Geo Tools

Work with geographic data: convert formats, validate coordinates, calculate distances, and process spatial data—fast, accurate, and private.

17 tools available

Calculators 1

Math Calculators 1

Haversine calculator

Compute great-circle distance between two latitude/longitude points using the haversine formula. Explains spherical vs flat-Earth distance, accuracy, bearing, and code.

Geography & Mapping Tools 14

Area & Perimeter

Free area and perimeter calculator: calculate polygon area, perimeter, and centroid from GPS coordinates. Get results in multiple units instantly.

Route Distance

Free route distance calculator: calculate total distance for multi-point routes. Get segment distances and total trip distance for GPS waypoints instantly.

Reverse Geocoder

Free reverse geocoder: convert GPS coordinates (latitude/longitude) to street addresses. Get detailed location information from coordinates instantly.

Address Geocoder

Free address geocoder: convert any address to GPS coordinates (latitude/longitude). Get precise location data from street addresses, places, and landmarks instantly.

Geometry Tools

Free GIS geometry tools: create buffer zones, simplify geometries with Douglas-Peucker, clip by bounding box or polygon. Process GeoJSON/WKT data instantly.

Polygon Calculator

Free polygon calculator: calculate area, perimeter, and centroid of any polygon. Draw on map, import GeoJSON/WKT, get results in multiple units instantly.

WKT GeoJSON Converter

Free WKT GeoJSON converter: convert between Well-Known Text (WKT) and GeoJSON formats online. Validate, edit and visualize geometric data instantly.

Geohash Encoder Decoder

Free Geohash tool: encode/decode geohash codes, view grid cells with real cell size, find 8 neighbors, copy 9-cell CSV for proximity queries. Use my location.

Plus Codes

Free Plus Codes tool: encode/decode Open Location Codes, shorten codes with reference location, recover full codes. Google Plus Codes converter for addresses.

UTM / MGRS Converter

Free UTM MGRS converter: convert between Latitude/Longitude, UTM, and MGRS coordinates. Batch conversion from CSV/TXT files. Military grid reference system.

CSV to GeoJSON

Free CSV to GeoJSON converter. Transform CSV files with latitude, longitude coordinates to GeoJSON. Supports custom column mapping and properties.

Carbon Footprint Calculator

Free personal carbon footprint calculator. Track tCO₂e/year from transport, home energy, diet & shopping. EPA + DEFRA emission factors. 15 country baselines.

GeoJSON Validator

Free GeoJSON validator and repair tool. Validate GeoJSON syntax, detect errors, and automatically fix common issues like duplicate coordinates and empty properties.

KML/GPX Converter

Free online KML, GPX to GeoJSON converter. Convert GPS tracks, waypoints, routes between KML, GPX, and GeoJSON formats with style preservation.

Time Tools 2

Equinox & Solstice

Find exact UTC dates and times of equinoxes (Mar, Sep) and solstices (Jun, Dec) from 1900 to 2100. Auto-converts to your local timezone with sun coordinates.

Sun Path

Visualize sun path and find golden hour times for photography. Interactive chart shows sun position, altitude, azimuth throughout the day. Perfect for photographers.