Navigation & Route-Planning Calculators
Free, practical tools for finding your way — measure distance and bearing between coordinates, convert between coordinate formats, estimate arrival time and fuel cost for a route, and locate the geographic midpoint.
Distance Between Coordinates (Haversine)
Get the great-circle distance between two latitude/longitude points with the Haversine formula — in kilometres, miles, and nautical miles.
Initial Bearing & Heading Calculator
Find the initial bearing from one coordinate to another — the heading to set off on, in degrees from true north with a 16-point compass direction.
Coordinate Converter (Decimal ↔ DMS)
Convert a coordinate between decimal degrees and degrees-minutes-seconds in both directions, with the right N/S/E/W hemisphere.
ETA & Journey-Time Calculator
Turn a route's distance and your average speed into a journey time — add planned stops and a departure time to see when you'll arrive.
Fuel Cost Calculator for a Route
Estimate the fuel a route needs and its cost from the distance, your economy in mpg or L/100km, and the fuel price.
Geographic Midpoint Calculator
Find the true half-way point along the great-circle route between two coordinates — computed on a sphere, correct at any distance.