Triangle Calculator Pro

November31

About this app

Ad free version!

Solve triangles by entering two sides and one angle, two angles and one side or three sides to find remaining values as used in trigonometry.

Angles are available in degrees, radians, grads or degrees with minutes and seconds.

The ▲² button shows second solution if one exists (ambiguous case).

The free version has over 1 million downloads!

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Ratings and reviews

Simple to use, accurate, and easy to configure. Works great for construction, site surveying, etc. Just choose between right triangle or isosceles triangle, then fill in the known values, hit the calculate button and the results are given. To set the calculator outputs, hit the three dots at the top of the screen. Precision: how many digits output (0, 1, 2, 3, 4, or 5). Angle Units: (decimal degrees, rad, grad, deg-min-sec).

Love this thing!!! This app is incredibly useful, and precise more than enough for roof design and construction, and construction in general. Thank you !

Hi All. I needed to work out metal sizes for some adjustable solar panel brackets. This app made it easy, thanks. I would like the result to display the formula "for an added feature" if that would be possible, to help my old brain cells remember how I used to do calculations like this. 👍😃

What's new

minor bug fix, changed icon, updated to Android API 33