Triangulation Calculator

Triangulation Calculator

Find the target position from two observer angles and a baseline using the Law of Sines.

Last updated: June 2026 | By Patchworkr Team

Baseline + two angles
This assumes the target lies on the same side of the baseline as the positive y direction.
Target coordinates
Enter values to calculate

Formula

angle C = 180 - A - B

dist from A = d * sin(B) / sin(C)

x = dist from A * cos(A), y = dist from A * sin(A)

Assumption

The baseline runs from A to B along the x-axis, with A at the origin and the target positioned above the baseline.

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