C# Metrics Converter

using System;
using System.Collections;
using System.Collections.Generic;

namespace metricsConverter
{
    class Program
    {
        static void Main(string[] args)
        {
            double value = double.Parse( Console.ReadLine() );
            string startMetric = Console.ReadLine().ToLower();
            string finalMetric = Console.ReadLine().ToLower();
            //end of reading data;

            Dictionary<string, double> metrics = new Dictionary<string, double>();
                metrics.Add("m", 1);
                metrics.Add("mm", 0.001);
                metrics.Add("cm", 0.01);
                metrics.Add("mi", 1609.344);
                metrics.Add("in", 0.0254);
                metrics.Add("km", 1000);
                metrics.Add("ft", 0.3048);
                metrics.Add("yd", 0.9144);
            //end of adding metrics

            double startValue = 0;
            double finalValue = 0;
            //creater value for final calculations

            foreach (KeyValuePair<string, double> entry in metrics)
                {
                //keys and values from metrics dictionary are stored in entry
                    if(startMetric == entry.Key)
                    {
                        startValue = entry.Value;
                    }

                    if(finalMetric == entry.Key)
                    {
                        finalValue = entry.Value;
                    }
                }
            double result = (value * startValue) /
            Console.WriteLine("{0:f8}", result);
            //format result to 8-th digit
        }
    }
}