GIS & Mapping Tools & Calculators
Free, practical tools for geospatial work — convert coordinates, measure distance and bearing, work out map scale, switch area units, and judge GPS precision, all in the browser.
Coordinate Converter
Convert a latitude or longitude between decimal degrees and degrees/minutes/seconds — the notation switch every GIS import, survey note, and nautical chart demands
Distance Calculator
Get the great-circle (haversine) distance between two latitude/longitude points in kilometres, miles, and nautical miles — the geodesic measurement behind proximity analysis and routing
Bearing Calculator
Find the initial great-circle bearing from one point to another in degrees from true north, plus the 16-point compass direction — for navigation, aiming, and directional queries
Map Scale Calculator
Turn a distance measured on a map into the real ground distance using the map's representative fraction (e.g. 1:25,000) — results in centimetres, metres, and kilometres
Area Unit Converter
Convert land and area figures between square metres, hectares, acres, square kilometres, and square miles — normalise parcel and polygon areas from any source
GPS Precision Calculator
See how much ground distance each decimal place of a coordinate resolves to at the equator — store the right precision in your geodata without padding it with noise