Code:
#include <stdio.h>
#include<stdlib.h>
int menu();
int distance();
int sw;
int main()
{
menu();
float value;
value=distance();
printf("%f", value);
return 0;
}
int menu()
{
system("cls");
printf(" Please choose a category below\n");
printf(" 1.Weight\n");
printf(" 2.Measurement\n");
printf(" 3.Distance\n");
printf(" 4.Temperature \n ");
sw=getchar();
sw=sw-'0';
switch(sw)
{
case 1:
weight();
break;
case 2:
measurement();
break;
case 3:
distance();
break;
case 4:
temperature();
break;
case 5:
main();
break;
default:
menu();
break;
}
}
int weight()
{
system("cls");
printf(" Weight\n");
printf(" 1.Ounce to Pounds\n");
printf(" 2.Pounds to Ounce\n");
printf(" 3.Pounds to Kilograms\n");
printf(" 4.Kilograms to Pounds\n");
printf(" 5.Back to the Main menu\n");
sw=getchar();
sw=sw-'0';
switch(sw)
{
case 1:
OtoP();
break;
case 2:
PtoO();
break;
case 3:
PtoK();
break;
case 4:
KtoP();
break;
case 5:
main();
break;
default:
weight();
break;
}
}
int OtoP()
{
float oz,lb;
printf("\n\n");
printf("Enter Ounce: ");
scanf("%f",&oz);
lb=oz/16;
printf("\n\n");
printf("%f ounce = %f pounds",oz,lb);
getch();
return weight();
}
int PtoO()
{
float oz,lb;
printf("\n\n");
printf("Enter Pounds: ");
scanf("%f",&oz);
lb=oz*16;
printf("\n\n");
printf("%f Pounds = %f Ounce",oz,lb);
getch();
return weight();
}
int PtoK()
{
float kg,lb;
printf("\n\n");
printf("Enter Pounds: ");
scanf("%f",&kg);
lb=kg*0.453592;
printf("\n\n");
printf("%f Pounds = %f Kilograms",kg,lb);
getch();
return weight();
}
int KtoP()
{
float kg,lb;
printf("\n\n");
printf("Enter Kilograms: ");
scanf("%f",&kg);
lb=kg/0.453592;
printf("\n\n");
printf("%f Kilograms = %f Pounds",kg,lb);
getch();
return weight();
}
int measurement()
{
system("cls");
printf(" Measurement\n");
printf(" 1.Centimetres to Inches\n");
printf(" 2.Inches to Centimetres\n");
printf(" 3.Inches to Feet\n");
printf(" 4.Feet to Inches\n");
printf(" 5.Back to the Main menu\n");
sw=getchar();
sw=sw-'0';
switch(sw)
{
case 1:
CtoI();
break;
case 2:
ItoC();
break;
case 3:
ItoF();
break;
case 4:
FtoI();
break;
case 5:
main();
break;
default:
measurement();
break;
}
}
int CtoI()
{
float in,cm;
printf("\n\n");
printf("Enter Centimetres: ");
scanf("%f",&cm);
in=cm*0.3937;
printf("\n\n");
printf("%f Centimetres = %f Inches",cm,in);
getch();
return measurement();
}
int ItoC()
{
float in,cm;
printf("\n\n");
printf("Enter Inches: ");
scanf("%f",&cm);
in=cm/0.3937;
printf("\n\n");
printf("%f Inches = %f Centimetres",cm,in);
getch();
return measurement();
}
int ItoF()
{
float in,ft;
printf("\n\n");
printf("Enter Inches: ");
scanf("%f",&ft);
in=ft*0.083;
printf("\n\n");
printf("%f Inches = %f Foot",ft,in);
getch();
return measurement();
}
int FtoI()
{
float in,ft;
printf("\n\n");
printf("Enter Foot: ");
scanf("%f",&ft);
in=ft/0.083;
printf("\n\n");
printf("%f Foot = %f Inches",ft,in);
getch();
return measurement();
}
int distance()
{
system("cls");
printf(" Distance\n");
printf(" 1.Miles to kilometres\n");
printf(" 2.Kilomeres to miles\n");
printf(" 3.Back to the Main menu\n");
sw=getch();
sw=sw-'0';
switch(sw)
{
case 1:
MtoK();
break;
case 2:
KtoM();
break;
case 3:
main();
break;
default:
distance();
break;
}
}
int MtoK()
{
float k,m;
printf("\n\n");
printf("Enter miles: ");
scanf("%f",&m);
k=m*1.609344;
printf("\n\n");
printf("%f miles = %f kilometers",m,k);
getch();
return distance();
}
int KtoM()
{
float k,m;
printf("\n\n");
printf("Enter kilometres: ");
scanf("%f",&m);
k=m/1.609344;
printf("\n\n");
printf("%f kilometres = %f miles",m,k);
getch();
return distance();
}
int temperature()
{
system("cls");
printf(" Temperature\n");
printf(" 1.Fahrenheiht to Centigrade\n");
printf(" 2.Centigrade to Fahrenheiht\n");
printf(" 3.Kelvin to Fahrenheit\n");
printf(" 4.Kelvin to Centigrade\n");
printf(" 5.Back to Main Menu\n");
sw=getch();
sw=sw-'0';
switch(sw)
{
case 1:
FtoC();
break;
case 2:
CtoF();
break;
case 3:
KtoF();
break;
case 4:
KtoC();
break;
case 5:
main();
break;
default:
temperature();
break;
}
}
int FtoC()
{
float c,f;
printf("\n\n");
printf("Enter Fahrenheiht: ");
scanf("%f",&f);
c=(f-32)*5/9;
printf("\n\n");
printf("%f Fahrenheiht = %f Centigrade",f,c);
getch();
return temperature();
}
int CtoF()
{
float f,c;
printf("\n\n");
printf("Enter Centigrade: ");
scanf("%f",&c);
f=c*33.8;
printf("\n\n");
printf("%f Centigrade = %f Fahrenheiht",c,f);
getch();
return temperature();
}
int KtoF()
{
float f,k;
printf("\n\n");
printf("Enter Kelvin: ");
scanf("%f",&k);
f=((k-273.15)*1.8)+32;
printf("\n\n");
printf("%f Kelvin = %f Fahrenheit",k,f);
getch();
return temperature();
}
int KtoC()
{
float c,k;
printf("\n\n");
printf("Enter Kelvin: ");
scanf("%f",&k);
c=k-272.15;
printf("\n\n");
printf("%f Kelvin = %f Centigrade",k,c);
getch();
return temperature();
}
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