Free tools
Free survey and data tools
Small tools for jobs that come up every week. They run in your browser, need no sign-up and nothing you enter is uploaded. Each page states its method and limits. They are conveniences, not survey deliverables.
Brimbank Maps
Council parks, playgrounds, libraries, schools and more, with Vicmap planning zones and overlays. Works on your phone.
GDA94 to GDA2020 converter
Convert points between GDA94 and GDA2020 as lat/long or MGA grid. Checked against the official transformation.
Coordinate inverse calculator
Distance, bearing and height difference between two points.
Bearing and angle converter
Decimal degrees, DMS, DD.MMSS, quadrant bearings, gradians.
Area and perimeter from coordinates
Area, perimeter and centroid of a polygon from a point list.
Horizontal curve calculator
Radius, angle, arc, chord, tangent, mid-ordinate and external.
Slope and grade converter
Percent, degrees, ratio and per mille, with rise and run.
Survey unit converter
Metres, feet, US survey feet, chains, links, rods, acres, perches.
Earthworks volume from cross-sections
Average end area cut and fill, with swell and shrink.
Duplicate point finder
Find repeated point IDs and coincident points in a point list.