Horizon Distance Calculator
Enter eye height above a clear, level surface to estimate the geometric horizon. Compare line-of-sight and surface distances without atmospheric refraction.
Continue with this point
The current-location finder connects a point to its city, county, ZIP area and time zone. Elevation accuracy explains terrain and device heights; IP versus GPS explains why location methods differ.
What Plant Hardiness Zone Am I In?Find the USDA 2023 plant hardiness classification listed for a US ZIP code. See the winter minimum temperature range and what a ZIP result cannot tell you.Bearing CalculatorCalculate initial, final and constant-course bearings between two coordinates. Compare the directions relative to true north.Antipode FinderFind the opposite point on Earth from a latitude and longitude. Copy its coordinates or open the point on a map.How Fast Am I Going?See device-reported speed in miles per hour and kilometers per hour, with fix time and accuracy. Missing speed stays unavailable.Share My LocationChoose a location, check its accuracy, then copy coordinates or share a map link once. No live tracking or saved location history.Track My LocationStart and stop a live view of your own device position. See coordinates, accuracy, speed and heading when your device supplies them.Coordinate ConverterConvert latitude and longitude to decimal degrees, DMS, DMM, UTM, MGRS, geohash and Plus Code. Copy each format locally.Distance from My LocationCompare two coordinates and calculate their straight-line surface distance in miles and kilometers. This is not a road route.Radius MapEnter a coordinate and radius to draw a distance circle and see its north, south, east and west points. Distances follow a spherical Earth.Midpoint CalculatorFind the geographic midpoint between two coordinates and open it on a map. A geographic midpoint is not a driving halfway point.Elevation ProfileChoose two US coordinates and request sampled USGS ground heights between them. Compare terrain in feet and meters with source resolution.Topographic MapEnter US coordinates to view the USGS topographic tile around that point. Inspect contour and terrain context, then open the official map.Time Zone ConverterConvert a date and local time between IANA time zones. Detect times skipped or repeated during daylight-saving clock changes.