Calculators for teachers
Fast, accurate calculators for everyday classroom math: course grades, test scores and score conversions, final-exam targets, attendance, test item analysis, school days left, and long division worked step by step. Everything runs on your device, so your numbers never leave your browser.
Grade Calculator
Enter scores to see a current grade as a percentage and a letter, with weighted categories or a simple average.
Final Grade Calculator
Find the score you need on the final exam for an A, B, or C, or see that it's already secured.
Test Grade Calculator
Turn the number wrong into a percentage and letter grade, with a printable chart for the whole test.
Attendance Calculator
Calculate attendance percentage, how many absences are left before a target slips, or the attendance still needed to hit one.
Long Division Calculator
See any division worked out on paper: each divide, multiply, subtract and bring-down step, with a remainder or decimals.
Item Analysis Calculator
Paste a class's answers to get each question's difficulty and discrimination index, distractor check and test reliability.
School Days Calculator
Count the school days in a year or term, the days left, instructional hours and school weeks, after holidays and breaks.
Score Converter
Convert a score out of 40 to out of 100 or 60, for one student or the whole class, and turn rubric levels into a grade.