{"name":"Circumference Calculator","short_name":"CalcMate","description":"Calculate the circumference of a circle from radius, diameter, or area. Detailed formula steps (C = 2πr), diameter to circumference conversion, and precise results in inches, cm or meters.","start_url":"/en/math/circumference","display":"standalone","background_color":"#ffffff","theme_color":"#10b981","icons":[{"src":"/icons/web-app-manifest-192x192.png","sizes":"192x192","type":"image/png","purpose":"any maskable"},{"src":"/icons/web-app-manifest-512x512.png","sizes":"512x512","type":"image/png"}]}