public class ConversionTool {


    public static void main(String[] args){
    
    }

    public static float CentimetersToInches(float centimeters){
        if(centimeters > 0){
            return centimeters * (float) 0.393701;
        }
        return 0;
    }

    public static float InchesToCentimeters(float inches){
        if(inches > 0){
            return inches / (float) 0.393701;
        }
        return 0;
    }

    public static float FeetToMeters(float feet){
        if (feet > 0){
            return feet * (float) 0.3048;
        }
        return 0;
    }

    public static float MetersToFeet(float meters){ 
        if (meters > 0){
            return meters / (float) 0.3048;
        }
        return 0;
    }

    public static float CelsiusToFahrenheit(float celsius){
        return (celsius * (float)1.8) + 32;
    }

    public static float FahrenheitToCelsius(float fahrenheit){
            return (fahrenheit - 32) /  (float)1.8;
    }

    public static float MphToKph(float mph){
     if (mph > 0){
            return mph * (float) 1.60934;
        }
        return 0;
    }

    public static float KphToMph(float kph){
     if (kph > 0){
            return kph / (float) 1.60934;
        }
        return 0;
    }
}