Survey Calculations
Interactive templates for common survey calculations
Area Calculation
Area = ½ Σ(X
i
Y
i+1
- X
i+1
Y
i
)
Point Format
X,Y Coordinates
Bearing & Distance
Units
Square Feet
Acres
Hectares
Add Point
Results
-
Perimeter: -
Traverse Adjustment
Angular Error = Σ measured angles - [(n-2) × 180°]
Starting Coordinates
Adjustment Method
Compass Rule
Transit Rule
Crandall
Add Traverse Leg
Closure Results
Angular Error: -
Linear Error: -
Precision: -
Curve Calculator
R = 50 * C / Δ where:
R = Radius
C = Chord Length
Δ = Delta Angle
Known Elements (select at least 3)
Radius
Delta
Length
Tangent
Chord
Calculate Curve Elements
Curve Elements
Radius (R)
-
Delta (Δ)
-
Length (L)
-
Tangent (T)
-
Chord (C)
-
External (E)
-
Quick Reference
Area Conversion Factors
1 acre = 43,560 sq ft
1 hectare = 2.471 acres
1 sq mile = 640 acres
Angular Conversions
1° = 60 minutes
1' = 60 seconds
1 radian = 57.2958°
Common Formulas
Radius = 50 * Chord / sin(Δ/2)
Tangent = Radius * tan(Δ/2)
Arc Length = Radius * Δ(in radians)
Tips
• Always check your units before calculation
• Consider precision requirements
• Verify closure for critical boundaries
• Double-check angle directions