Educational

  • Area of a Trapezoid Calculator
    Calculate the area of a trapezoid instantly from its two parallel bases and height using A = ½(b₁ + b₂)·h. Free, fast, and accurate.
  • Volume of a Rectangular Prism Calculator
    Calculate the volume of a rectangular prism (box) instantly with V = l × w × h. Also computes total surface area. Free, fast, and accurate.
  • Volume of a Cone Calculator
    Calculate the volume of a cone instantly from its radius and height using V = (1/3)πr²h. Free, accurate cone volume calculator with worked example.
  • Field Goal Percentage Calculator
    Calculate basketball field goal percentage (FG%) instantly. Enter field goals made and attempted to get shooting efficiency as a percentage.
  • Multiplication With Remainder Check Calculator
    Multiply two numbers and instantly verify with the fact family: a×b, b×a, p÷a and p÷b. Great for checking work and learning fact families.
  • Repeated Multiplication (Exponent) Calculator
    Calculate a raised to the power n (repeated multiplication). Enter a base and exponent to instantly compute aⁿ = a×a×…×a with this free power calculator.
  • Scientific Notation Multiplication Calculator
    Multiply two numbers in scientific notation: (a×10^m)×(b×10^n). Get the normalized product, coefficient, exponent and decimal value instantly.
  • Multiply Three Numbers Calculator
    Multiply three numbers instantly. Enter a, b and c to get the product a × b × c, including decimals and negatives. Fast, free and accurate.
  • Money Multiplication Calculator
    Multiply money fast: enter unit price and quantity to instantly get the total cost. Free price × quantity calculator for shopping, invoices, and budgeting.
  • Multiplying Negative Numbers Calculator
    Multiply negative numbers instantly. See the product and the sign rule: two negatives make a positive, one negative makes a negative. Free and accurate.
  • Fantasy Cricket Points Calculator
    Estimate Dream11-style fantasy cricket points from runs, wickets, catches and bonuses, with captain/vice-captain multipliers, for T20 scoring.
  • LSAT Score Calculator
    Estimate your LSAT scaled score (120–180) from your raw number of correct answers. Free LSAT practice-test score converter with approximate percentile.
  • Cricket Batting Average and Economy Rate Calculator
    Calculate a bowler's economy rate by dividing runs conceded by overs bowled. Instantly see runs per over and runs per ball for any cricket match.
  • Negative Marking Marks Calculator
    Calculate your exam score with negative marking. Enter correct and wrong answers, marks per correct, and penalty per wrong to get your final marks.
  • MCAT Score Calculator
    Add your four MCAT section scores (each 118–132) to get your total score on the 472–528 scale, with an approximate percentile. US AAMC exam.
  • WAIS-Style IQ Score Calculator (Deviation IQ, Mean 100 · SD 15)
    Convert a raw test score into a deviation IQ score using IQ = 100 + 15(x − μ)/σ. Get your z-score, percentile, and classification instantly.
  • Army ACFT Total Score Calculator (US)
    Add your six US Army ACFT event scores (0–100 each) to get your total out of 600 and see if you pass the 60-point minimum per event.
  • BMI Category Score Calculator
    Calculate your BMI (Body Mass Index) from weight and height in metric units and instantly see your category: underweight, normal, overweight or obese.
  • Minimum Grade to Pass Calculator
    Find the minimum grade you need on your final exam or remaining coursework to pass. Enter your current grade, its weight and the pass threshold.
  • Grade Needed Calculator
    Find the average score you need on your remaining assignments or final exam to reach your target course grade. Free, instant percentage calculator.
  • Current Grade Calculator (Grade So Far)
    Calculate your current weighted grade based only on completed work. Enter category scores and weights to see your grade so far in the course.
  • Weighted vs Unweighted GPA Calculator
    Compare weighted and unweighted GPA instantly. Enter your course grade points and honors/AP bonus points to see both averages and the difference.
  • Percentage to Letter Grade Calculator
    Convert a percentage score into a letter grade (A, B, C, D, F) and GPA using the standard 10-point grading scale. Fast and free.
  • Speed, Distance & Time Calculator
    Free Speed, Distance & Time calculator. Solve for speed, distance, or time using d = s × t. Supports km, miles, meters, hours, minutes & seconds.

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