Magic Number

Making math easier.

Magic Number 2.7

See better

See your calculations clearly.
See math in absolute beauty.
See better results.

Work faster

Enter your math naturally.
Edit as freely as you want.
Nothing gets in your way.

Enjoy math

Do everyday math with joy.
Solve problems with ease.
Sail through everything.

Icon: Eye

See better

Icon: Write

Work faster

Type naturally

Input Entering

You can be super productive too.

You can do everything
from the keyboard.

And you can go faster
with the easy customizations.

Edit freely

You can click.


Input Clicking

Or use

Input Selecting

Of course you can insert

and do more.

Share beautifully

You can copy or export
expressions as PDFs.



These PDFs are scalable,
thus beautiful at any size.

Expression Export 1

For many people, Magic Number
is their handy equation editor.

Icon: Equal

Enjoy math

Everyday math is a joy


Basic EquationFractions


TimeTime Equation


Tax assignTax Calculation


PercentagePercentage Equation

Complex math simplified

Problem solving

Equation with powerEquation with root
Linear EquationEquation: Law of sines

Superior trigonometry

Radians as Fraction of πTrig Reciprocal
Trig SquareAngle in degrees, minutes, seconds

Complex numbers

Complex 1Complex 2

Engineering formats

Format: EngineeringFormat: SI Prefix

Precision + Extreme

Pi in 25 digitsHuge Number

Icon: Gear

Extra hand

Icon: Function


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 (12)

    sum, count, average, maximum, minimum, median, mode, standard deviation, variance, coefficient of variation, geometric mean, harmonic mean, product

  • 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
  • Everything is auto saved
  • History is reusable
  • Global shortcut
  • Easy shortcut customization
  • 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.

20% off
until Oct 4th
$ 7.99  /  7.99 €  /  £ 5.99

Available on the Mac App Store

Featured by Apple:
‘Best New Apps’ in January 2014
‘Back to School’ promotion in September 2014

5-star rating

Average App Store
rating across the world.


 “Fantastic calculator for OS X…
it is incredibly easy to use.”

The Loop


Tweet us if you have any questions.

For quick answers, here is the online help.