{"id":145141,"date":"2025-05-26T15:15:51","date_gmt":"2025-05-26T09:45:51","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145141"},"modified":"2025-05-26T15:15:51","modified_gmt":"2025-05-26T09:45:51","slug":"c-program-on-simple-calculator","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/c-program-on-simple-calculator\/","title":{"rendered":"C Practical &#8211; Simple Calculator and Temperature Converter"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Simple calculator \r\n#include&lt;stdio.h&gt;\r\n#include&lt;conio.h&gt;\r\n#define clrscr() system(\"cls\")\r\nint main()\r\n{\r\n    char operator1;\r\n    double num1,num2,num3;\r\n    clrscr();\r\n    printf(\"Enter First Number: \");\r\n    scanf(\"%lf\",&amp;num1);\r\n    printf(\"Enter Second Number: \");\r\n    scanf(\"%lf\",&amp;num1);\r\n    printf(\"Enter Operator (+ , - , * , \/ )\");\r\n    operator1=getche();\r\n    switch(operator1)\r\n    {\r\n        case '+': \r\n               num3=num1+num2;\r\n               printf(\"\\n %.2lf\",num3);\r\n               break;\r\n       case '-': \r\n               num3=num1-num2;\r\n               printf(\"\\n %.2lf\",num3);\r\n               break;\r\n      case '*': \r\n               num3=num1*num2;\r\n               printf(\"\\n %.2lf\",num3);\r\n               break;\r\n    case '\/': \r\n               num3=num1\/num2;\r\n               printf(\"\\n %.2lf\",num3);\r\n               break;     \r\n    default:printf(\"\\n Invalid choice... !\");\r\n                                      \r\n    }\r\n  return 0;    \r\n}<\/pre>\n<h3>Program 2<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Temprature convertor\r\n#include&lt;stdio.h&gt;\r\n#include&lt;conio.h&gt;\r\n#define clrscr() system(\"cls\")\r\nint main()\r\n{\r\n    clrscr();\r\n    int choice;\r\n    double temp,convtemp;\r\n    printf(\"\\n------ Temprature Convertor---------\\n\");\r\n    printf(\"\\n1. Celsius to Fahrenheit\");\r\n    printf(\"\\n2. Fahrenheit to Celsius\");\r\n    printf(\"\\n --------------------------------------\");\r\n    printf(\"\\n Enter Your Choice: \");\r\n    scanf(\"%d\",&amp;choice);\r\n    if(choice==1)\r\n    {\r\n        printf(\"\\n Enter Celsius temprature\");\r\n        scanf(\"%lf\",&amp;temp);\r\n        convtemp=(temp*9\/5)+32;\r\n        printf(\"\\n Fahrenheit Temprature is : %.2lf\",convtemp);\r\n    }\r\n    else if(choice==2)\r\n    {\r\n        printf(\"Enter Fahrenheit temprature\");\r\n        scanf(\"%lf\",&amp;temp);\r\n        convtemp=(temp-32)*5\/9;\r\n        printf(\"\\n Celsius Temprature is : %.2lf\",convtemp);\r\n    }\r\n   else\r\n   printf(\"Invalid choice ! \");\r\nreturn 0;\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Simple calculator #include&lt;stdio.h&gt; #include&lt;conio.h&gt; #define clrscr() system(&#8220;cls&#8221;) int main() { char operator1; double num1,num2,num3; clrscr(); printf(&#8220;Enter First Number: &#8220;); scanf(&#8220;%lf&#8221;,&amp;num1); printf(&#8220;Enter Second Number: &#8220;); scanf(&#8220;%lf&#8221;,&amp;num1); printf(&#8220;Enter Operator (+ , &#8211; ,&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19488],"tags":[34258,23914,29589,34257,34259,29219,29218,34187,34167,34186],"class_list":["post-145141","post","type-post","status-publish","format-standard","hentry","category-c-programming","tag-c-program-on-simple-calculator","tag-c-programming","tag-c-project","tag-c-simple-calculator","tag-c-temperature-converter-project","tag-c-practical","tag-c-program","tag-c-program-on-temperature-converter","tag-simple-calculator-in-c","tag-temperature-converter-in-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C Practical - Simple Calculator and Temperature Converter - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/c-program-on-simple-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C Practical - Simple Calculator and Temperature Converter - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Simple calculator #include&lt;stdio.h&gt; #include&lt;conio.h&gt; #define clrscr() system(&quot;cls&quot;) int main() { char operator1; double num1,num2,num3; clrscr(); printf(&quot;Enter First Number: &quot;); scanf(&quot;%lf&quot;,&amp;num1); printf(&quot;Enter Second Number: &quot;); scanf(&quot;%lf&quot;,&amp;num1); printf(&quot;Enter Operator (+ , - ,&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/c-program-on-simple-calculator\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-26T09:45:51+00:00\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"C Practical - Simple Calculator and Temperature Converter - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/c-program-on-simple-calculator\/","og_locale":"en_US","og_type":"article","og_title":"C Practical - Simple Calculator and Temperature Converter - DataFlair","og_description":"Program 1 \/\/ Simple calculator #include&lt;stdio.h&gt; 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