Compare sizes by dragging them on a map. Adjust positions to see size changes based on distance from the equator. Search or tap to select countries. View distortions caused by flat map projections.
Calculate coordinates and grid squares for projects
Offers calculators for designing radios and antennas. Users can find latitude and longitude from a maidenhead square or vice versa. Calculate distances between squares. Convert units. Locate current position.
Allows users to create chemical process models using a touch-enabled PFD drawing interface. It supports offline operation and performs VLE/VLLE/SVLE/SVLLE calculations with equation of state and activity coefficient methods.
Control a by starting, pausing, and sending it back home. View real-time location via live map. Schedule cleaning tasks and review job history for completed tasks.
Offers 97 calculators and 28 converters for , civil engineering, and structural engineering. Users can calculate pressure, forces, and absolute pressure. Switch between USCS and SI units.
Study for CDL exams with , topic-based quizzes, and downloadable driver manuals. Take mock to simulate real exam conditions and review results. Track progress and prepare for DMV exams with up-to-date questions.
Convert units across , engineering, and everyday categories. Perform calculations with built-in formulas. Save frequently used conversions. Toggle dark mode. Switch between languages. Provide feedback for improvements.
Customize firearms and ammunition with adjustable properties. Select ranges and simulate internal and external ballistics. Track weapon and ammo details procedurally generated. Aim and shoot at targets with realistic physics.