Magic Number

Making math easier.

Magic Number 2.7

What’s New:  Updated for macOS Sonoma. Optimized for Apple Silicon.

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

Be super productive.

Do everything from the keyboard.
Do it fast with the easy customizations.

Edit freely

You can click.


Input Clicking

Or use

Input Arrow

You can also insert

 and do much more.

Share beautifully

You can copy or export
expressions as PDFs.



These PDFs are scalable;
they are beautiful at any size.

Expression Export 1

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

Icon: Equal

Enjoy math

Everyday math is easier.


Basic EquationFractions


TimeTime Equation


Date after some daysDuration between 2 dates


Tax assignTax Calculation


PercentagePercentage Equation

Hard math is no longer hard.

Problem solving

Equation with powerEquation with root
Linear EquationEquation: Law of sines
Quadratic EquationCubic Equation

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 + Capacity

Pi in 25 digitsHuge Number

Icon: Gear

Extra helpful

Icon: Function


Over 100 — for age 5 to 105.

  • Arithmetic (6)

    +, –, ×, ÷,
    modulo, quotient

  • Percentage & Tax (11)

    3 types of operations:

    a + b%, a – b%, a × b%

    For compound interest.

    For finding the original amount from an amount inclusive of %.

    Other functions include ‘% change’ and ‘as % of’

    Learn more

  • Date & Time (10)

    4 types of operation:
    Day of the week from date,
    duration between two dates,
    date after some days,
    date befor some days.

    6 conversion functions.
    Native arithmetic and percentage operations.
    Custom frame rate for timecode calculations.

  • Roots & Exponents (10)

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

  • Logarithm (4)

    loge, log10, log2,
    log(base, x)

  • Angle & Geometry (11)

    convert to radians,
    convert to degrees,
    convert to d° m′ s″,
    hypotenuse, adjacent,
    distance between 2 points,
    equation of a line,
    magnitude of vector,
    angle between 2 vectors,
    scalar product,
    vector product

    Learn more

  • 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 (7)

    real part, imaginary part,
    argument, absolute value,
    conjugate, convert to polar, convert to rectangular

    Plus easy ways to exploit complex numbers as 2D vectors. Learn more

  • Rounding (6)

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

  • 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

  • Combinatorics (6)

    Combinations, permutations, factorial, double factorial, subfactorial, gamma function

  • Bitwise Operators (10)

    and, or, exclusive or,
    nand, nor, xnor, not, 2’s complement, <<, >>


  • Numeral bases (4)

    Decimal, binary, octal, hexadecimal

  • Numeric formats (7)

    General, significant digits,
    fixed decimal places,
    scientific notation,
    engineering notation,
    metric prefix, fraction

  • 25 digits precision
  • 50+ scientific constants
  • 10 variable-like memories
  • 4 customizable tax rates
  • Reuse history anytime
  • PDF export
  • Menubar app mode
  • Global shortcut
  • Shortcut customization
  • Touch Bar support

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Many happy users

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

The Loop

“By far the most flexible and useful calculator
I have on either my Mac or iOS devices.”

KeithRT, USA

“This is to calculators
what the iPhone was to cell phones.”

ArtMonster, USA

“It really is strangely joyful to use…
it just gets the job done without any hesitation,
learning curve, or stupid workarounds.”

Ksnyde, USA

“ 真的是我用過所有計算器裡面最棒的 ! ”

雪齋, China

“Die Referenz in Sachen Taschenrechner-App.”

BjoernImNetz, Germany

“This is the kind of app that makes me wish
I had even more reason to use it!”

DavidStevens, UK

“It really helped me get my head around my maths homework
by helping me perform calculations in a more visual and
intuitive way than other scientific calculators…”

Culturion, UK

“It’s not magic, it’s what
calculator apps should have been.”

JayWang, Australia

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.

Lovingly updated since 2010.

Magic Number Icon

For Mac.
macOS 10.11 or later.

English, Deutsch,
Español, Français, Italiano.
中文, Русский

$ 7.99  /  7.99 €  /  £ 5.99

Available on the Mac App Store

(Price may vary due to exchange rates.
Sales tax may apply in your country.)