << "Please enter the number of centimeters" << endl;
            cin >> cm;
            inch = cm / 2.54;
            cout << "Distance in inches:" << endl;
            cout << inch << endl;

        //miles to kilometers
        if  (var == "mile")

            cout << "Please enter the number of miles" << endl;
           cin >> mile;
            kilometer = mile * 1.609344;
            cout << "Distance in kilometers:" << endl;
            cout << kilometer << endl;

        //kilometers to miles
        if  (var == "kilometer")

            cout << "Please enter the number of kilometers" << endl;
            cin >> kilometer;
            mile = kilometer / 1.609344;
            cout << "Distance in miles:" << endl;
            cout << mile << endl;

        //meters to AU or feet
        if  (var == "meter")

            cout << "Please select which unit you would like to convert meters to out of Astronomical units and feet" << endl;
            cin >> var1;
            //AU
            if  (var1 == "AU");

                cout << "Please enter number of meters" << endl;
               cin >> meter;
                AU = meter / 149598000000;
                cout << "Distance in AU:" << endl;
                cout << AU << endl;

            //feet
            if  (var1 == "feet")

                cout << "Please enter number of meters" << endl;
                cin >> meter;
                foot = meter * 3.2808399;
                cout << "Distance in feet:" << endl;
                cout << foot << endl;

        //AU to meters
        if  (var == "AU")

            cout << "Please enter number of AU" << endl;
            cin >> AU;
            meter = AU * 149598000000;
            cout << "Distance in meters:" << endl;
            cout << meter << endl;

        //feet to meters
        if  (var == "feet")

            cout << "Please enter number of feet" << endl;
            cin >> foot;
            meter = foot / 3.2808399;
            cout << "Distance in meters:" << endl;
            cout << meter << endl;

        //fahrenheit to celsius
        if  (var == "fahrenheit")

            cout << "Please enter temperature in Fahrenheit." << endl;
            cin >> fahrenheit;
            celsius = (fahrenheit - 32) * (5 / 9);
            cout << "Temperature in celsius:" << endl;
            cout << celsius << endl;

        //celsius to fahrenheit
        if  (var == "celsius")

            cout << "Please enter temperature in Celsius." << endl;
            cin >> celsius;
            fahrenheit = (celsius * (9 / 5)) + 32;
            cout << "Temperature in Fahrenheit:" << endl;
            cout << fahrenheit << endl;

    i++;

system("PAUSE");