(DoD, NATO) The ratio of the grid convergence angle to the longitude difference. In the Lambert Conical Orthomorphic projection, this ratio is constant for all charts based on the same two standard parallels. See also convergence; grid convergence.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). grid convergence factor. Retrieved September 21, 2026, from http://smartdefine.org/grid_convergence_factor/definitions/1961925 |
| Chicago | Military Dictionary (DoD). 2011. "grid convergence factor" http://smartdefine.org/grid_convergence_factor/definitions/1961925 (accessed September 21, 2026). |
| Harvard | Military Dictionary (DoD) 2011, grid convergence factor, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/grid_convergence_factor/definitions/1961925>. |
| MLA | Military Dictionary (DoD). "grid convergence factor" 4 April 2011. Web. 21 September 2026. <http://smartdefine.org/grid_convergence_factor/definitions/1961925> |