Educational

  • Prime Number Checker Calculator
    Free prime number checker. Enter any whole number to instantly find out if it is prime or composite, with its smallest factor and divisor count.
  • Inflation-Adjusted College Cost Calculator
    Estimate future college tuition and total program cost after education inflation. Project how much a degree will cost when your child enrolls.
  • SGPA to CGPA Calculator
    Convert your semester SGPAs to CGPA instantly. Enter 2-10 semester grade points to get your cumulative GPA and an approximate percentage.
  • GPA Raise Calculator
    Find out how many credits at a given grade you need to raise your GPA from its current value to a target GPA. Free, instant GPA planning tool.
  • Grade Average Calculator
    Calculate the average of your grade percentages instantly. Enter up to six grades and get the mean, total, and count. Free, fast, and easy to use.
  • SGPA to Percentage Calculator
    Convert SGPA to percentage instantly using the standard VTU / Indian formula: Percentage = (SGPA × 10) − 7.5. Free and accurate.
  • ACFT Plank (PLK) Score Calculator
    Convert your ACFT Plank (PLK) hold time to a 0–100 point score. US Army standard: 0:40 = 60 pts (pass), 3:35 = 100 pts (max).
  • ACFT Sprint-Drag-Carry (SDC) Score Calculator
    Convert your Army Combat Fitness Test Sprint-Drag-Carry time into a 0-100 ACFT point score (US Army). 60 points to pass, 100 at 1:33.
  • ACFT Hand-Release Push-Up (HRP) Score Calculator
    Estimate your ACFT Hand-Release Push-Up (HRP) score for the US Army. Convert reps in 2 minutes to 0-100 points using the standard scale.
  • ACFT Deadlift (MDL) Score Calculator
    Calculate your ACFT 3-rep max deadlift (MDL) score (US Army). 140 lb = 60 pts, 340 lb = 100 pts, interpolated linearly on the 0-100 scale.
  • ACFT Standing Power Throw (SPT) Score Calculator
    Convert your ACFT Standing Power Throw distance (10-lb ball, meters) into a 0-100 point score. US Army fitness test. Min 4.5 m to pass.
  • Reading Level Score Calculator
    Calculate Flesch Reading Ease and Flesch-Kincaid Grade Level from words, sentences, and syllables to measure how readable your text is.
  • SOFA Score Calculator
    Calculate the SOFA (Sequential Organ Failure Assessment) score from 6 organ subscores to gauge organ dysfunction and estimate ICU mortality risk.
  • GPA Score Calculator
    Calculate your GPA on a 4.0 scale. Enter each course's grade points and credit hours to get a credit-weighted grade point average instantly.
  • Multiply Mixed Numbers Calculator
    Multiply two mixed numbers (like 2 1/2 × 1 1/3) instantly. Get the simplified fraction, mixed-number form, and decimal answer with full steps.
  • Days Until My Exam Calculator
    Count the days until your exam with this free study countdown. Enter your exam date to see days, weeks left, and total planned study hours.
  • Decimal Multiplication Calculator
    Multiply two decimal numbers instantly. See the product plus how the decimal places add up (places in a + places in b = places in product).
  • Multiplication Calculator
    Multiply two numbers instantly with this free multiplication calculator. Enter any two values (a and b) and get the exact product, with decimals supported.
  • 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.
  • Combination Calculator (nCr)
    Calculate combinations without repetition (nCr) instantly. Enter n and r to find how many ways you can choose r items from n where order does not matter.
  • 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.
  • 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.
  • Circumference of a Circle Calculator
    Calculate the circumference of a circle from radius or diameter using C = 2πr = πd. Get circumference, diameter, and area instantly with worked examples.
  • Field Goal Percentage Calculator
    Calculate basketball field goal percentage (FG%) instantly. Enter field goals made and attempted to get shooting efficiency as a percentage.

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