Magic Number

Calculate with grace.

A modern calculator

See better

See your calculations clearly.
See the math in true beauty.
See no distractions.

Work faster

Enter naturally as you would
in math. Edit without friction.
Nothing gets in your way.

Enjoy math

Do everyday math with ease.
Tackle hard problems in style.
Feel the empowerment.

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See better

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Work faster

Input: Part 1

Enter naturally

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Go faster
with the clever

Input: Part 2

Edit effortlessly

You can click.


Input Clicking

Or use

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You can also:


Tab to a number

Forget the shortcuts

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Enjoy math

Or enjoy doing it less.

Arithmetic + Percentages


Elementary algebra

Linear EquationPercentage Equation


FractionsFractions and Radians

Trigonometry in depth

Trigonometry 1Trigonometry 2

Complex numbers

Complex 1Complex 2

Precision + Extreme

Pi in 25 digitsHuge Number

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Do more

In a simpler way.

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Over 100.
For age 5 to 105.

  • Arithmetic (6)

    +, –, ×, ÷,
    modulo, quotient

  • Rounding (6)

    round, truncate,
    floor, ceiling,
    integer, fractional part

  • Percentage & Tax (12)

    % change, as % of

    common operations:
    a + b%, a – b%, a × b%

    a inc – b%, a inc × b%

    a + b%^c, a – b%^c,
    a × b%^c

    compound inclusive:
    a inc – b%^c, a inc × b%^c

    More info

  • Roots & Exponents (10)

    √, n√,
    x–1, x2, x3, xY, x1/Y,
    ex, 2x, 10x

  • Logarithm (3)

    loge, log10, log2

  • Angle & Geometry (5)

    convert to radians,
    convert to degrees,
    convert to d° m′ s″,
    hypotenuse, adjacent

  • Trigonometric (12)

    sin, cos, tan,
    sin–1, cos–1, tan–1,
    csc, sec, cot,
    csc–1, sec–1, cot–1

  • Hyperbolic (12)

    sinh, cosh, tanh,
    sinh–1, cosh–1, tanh–1
    csch, sech, coth,
    csch–1, sech–1, coth–1

  • Complex Numbers (6)

    real part, imaginary part,
    argument, absolute value
    conjugate, polar

  • Combinatorics (3)

    Factorial, combinations, permutations

  • Statistical (10)

    sum, count, average, maximum, minimum, median, mode, standard deviation, variance, coefficient of variation

  • Comparison (5)

    max – min,
    max ÷ min, min ÷ max,
    max ∆% min,
    min ∆% max

  • Linear Regression (8)

    Slope, forecast x, forecast y
    x-intercept, y-intercept
    correlation coefficient,
    coefficient of determination,
    standard error of estimate

  • Matrix (4)

    Determinant, inverse, Gaussian elimination, Gauss-Jordan elimination

  • Bitwise Operators (5)

    and, or, exclusive or, nor, not


  • Numeral bases (4)

    Decimal, binary, octal, hexadecimal

  • Numeric formats (6)

    Default decimal,
    fixed decimal places,
    scientific notation,
    engineering notation,
    SI prefix, fraction

  • 25 digits precision
  • 50+ scientific constants
  • 10 variable-like memories
  • 4 customizable tax rates
  • 2 ways to assign them:

    m = 42  or  42 = m

  • Everything is auto saved
  • History’s items are reusable
  • Option to auto copy result
  • Export expression as PDF

Magic Number Icon

For Mac.
OS X 10.7 or later.

English, Deutsch,
Español, Français, Italiano.

See the latest improvements.

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For quick answers, here is the online help.

Available on the Mac App Store

Featured by Apple
in Jan 2014 for ‘Best New Apps’

5-star rating

Average App Store
rating across the world.