Triangle Calculator

Contains ads
4.0
6.67K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Learn more
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About this app

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).

1 Million downloads!

Paid ad-free version also available.

Found a translation error or want to help with a new translation? Please contact us through email.
Updated on
Dec 20, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
This app may collect these data types
App info and performance and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.9
6.35K reviews
Toby Maloy
April 23, 2026
This app will do what you need it to do, but it's dumber than a brick which requires the user to outsmart it. All the one star reviews didn't succeed at outsmarting the app's input glitches. Seems like it was created as a 6th grade school project and nobody cleared out the bugs. 3 star is generous.
1 person found this review helpful
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Daniel Holland
August 26, 2022
I've tried 3 angle finding apps prior finding this one. They all annoyed me with all adds on filling the screenc or having to keep scrolling down to remember which letter corresponds to which letter when typing in the dims. This one has none of those issues and just does what it is supposed to. Thanks guys
47 people found this review helpful
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Jrnayr Lauscap
March 20, 2025
Very helpful!!! I recommend this app for those students who are struggling in finding the measurements of a triangle. My teacher recommended this app, it's really a life changing app
4 people found this review helpful
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What’s new

Android update. Minor bug fixes.