Least Squares Adjustment Calculator

Least squares adjustment is a method used in surveying and engineering to minimize the sum of the squares of measurement errors. It provides the best estimate of unknown values based on observations.

Enter the observed X and Y coordinates of your points (minimum 2 points) and optional weights. Click “Calculate Adjustment” to get adjusted coordinates and residuals.

Yes, you can extend the calculator logic to handle more points by adding additional input fields. The current version handles up to 3 points for simplicity.

Weights indicate the reliability of observations. Higher weights are given to more accurate measurements. If weights are not provided, equal weighting is assumed.

Yes, this calculator adjusts both X and Y coordinates simultaneously based on least squares principle.

1. Enter observed coordinates (X, Y) for 2-3 points.
2. Optionally enter weights.
3. Click “Calculate Adjustment”.
4. The adjusted coordinates and residuals will be displayed below.