Calculators

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…

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…

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…

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,…

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…

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…

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…

Use the top section to enter two terms and simplify the ratio to its lowest form, or use the bottom section to fill in three…

Enter a positive number, choose a preset base (natural log, common log, or binary log) or enter a custom base, and the calculator instantly computes…

Enter the coefficients a, b, and c of your quadratic equation, and the calculator instantly computes the discriminant to determine whether the roots are real…