Onsite Calculator

OnSite Calculator is the essential construction calculator designed for builders, contractors, carpenters, and DIY enthusiasts who work with imperial measurements. IMPERIAL MATH MADE EASY • Calculate with feet, inches, and fractions (1/2, 1/4, 1/8, 1/16) • Add, subtract, multiply, and divide measurements instantly • See results in both feet-inches and total inches UNIT CONVERTER • Convert between millimeters, inches, centimeters, feet, and meters • Quick-access fraction buttons for common measurements TRIANGLE CALCULATOR • Calculate squareness for framing and layout using right triangle ratios • Speak your measurements instead of typing • Works in English and Portuguese • Perfect for hands-free calculations on the job site • Requires internet connection BUILT FOR THE JOB SITE • Clean, easy-to-read display • Large buttons for gloved hands • Fast and reliable Part of the OnSite Club ecosystem for construction professionals. Free to use.