Educational

  • Average Grade Calculator
    Calculate your average grade by entering a list of scores. Instantly find the mean (sum divided by number of scores) for any set of grades.
  • Letter Grade to GPA Calculator
    Convert any letter grade (A+, A, B-, C, F) to its GPA point value on the standard unweighted 4.0 scale instantly and accurately.
  • CGPA Calculator (10-Point Scale)
    Free CGPA calculator on the 10-point scale. Enter grade points and credits per subject to get your credit-weighted CGPA and equivalent percentage instantly.
  • CGPA to Percentage Calculator
    Convert CGPA to percentage instantly using the standard CBSE formula (Percentage = CGPA × 9.5). Adjustable multiplier for other boards.
  • Percentage to GPA Calculator (4.0 Scale)
    Convert a percentage to GPA on the 4.0 scale instantly. Enter your percentage to get your GPA and an approximate letter grade.
  • Pass Percentage Calculator
    Calculate the pass percentage of a class or exam by entering the number of students passed and the total students. Instant pass and fail rates.
  • GPA to Percentage Calculator
    Convert GPA or CGPA to a percentage instantly. Use the standard 4.0 scale formula or the Indian CGPA × 9.5 method for accurate results.
  • Attendance Percentage Calculator
    Calculate your attendance percentage instantly. Enter classes attended and total classes to see your attendance rate, classes missed, and more.
  • Marks Percentage Calculator
    Calculate your exam marks percentage instantly. Enter marks obtained and total marks to get your percentage, marks lost, and score breakdown.
  • Coin Word Problem Calculator
    Practice US coin word problems. Enter coin counts and your guessed total; the calculator checks your answer and shows the step-by-step worked solution.
  • Three-Person Age Algebra Word Problem Calculator
    Solve and check three-person age word problems: two age differences plus a known total. Enter your answers and see the full step-by-step algebra.
  • Division Word Problem Practice Calculator
    Practice division word problems: cut a tube of a given length into equal pieces, type your answer, and instantly check it with a full worked solution.
  • Percentage Change Word Problem Practice Calculator
    Practice percentage change word problems. Enter old and new values, type your answer, and instantly check it against the full worked solution.
  • Weighted Course Grade Calculator
    Calculate your overall course grade as a weighted average of assignments, quizzes and exams. Enter number or letter grades with weights — works even if weights do not total 100.
  • Final Grade Calculator
    Find the grade you need on your final exam to hit your target, or calculate your overall course grade from your final score. Free weighted grade tool.
  • Significant Figures Counter
    Count how many significant figures are in any number - whole numbers, decimals, scientific notation and e-notation - and see which digits are significant.
  • Multiplication Tables Practice Quiz (1-12)
    Practice multiplication facts and times tables 1 to 12. Fill in the missing product or multiple, get instant feedback, and view a full reference grid.
  • Number and Word to Standard Notation Calculator
    Convert a number-word phrase like "16.76 Trillion" into full standard notation with comma separators plus scientific notation. Short-scale naming.
  • Long Division Calculator with Decimals
    Divide a dividend by a divisor to any number of decimal places. Truncates (does not round) the quotient. Handles negative and decimal inputs.
  • Long Multiplication Calculator
    Multiply two numbers with the standard long multiplication algorithm. See every partial product, carry digit, the digit grid, and step-by-step worked solution.
  • Multiples of a Number Calculator
    Generate the first 100 multiples of any positive integer, optionally only those strictly greater than a minimum value. Fast, accurate, comma-separated list.
  • Long Subtraction Calculator with Regrouping
    Subtract two whole numbers using the long-subtraction (borrowing/regrouping) method. See the answer plus a full column-by-column step-by-step solution.
  • Long Division Calculator with Remainders
    Free long division calculator that returns the whole-number quotient, remainder, and full step-by-step work so you can check any hand-worked division problem.
  • Lattice Multiplication Calculator
    Multiply two whole numbers and see the full lattice (gelosia) grid worked out step by step. Free lattice multiplication calculator with diagonals and product.

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