Kalkules Scientific Calculator

Free scientific calculator which saves you time and frustration by providing unique easy to use tools.


  • Complex math expressions with parenthesis, variables, constants and functions
  • Real numbers
  • Complex numbers
  • Residue classes modulo n
  • Fractions (real or complex)
  • Calculations available in four numeral systems: binary, octal, decimal, hexadecimal
  • Numeral system conversions (including decimal numbers)
  • Wide range of arithmetic, goniometric and hyperboli functions
  • Function graphs with multiple functions in same graph
  • Function differentiation
  • Polynomials + Horner scheme
  • Unit conversion
  • Statistics
  • Combinatorics
  • Series summation
  • Series product
  • Quadratic equations
  • Rule of three
  • Expression libraries - find and use common math formulas
  • Translated into 15 languages