LatLong Converter

WGS84 to JGD2011 Converter

WGS84
JGD2011
WGS84
JGD2011

About WGS84 Coordinate System

1Definition

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.

2Development History

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.

3Applications

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.

GPS Compatibility

WGS84 is the native coordinate system of the Global Positioning System (GPS), ensuring direct compatibility with all GPS receivers and satellite navigation systems worldwide.

Global Standard

As the most widely adopted geodetic datum, WGS84 provides a consistent global reference frame for mapping, surveying, and geospatial data exchange across international boundaries.

High Precision

With continuous refinements, WGS84 achieves centimeter-level accuracy globally, making it suitable for high-precision applications like surveying, drone navigation, and scientific research.

About JGD2011 Coordinate System

1Definition

JGD2011 is Japan's national geodetic system, updated after the 2011 Great East Japan Earthquake to account for significant crustal deformation.

2Development History

JGD2011 replaced JGD2000 following the massive crustal displacements caused by the 2011 Tohoku earthquake (Mw 9.0).

3Applications

JGD2011 is the official coordinate system for Japan's national surveying, GIS data, and public works.

Post-earthquake Adjustment

JGD2011 incorporates the crustal deformation from the 2011 Tohoku earthquake.

GRS80 Ellipsoid

JGD2011 uses the GRS80 ellipsoid, maintaining compatibility with global systems.

Yearly Updates

JGD2011 coordinates are adjusted annually to account for ongoing crustal movement.

WGS84 to JGD2011 Conversion Guide

📐 Conversion Formula
// WGS84 → JGD2011 (Japanese datum shift)
// Uses a simple 3-parameter geocentric translation

// Step 1: Geodetic → Cartesian (GRS80 ellipsoid)
X = (N + h) × cos(φ) × cos(λ)
Y = (N + h) × cos(φ) × sin(λ)
Z = (N × (1 - e²) + h) × sin(φ)

// Step 2: Apply datum shift
// Parameters: ΔX = -146.414, 507.337, 680.507 (meters)
X' = X + ΔX
Y' = Y + ΔY
Z' = Z + ΔZ

// Step 3: Cartesian → Geodetic (GRS80 ellipsoid)
// Iterative calculation for latitude
p = √(X'² + Y'²)
θ = atan2(Z' × a, p × (1 - f))
φ' = atan2(Z' + e² × (1 - f) × a × sin³(θ), p - e² × a × cos³(θ))
λ' = atan2(Y', X')

Japanese datum transformations (JGD2000, JGD2011) use a simple 3-parameter geocentric translation from WGS84. JGD2011 was updated after the 2011 Tohoku earthquake.

📋 Operation Steps
  1. Enter your WGS84 coordinates in the input field (latitude, longitude, one pair per line)
  2. Click the Convert button to transform coordinates from WGS84 to JGD2011
  3. Review the converted JGD2011 coordinates in the output field
  4. Copy the results or save them as an XLSX file for further use
💡 Tips
  • Ensure coordinates are within valid ranges before conversion
  • For batch conversions, enter one coordinate pair per line
  • Verify a sample of converted coordinates on your target platform
  • All conversions are performed client-side for complete data privacy

Frequently Asked Questions

The accuracy depends on the specific coordinate systems being converted. For standard geographic transformations between WGS84 and JGD2011, typical accuracy is within sub-meter range under normal conditions. For systems requiring 7-parameter transformations, accuracy depends heavily on the quality and regional relevance of the parameters used. Always verify results for critical applications.

Yes! Our tool supports batch conversion. Simply enter multiple coordinate pairs, one per line, in the input field on this page. All coordinates will be processed simultaneously, and you can download the results as an XLSX file for further analysis or integration.

Enter coordinates in the format: latitude, longitude (one pair per line). Latitude should be the first value, longitude the second. For example: 23.05105,113.37149. Ensure latitude is between -90 and 90, and longitude is between -180 and 180.

For this conversion, standard parameters may be sufficient for most applications.

Absolutely. All coordinate conversions are performed entirely in your browser using client-side JavaScript. Your data is never sent to any server, ensuring complete privacy and security of your geographic information. This is especially important for sensitive location data.

WGS84 wgs84 (world geodetic system 1984) is the global standard geodetic reference system used by gps. it ... JGD2011 jgd2011 is japan's national geodetic system, updated after the 2011 great east japan earthquake to a. The conversion between them accounts for differences in their ellipsoid parameters, datum origins, and any encryption offsets.