Coordinate converter
Convert directions, Cartesian vectors, and structural coordinates
Conversion settings and data input
Choose the type of conversion, then enter data manually or import a text file. Structural corrections use dip direction and dip; if a file contains strike and dip, dip direction is assumed to be strike + 90°.
Expected columns for file input
Header names are flexible. The page also accepts lowercase variants and common synonyms.
ID, Dec, IncThe file is processed locally in your browser.
Recommended format
ID,Dec,Inc
Converted results
No converted results yet.
Result plot
Directions are shown on an equal-area (Schmidt) stereonet.
For directional plots, positive inclinations (down) are filled and negative inclinations (up) are open.
Calculation notes
- D/I ↔ X/Y/Z uses a north-east-down Cartesian reference frame with Z positive downward.
- The antipode is calculated as D + 180° and I = −I, with declination normalized to 0–360°.
- Tilt correction rotates the magnetization vector around the bedding strike axis by the bedding dip; geographic → stratigraphic uses an unfolding rotation, and the inverse operation restores the bedding tilt.