WGS84 to UTM Converter
About WGS84 Coordinate System
WGS84 (World Geodetic System 1984) is the global standard geodetic reference system used by GPS. It defines an Earth-centered, Earth-fixed coordinate system and geodetic datum.
Developed by the U.S. Department of Defense in 1984, WGS84 has undergone several refinements (WGS84(G730), WGS84(G873), WGS84(G1150), WGS84(G1762)) to improve accuracy through GPS satellite observations.
WGS84 is the default coordinate system for GPS receivers worldwide. It is used in aviation, maritime navigation, Google Maps, OpenStreetMap, GIS applications, and scientific research.
WGS84 is the native coordinate system of the Global Positioning System (GPS), ensuring direct compatibility with all GPS receivers and satellite navigation systems worldwide.
As the most widely adopted geodetic datum, WGS84 provides a consistent global reference frame for mapping, surveying, and geospatial data exchange across international boundaries.
With continuous refinements, WGS84 achieves centimeter-level accuracy globally, making it suitable for high-precision applications like surveying, drone navigation, and scientific research.
About UTM Coordinate System
UTM (Universal Transverse Mercator) is a map projection system that divides the Earth into 60 zones, each 6 degrees of longitude wide.
The UTM system was developed by the U.S. Army Corps of Engineers in the 1940s and later adopted by NATO.
UTM is widely used in topographic mapping, military operations, emergency services, land management, forestry, and environmental monitoring.
The Earth is divided into 60 north-south zones, each spanning 6 degrees of longitude.
UTM uses meters as its unit of measurement, with easting and northing coordinates.
Each zone limits distortion to less than 0.1% within the zone boundaries.
WGS84 → UTM Conversion Guide
// WGS84 → UTM (Universal Transverse Mercator)
// Zone calculation:
zoneNum = floor((lon + 180) / 6) + 1
// Transverse Mercator projection:
λ₀ = central meridian of zone (radians)
φ = latitude, λ = longitude (radians)
k₀ = 0.9996 (scale factor)
N = a / √(1 - e² × sin²(φ))
T = tan²(φ)
C = e² × cos²(φ) / (1 - e²)
A = cos(φ) × (λ - λ₀)
// Easting and Northing calculations follow standard TM formulasUTM divides the Earth into 60 zones of 6° longitude each. The Transverse Mercator projection with a scale factor of 0.9996 minimizes distortion within each zone. The central meridian of each zone has a false easting of 500,000m to avoid negative coordinates.
- Enter WGS84 coordinates (latitude, longitude) in decimal degrees
- The system calculates the appropriate UTM zone based on longitude
- Transverse Mercator projection formulas compute easting and northing
- Results include easting (m), northing (m), zone number, and zone letter
- UTM coordinates are in meters, making distance calculations straightforward
- Each zone spans 6° of longitude; choose the correct zone for your area
- Use the zone letter (C-X) to identify the latitude band