Survey Calculator
A growing collection of professional surveying computation tools. Select a calculation below to open its dedicated workspace.
Survey GIS, computation and professional fee tools
Use the interactive GIS workspace for spatial survey tasks, choose a dedicated calculator for field computations, or estimate professional survey fees from the configured schedule.
Survey Calculations
Core field, geometric and engineering survey computation tools.
Bearing & Distance Calculations
Calculate bearings and distances from coordinates, convert bearing formats, determine back bearings and included angles.
Open calculator →Coordinate Calculations
Work with Eastings, Northings, coordinate increments and point positions.
Open calculator →Area Calculations
Calculate parcel and traverse areas using coordinate and surveying methods.
Open calculator →Traverse Calculations
Prepare closed and open traverse computation workflows and observations.
Open calculator →Slope & Gradient
Work with gradients, slope ratios, slope percentages and vertical differences.
Open calculator →Levelling Calculations
Compute reduced levels using Height of Instrument and Rise & Fall methods.
Open calculator →Circular Curves
Calculate tangent, chord, arc, deflection and other simple circular-curve elements.
Open calculator →Intersection Calculations
Set up bearing-bearing, bearing-distance and distance-distance intersections.
Open calculator →Resection Calculations
Plan point resection computations from known control points and observations.
Open calculator →Trilateration
Compute positions from measured distances to known control points.
Open calculator →Offset Calculations
Set up perpendicular and oblique offset computations for survey lines.
Open calculator →Height & Distance
Solve surveying height-and-distance problems from angles and measured distances.
Open calculator →Earthwork Calculations
Prepare cut, fill, volume and earthwork computation workflows.
Open calculator →Level Book / Booking
Organize levelling observations and arithmetic checks in a digital workflow.
Open calculator →Traverse & Adjustment
Tools for traverse closure, error distribution and adjustment workflows.
Coordinates & Mapping
Coordinate systems, angular formats, projections and national grid tools.
Interactive GIS Survey Map
Plot survey points, calculate plot area, measure distance, search locations by address, and import survey data directly on an interactive map.
Open GIS map →Coordinate Transformation
Prepare coordinate transformation calculations between reference systems.
Open calculator →DMS & Angle Conversion
Convert between decimal degrees, degrees-minutes-seconds and radians.
Open calculator →Latitude & Departure
Compute latitude, departure and related traverse components from observations.
Open calculator →Unit Conversions
Convert common surveying units including metres, feet, chains, links, acres and hectares.
Open calculator →UTM & Projection Conversion
Convert between latitude/longitude, UTM, Transverse Mercator, Web Mercator, Lambert Conformal Conic and Albers Equal Area coordinates.
Open calculator →Nigerian National Grid ↔ UTM / WGS84
Convert Nigerian National Grid (Minna datum) coordinates to and from WGS84 latitude/longitude and UTM, with West, Mid and East belts.
Open calculator →Survey & Project Estimation
Professional fee and project estimation tools for surveying work.