Surveying, Coordinates, GIS & CAD Calculators

Survey reductions, coordinate conversions, geodesy, drone and GIS tools.

170 tools · 100% Free · Works Offline

Surveying student study hubStudying surveying? A study hub groups these tools by the topics you'll cover.

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Popular Calculators

DMS to Decimal Degrees ConverterConverts coordinates between degrees-minutes-seconds and decimal degrees.

Bearing Mean Circular Statistics CalculatorAverages compass bearings using circular statistics, reporting the mean whole-circle direction,…

Circular Curve Elements CalculatorComputes horizontal road curve elements like tangent length, long chord, mid-ordinate and…

Circular Curve Set-Out Table GeneratorGenerates a full deflection-angle set-out table for a circular road curve — PC/PT chainages,…

All Surveying, Coordinates, GIS & CAD Calculators (170)

Guide to Surveying Calculators

This hub covers the daily maths and file work of land, engineering and mine surveyors: reducing traverse and levelling runs, converting coordinates between formats and grids, running geodetic distance and scale-factor calculations, planning drone and photogrammetry missions, and building the QA checklists and field sheets that keep a job auditable.

Convert between coordinate formats and grids

Start with a format converter (DD/DMS/DDM) when you only need to reshape a lat/long; jump to a projected-grid or UTM converter when moving between a national mapping grid and geographic coordinates, and use the validator first if you are unsure the input is even well-formed.

DDM to DMS Converter DMS to Decimal Degrees Converter Latitude/Longitude Validator (Range & Format)Lat/Long to UTM Converter (WGS84)UTM to Lat/Long Converter British National Grid (OSGB36) Converter MGA2020 / GDA2020 Converter (Australia)Signed vs Cardinal Coordinate Notation Converter

Geodesy, datums and scale factors

Reach for Vincenty or the great-circle/rhumb comparison when distance accuracy over long lines matters; use the scale-factor and grid-convergence tools when tying survey ground distances to a projection, and the height and datum-shift converters when working with GNSS or 3D reference frames.

Vincenty Ellipsoidal Distance Calculator Great-Circle vs Rhumb Line Distance Comparison UTM Scale Factor Calculator Combined Scale Factor Helper Grid Convergence Angle Calculator MGA94 to MGA2020 Coordinate Converter Ellipsoidal to Orthometric Height Converter Datum Shift Magnitude Calculator

Traverse, COGO and levelling reductions

Use the misclose and closure-ratio tools to check whether a traverse meets tolerance before adjusting it with Bowditch or comparing Compass vs Transit rules; the rise-and-fall, height-of-collimation and loop-allocation worksheets cover levelling runs and their corrections.

Traverse Misclose Calculator Traverse Closure Ratio Calculator Bowditch Adjustment Calculator Compass Rule vs Transit Rule Comparison Rise and Fall Levelling Worksheet Height of Collimation Worksheet Closed Level Loop Adjustment Allocator Latitudes and Departures Tutor

Coordinate geometry and set-out

Use bearing-and-distance tools to compute new points or reverse-engineer an inversed join; intersection and resection solvers fix a point from observed lines; the offset, chainage and batter-peg tools drive on-site set-out.

Bearing & Distance to Coordinates Calculator Coordinates to Bearing & Distance Calculator Intersection by Bearings Solver Intersection by Distances Solver Interlocking Resection Calculator Station Chainage & Offset Calculator Batter Peg Reduced Level Calculator Building Corner Diagonal Check

Drone, photogrammetry and imagery

Plan a flight with GSD, altitude, overlap and line-spacing calculators, size the mission with image-count and ground-control tools, then QA the outputs against the orthomosaic and mission checklists before delivery.

Drone GSD Calculator Flight Altitude from GSD Calculator Photo Overlap Calculator Drone Flight Line Spacing Calculator Drone Image Count Calculator Ground Control Density Calculator Photogrammetry Mission QA Checklist Orthomosaic Deliverable Checklist

Data, drafting and job QA

Clean and check point lists and CSVs before import, then run the plan, CAD-layer, GIS-export and CRS checklists so a deliverable is consistent and complete before it leaves the office.

Survey CSV Cleaner Point List Duplicate and Gap Checker Point Code Parser Survey Plan Submission QA Sheet CAD Layer Naming Checklist GIS Export QA Checklist CRS Job Setup Checklist Survey Plan Title Block Checklist

Important calculation notice

These calculators are intended for education, estimation and preliminary checks. Verify all inputs, units, assumptions, material properties and applicable standards. Safety-critical or final engineering designs should be checked by a suitably qualified professional.

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Surveying, Coordinates, GIS & CAD Calculators

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All Surveying, Coordinates, GIS & CAD Calculators (170)

Coordinate Systems & Datums37 calculators

Levelling & Traverse20 calculators

Coordinate Geometry & COGO27 calculators

Set-Out & Earthworks18 calculators

GNSS, GIS & Cartography9 calculators

Drone & Photogrammetry14 calculators

CAD, Drafting & Mine Surveying9 calculators

Survey Data & QA29 calculators

Field Safety7 calculators

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