Educational

  • MMSE Calculator (Mini-Mental State Examination)
    Free Mini-Mental State Examination (MMSE) calculator. Add up the 7 domain scores to a total out of 30 and see normal, mild or severe impairment categories.
  • APĀ® Psychology Score Calculator
    Estimate your APĀ® Psychology score (1ā€“5) from multiple-choice correct answers and FRQ points using composite-score cut points. US College Board exam.
  • GRE Score Calculator
    Add your GRE Verbal (130ā€“170) and Quant (130ā€“170) scaled scores to get your total GRE score on the 260ā€“340 scale, plus your position in the band.
  • APĀ® Statistics Score Calculator
    Estimate your APĀ® Statistics exam score (1ā€“5) from multiple-choice and free-response points. US College Board exam ā€” uses typical composite cut scores.
  • APĀ® Calculus AB Score Calculator
    Estimate your APĀ® Calculus AB score (1ā€“5) from multiple-choice and free-response points. US College Board exam, based on published composite-score bands.
  • GPA to Percentage Calculator
    Convert your GPA to a percentage on the 4.0 scale. Enter your GPA and scale to instantly get the equivalent percentage grade.
  • Final Exam Impact Calculator
    Calculate your course grade after the final exam. Enter your current grade, expected final score, and final exam weight to see the impact instantly.
  • Pittsburgh Sleep Quality Index (PSQI) Calculator
    Calculate your global Pittsburgh Sleep Quality Index (PSQI) by summing 7 component scores (0-3 each) for a 0-21 total. Scores above 5 suggest poor sleep.
  • Insomnia Severity Index (ISI) Calculator
    Calculate your Insomnia Severity Index (ISI) score by summing 7 items (0ā€“4 each, range 0ā€“28) and get the standard severity interpretation.
  • Words to Pages Calculator
    Convert a word count into an estimated number of pages. Choose single, 1.5, or double spacing to see how many pages your text will fill.
  • Test Score Percentage Calculator
    Convert correct answers out of total questions into a test score percentage instantly. Free, accurate grade calculator for any quiz or exam.
  • Rule of Three Calculator
    Solve proportions fast with the rule of three calculator. Find the unknown x for direct (x=bĀ·c/a) or inverse (x=aĀ·b/c) proportionality.
  • Simplify Fraction Calculator
    Reduce any fraction to its lowest terms instantly. Enter a numerator and denominator to get the simplified fraction, GCD, and decimal value.
  • Heron's Formula Calculator
    Find the area of any triangle from its three side lengths using Heron's formula. Free calculator showing area, semi-perimeter and perimeter instantly.
  • Linear Equation Solver (ax + b = c)
    Solve any linear equation of the form ax + b = c instantly. Enter the coefficients a, b and c to find x = (c āˆ’ b) / a with full steps.
  • Area Model Multiplication Calculator
    Multiply two numbers with the area model (box method). See the partial products ac, ad, bc, bd in a grid and how they sum to the final answer.
  • Multiply Powers with the Same Base Calculator
    Free calculator to multiply powers with the same base using a^m Ɨ a^n = a^(m+n). Add the exponents and get the simplified result instantly.
  • Doubling Calculator
    Double any number instantly. Enter a value and the doubling calculator multiplies it by 2 to show the result, supporting decimals and large numbers.
  • SAT Percentile Calculator
    Estimate your SAT total score percentile (US). Enter a 400ā€“1600 score to see what percent of test-takers you scored higher than, based on national data.
  • NIHSS Stroke Scale Calculator
    Calculate the NIH Stroke Scale (NIHSS) by summing 11 neurological items for a total stroke severity score from 0 to 42 with category.
  • VO2 Max Estimate Calculator (Cooper Test)
    Estimate your VO2 max from the Cooper 12-minute run test. Enter meters covered in 12 minutes to get your aerobic fitness score in mL/kg/min.
  • Cricket Batting Average Calculator
    Calculate a cricket batting average instantly. Enter total runs scored and number of times out to get runs per dismissal, the standard batting metric.
  • Scrabble Word Score Calculator
    Calculate the Scrabble score of any word using standard English letter values, double/triple word multipliers, letter bonuses, and the +50 bingo bonus.
  • 3-Point Percentage Calculator
    Calculate basketball 3-point shooting percentage (3P%) from 3-pointers made and 3-point attempts. Instant, accurate, and free.

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