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  • Average Calculator
    Enter numbers separated by commas to get the average, sum, count, median, geometric mean, minimum, maximum, and range—instant results.
  • Wavelength Calculator
    Calculate wavelength, velocity, or frequency with this versatile wavelength calculator. Input known values and select the parameter to solve for. Easily convert between wavelength, velocity, and frequency in meters, meters per second, and Hertz.
  • Law of Sines Calculator
    Solve a triangle with the Law of Sines: find a missing angle or side, then get all sides, all angles, perimeter, area, inradius and circumradius.
  • IV Drip Rate Calculator
    Calculate IV infusion drip rate in drops per minute and seconds per drop from fluid volume, infusion time or hourly rate, and the drop-set factor (20 or 60 gtt/mL).
  • Displacement Calculator
    Calculate displacement in kinematics with this versatile calculator. Input initial velocity, final velocity, and time to determine displacement. Easily switch between displacement, velocity, and time calculations for comprehensive kinematic analysis.
  • Character Counter
    Easily count the number of characters, words, and lines in your text with this free online character counter tool. Perfect for writers, students, and professionals who need to track text length.
  • Aspect Ratio Calculator
    Aspect Ratio Calculator - Calculate the aspect ratio easily. Enter the width and height to get the precise aspect ratio for your images or videos instantly.
  • LCM Calculator
    Calculate the Least Common Multiple (LCM) with this LCM calculator. Input numbers separated by commas to find the smallest positive integer divisible by all given numbers.
  • Factoring Calculator
    Find all factors of any integer, list every factor pair, get the prime factorization, and see whether the number is prime or composite.
  • Pace Converter
    Calculate and convert pace with this versatile Pace Converter. Transform time units between per mile, per kilometer, mph, km/h, m/min, m/s, yd/min, and yd/s for accurate running and speed analysis.
  • Fraction Calculator
    Enter two fractions (numerator and denominator), pick +, −, ×, or ÷, and get the result as a fraction and decimal instantly.
  • Hijri Date Converter
    Enter a Gregorian date to convert to the Islamic (Hijri) calendar and instantly see the Hijri date, year, month, and day.

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