Free Map Tools
66 interactive tools for finding locations, measuring distances and areas, converting coordinates, looking up the city / country / US state for any lat-lng pair, finding the nearest National Park, generating Google Maps embed code, viewing KML, GeoJSON, and GPX files in the browser with one-click conversion between all three, finding nearby airports and EV chargers, exploring county and demographic data, creating annotated cartographic maps, looking up elevation or time zones, tracking tonight's moon phase, tunnelling through the Earth on twin globes, and mapping Earth's major geographic lines — Equator, Tropics, Polar Circles, Prime Meridian, International Date Line. All tools are free and work in your browser — no sign-up required.
Location Tools
Find which US county you're in using GPS or address
Detect your current city, town, or village
Identify your US state with capital, population, taxes, and demographics
Find your ZIP code plus demographics — income, home values, population, education
Identify your country with flag, ISO codes, currency, and calling code
Measurement Tools
See how far you can drive, bike, or walk in X minutes
Draw a radius circle on a map
Draw shapes to measure area, perimeter, and get cost estimates
Calculate straight-line distance
Distance between two US ZIP codes with population data
Distance between two US cities with map
Find the midpoint to meet in the middle
Straight-line vs driving distance side by side, with detour percentage
Total trip mileage across up to 25 waypoints with optional best-order optimization
N×N pairwise distance matrix between 2-50 points with heatmap, CSV export, and optional driving
Initial, final, rhumb-line, and magnetic bearings with WMM 2025 declination
How far is the horizon? Distance, dip angle, and visible cities by eye height — beach to ISS
Coordinates
Geocode addresses to lat/lng with structured components
Reverse geocode lat/lng to a full address with elevation and time zone
Lat/lng to city name with state, country, and county. Worldwide via OpenStreetMap.
Lat/lng to country name with flag emoji and ISO 3166-1 alpha-2 code. Worldwide.
Lat/lng to US state name with two-letter abbreviation, county, and ZIP code
Find coordinates for any location
Plot coordinates on an interactive map
Convert between DD, DMS, DMM, UTM, MGRS, geohash, Plus Code
Convert UTM northing/easting to latitude/longitude and back
Find the exact opposite point on Earth — country, ocean, distance through Earth
Twin synchronised globes — see exactly where a tunnel through Earth from any city would emerge on the opposite side
Equal-area random point on Earth — anywhere, on land only, or inside any country
Find the centroid of any of 177 countries or 50 US states. Live Turf.js center-of-mass on real boundaries
Map Makers & Cartography
Generate iframe code for a Google Maps embed — place, directions, or custom view. No API key, responsive output.
Draw lines, polygons, freehand, arrows, and text on any base map with real km/mi measurements
Annotate any map with markers, region fills, and a custom auto-generating legend
Click any country, US state, or region to fill it with a color group
Paste county FIPS or names and values, get a national US choropleth across 3,132 counties
Plot a list of US ZIPs as a dot map, heat map, or territory map
Drop up to 100 pins by click, search, or coords — notes, colors, share URL, CSV/GeoJSON/KML export
Plot a CSV of lat/lng on an interactive map — color by category, click for full row
Drag any .kml file onto the map — view Placemarks, lines, polygons, inspect properties, convert to GeoJSON or GPX in one click
Drag any .geojson file onto the map — render every feature, inspect properties, copy bbox, convert to KML or GPX in one click
Drag any .gpx file from Strava, Garmin, AllTrails, or Komoot — view tracks, routes, waypoints, distance, and elevation. Convert to KML or GeoJSON
Drag any country or US state across the world map to see its true size — Mercator distortion-free, with rotation handle
Data Tools
Find all ZIP codes within a distance
Find all cities within a distance
Population plus income, density, and demographics inside any US radius, with CSV export
Find what US county any address, ZIP, or coordinate is in
Interactive US county map with city pins
Explore all 3,143 US counties with data
Locate the 25 closest airports with IATA / ICAO codes, distance, and bearing
Locate the 25 closest EV charging stations with operator, socket type, and max kW
Rank all 63 US National Parks by straight-line distance from any location. State, area, established year, NPS link.
Reference Tools
Find elevation at any point on Earth
Find the time zone for any location
Sunrise, sunset, twilight, golden hour, and day length for any location
Solar azimuth, elevation, and shadow direction with compass rose, sky dome, and golden-hour phase
Compare 2–5 cities live with working-hours overlap and DST detection
Live world terminator + subsolar point. Click anywhere for sunrise, sunset, and current sun phase
Live moon-up boundary + sublunar point + current phase and distance. Click anywhere for moonrise / moonset
Tonight’s phase with illumination % and age, a clickable month grid, and the next 12 major moons. Hemisphere toggle.
Geographic Lines
World map of the Equator with the 13 countries it crosses, entry/exit longitudes, and length per country
Map of the Tropic of Cancer at 23.4394°N — 17 countries, climate zones, June solstice astronomy
Map of the Tropic of Capricorn at -23.4394° — 10 countries, the three southern deserts, December solstice
Map of the Arctic Circle at 66.5606°N — 8 countries, midnight sun, polar night, indigenous peoples
Map of the Antarctic Circle — encircles Antarctica, no sovereign country, research stations, treaty
0° longitude — Greenwich Royal Observatory history, 8 countries, IERS reference offset, time zones
180° meridian + the political zigzag around Kiribati, Samoa, Aleutians; the 21-hour Diomede gap