Math Calculators

  • Distance Calculator

    Distance Calculator

    Choose between 2D (x, y) or 3D (x, y, z) coordinates, enter the coordinates for two points, and the calculator instantly computes the Euclidean distance…

  • Pythagorean Theorem Calculator

    Pythagorean Theorem Calculator

    Choose whether you want to find the hypotenuse (c) or a missing leg (b), enter the known side lengths, and the calculator instantly computes the…

  • Right Triangle Solver

    Right Triangle Solver

    Choose which two values you know (two legs, a leg and the hypotenuse, or a leg and an angle), enter the numbers, and the calculator…

  • Surface Area Calculator

    Surface Area Calculator

    Choose a 3D shape, enter its dimensions, and the calculator instantly displays the surface area, volume, and the formula with your numbers substituted in. MATHMASTERTOOL.ONLINE…

  • Sample Size Calculator

    Sample Size Calculator

    Enter your desired confidence level, margin of error, expected proportion (usually 50%), and optionally your total population size. The calculator instantly computes the recommended sample…

  • Number Sequence Calculator

    Number Sequence Calculator

    Choose a sequence type (arithmetic, geometric, or Fibonacci), enter the first term (and second term for Fibonacci), the common difference or ratio, and the number…

  • Factor Calculator

    Factor Calculator

    Enter any positive integer, and the calculator instantly lists all its factors (divisors) and shows the prime factorization in standard form. Perfect for math homework,…

  • Greatest Common Factor Calculator

    Greatest Common Factor Calculator

    Enter two or more positive integers in the input fields, add or remove numbers as needed, and click Calculate. The calculator instantly computes the greatest…

  • LCM Calculator

    LCM Calculator

    Enter two or more positive integers in the input fields, add or remove numbers as needed, and click Calculate. The calculator instantly finds the least…

  • Root Calculator

    Root Calculator

    Enter a radicand (the number you want the root of) and the root degree (e.g., 2 for square root, 3 for cube root). The calculator…