Maps, Weather & Transport

Work with locations, climate, transport and logistics.

Map Coordinates & Distance

Geodesic Distance CalculatorMeasure the shortest surface path between two coordinates — distance on the WGS84 ellipsoid, initial and final bearings, and the midpoint.

Environmental & Geographic Reference

Ecological Footprint CalculatorTen quick questions about food, home, travel and shopping become an estimate of how many Earths your lifestyle would need.

Weather, Climate & Atmosphere

Air Density Altitude CalculatorTurn elevation, pressure, temperature and dew point into density altitude, pressure altitude and true air density, with every step shown.

Logistics, Loading & Warehousing

Cargo Volumetric Weight CalculatorWeigh a shipment against its size: per-piece volumetric weight, chargeable weight and density under air, express, road, ocean and US parcel rules.

Vehicle, Rail & Road Transport

Road Trip Fuel Cost CalculatorEstimate the fuel cost of a multi-leg drive from your real fuel economy and the local pump price — with a planning range, per-person share and CO₂.