Coordinate Converter
Convert latitude and longitude between decimal degrees, DMS, and geohash instantly. Free, precise coordinate conversion that runs privately…
Free GIS, GPS, Maps & Geospatial Tools
Convert coordinates, measure distances, decode geohashes and explore the math behind maps — every tool runs instantly in your browser, free forever.
10+Free tools
6Categories
100%Free forever
Browse by Category
Every tool is organized into focused collections so you can find the right calculator in seconds.
Converters
Translate between coordinate systems and spatial encodings — UTM, geohash, WKT and beyond.
2 toolsCoordinates
Convert, validate and work with latitude and longitude in every common format — decimal degrees, DMS, geohash and more.
1 toolsDistance & Measurement
Measure distances, areas and perimeters on the Earth's surface with survey-grade formulas.
3 toolsGenerators
Generate random coordinates, test datasets and sample geometries for development and QA.
1 toolsMapping Math
Core geospatial mathematics: bearings, midpoints, buffers and bounding boxes, computed in your browser.
2 toolsSolar & Time
Sunrise, sunset, solar noon and day length for any location on Earth and any date.
1 toolsPopular Tools
The calculators our visitors reach for most often.
Distance Calculator
Measure great-circle distance between any two coordinates with the haversine formula. Free online distance calculator — instant, accurate,…
Geohash Encoder & Decoder
Encode GPS coordinates into geohash strings or decode any geohash back to latitude and longitude. Free base-32 tool…
UTM Converter
Convert latitude and longitude to UTM coordinates and back instantly. Free WGS84 converter with automatic zone detection for…
Sunrise & Sunset Calculator
Get exact sunrise, sunset, twilight, and solar noon times for any location and date. Free solar calculator with…
Polygon Area Calculator
Calculate the area of any polygon from its corner coordinates. Free area calculator using the equirectangular projection —…
Bearing Calculator
Find the initial bearing between two GPS coordinates in degrees. Free bearing calculator for navigation, surveying, and antenna…
Midpoint Calculator
Find the geographic midpoint between two coordinates instantly. Free midpoint calculator for meeting points, logistics, and travel —…
Latest Tools
Fresh additions to the collection.
Circle Radius Calculator
Enter a centre point and radius to get circle area, circumference, and a bounding box. Free geofence and…
Random Coordinate Generator
Generate random latitude and longitude points inside any bounding box or radius. Free tool for testing apps, sampling…
UTM Converter
Convert latitude and longitude to UTM coordinates and back instantly. Free WGS84 converter with automatic zone detection for…
Sunrise & Sunset Calculator
Get exact sunrise, sunset, twilight, and solar noon times for any location and date. Free solar calculator with…
Geohash Encoder & Decoder
Encode GPS coordinates into geohash strings or decode any geohash back to latitude and longitude. Free base-32 tool…
Polygon Area Calculator
Calculate the area of any polygon from its corner coordinates. Free area calculator using the equirectangular projection —…
Midpoint Calculator
Find the geographic midpoint between two coordinates instantly. Free midpoint calculator for meeting points, logistics, and travel —…
Bearing Calculator
Find the initial bearing between two GPS coordinates in degrees. Free bearing calculator for navigation, surveying, and antenna…
How It Works
From question to answer in three quick steps.
1
Find your tool
Search or browse categories to find the exact calculator or converter you need.
2
Enter your data
Type coordinates, paste a polygon or pick a date — everything is validated as you type.
3
Get instant results
Results appear immediately, computed privately in your browser with documented formulas.
Latest Articles
Guides and explainers from the learning center.
Articles are on the way — check back soon.
Frequently Asked Questions
Is NextGeoTools really free?
Yes. Every tool on NextGeoTools is free to use with no account, no trial limits and no hidden paywalls. The tools run entirely in your browser, which keeps our operating costs low enough to offer the full collection free of charge.
Do I need to install anything or create an account?
No. All tools work directly in any modern web browser on desktop or mobile. There is nothing to download, install or sign up for — open a tool page, enter your data and get results instantly.
Are my coordinates sent to your servers?
No. Every calculation happens locally in your browser using JavaScript. The coordinates, addresses and measurements you enter never leave your device, so your location data stays completely private.
How accurate are the calculations?
Our tools implement well-known published formulas — for example the haversine formula for distances and standard transverse Mercator mathematics for UTM conversion. They are accurate for everyday, educational and development use, but they model the Earth as a smooth ellipsoid, so always verify with professional survey equipment for legal, engineering or safety-critical work.
Can I use the tools on my phone?
Absolutely. The entire site is mobile-first and responsive. Tool inputs, results tables and guides are all designed to work comfortably on small screens, which makes the tools handy for field work.
How often are new tools added?
We are building toward a library of more than 1,300 specialized geo tools, with new calculators, converters and guides published on a regular schedule. If there is a tool you need that we do not have yet, tell us through the contact page — reader requests shape our roadmap.
Start exploring the world, one coordinate at a time
From quick conversions to full geospatial workflows, every tool is free, private and ready in your browser right now.
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