Metes and Bounds Calculator

Calculator Form

Example Data Table

Formula Used

Azimuth conversion: quadrant bearings are converted to clockwise azimuths from north.

Northing change: ΔN = distance × cos(azimuth).

Easting change: ΔE = distance × sin(azimuth).

Closure error: √((ΣΔN)² + (ΣΔE)²).

Area: |Σ(EᵢNᵢ₊₁ − Eᵢ₊₁Nᵢ)| ÷ 2.

Bowditch correction: each correction equals total misclose multiplied by line distance divided by total perimeter.

How to Use This Calculator

1. Enter the starting northing and easting values.
2. Select the distance unit used in your deed or survey note.
3. Enter each call in order with label, bearing, and distance.
4. Use bearings like N 45 30 00 E or numeric azimuths.
5. Press Calculate to show area, perimeter, closure, and adjusted points.
6. Use CSV or PDF export for records and review.

Metes and Bounds Survey Planning

Metes and bounds descriptions turn field calls into a closed land outline. Each call gives a bearing and a distance. The calculator reads those calls and builds coordinates from a chosen starting point. It then estimates perimeter, area, closure error, and closure ratio. These outputs help review deeds, sketches, and early survey notes before formal drafting begins.

Why Closure Matters

A traverse should return to its starting point. Real records often contain rounded bearings, missing seconds, old chain measurements, or typed mistakes. The closure error shows the gap between the computed last point and the first point. A small gap may be acceptable for a sketch. A large gap usually means one call needs review.

Coordinate Method

The tool converts each bearing into an azimuth measured clockwise from north. It then separates every distance into northing and easting parts. Positive northing moves upward. Positive easting moves right. The running sum creates every corner point. This method is useful because it also supports copied deed calls and modern coordinate notes.

Area Review

After coordinates are created, the page applies the shoelace method. This method multiplies crossing coordinate pairs and compares their sums. The result is a signed polygon area. The page reports the absolute value, so clockwise and counterclockwise entry both work. It also converts square feet to acres when feet are selected.

Advanced Adjustment

When the Bowditch option is selected, the closing error is spread across all lines by distance. Longer lines receive larger corrections. Shorter lines receive smaller corrections. This produces adjusted coordinates that close exactly. It does not replace a licensed survey. It gives a practical planning estimate for checking descriptions.

Best Practice

Enter calls in the deed order. Keep bearings consistent. Use seconds when available. Check the example table before adding long descriptions. If the closure ratio is weak, inspect the largest deflection, the longest line, and any reversed quadrant. Save the CSV or PDF report for comparison, notes, and client discussion.

Helpful Review Checks

Compare the sketch against known monuments, road frontage, and adjoining parcels. Note any curve calls separately, because this straight line tool treats every entered call as a chord or segment. Keep original deed wording nearby during review.

FAQs