Triangle Calculator

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SSS • SAS • ASA • AAS • SSA • Right Triangle • Step-by-step

Enter all three sides

Side a (BC)

Side b (AC)

Side c (AB)

Enter two sides and the included angle

Side a (BC)

Angle β (at B) °

Side c (AB)

Enter two angles and the included side

Angle α (at A) °

Side c (AB, between α&β)

Angle β (at B) °

Enter two angles and a non-included side

Angle α (at A) °

Angle β (at B) °

Side a (BC, opposite α)

Enter two sides and a non-included angle (may have 0, 1, or 2 solutions)

Side a (BC, opposite α)

Side b (AC)

Angle α (at A) °

Enter any two known values (right angle at C = 90°)

Leg a (BC)

Leg b (AC)

Hypotenuse c (AB)

Angle α (at A) °

Angle β (at B) °