# 1m cell size equivalent value in decimal degree

I'm doing re-sampling pixel size in ERDAS 2014,I'm using input image(Indian terrain) in GCS_WGS_84 projection. Now I have to keep out put cell size as 1m,what is the 1m equvivalent value in Decimal degree?

• There is no straight answer to your question because it will vary depending on where you are on the globe (especially as you move away from the equator) and therefore will vary across a large continent like India. You may be better using projected SRS with meters as unit. Oct 30, 2014 at 8:00
• Check out this question: gis.stackexchange.com/questions/7430 It gives some hints on how the scale varies according to the latitude. Oct 30, 2014 at 8:17
• Length along one axis does change according to latitude but not along the other axis (it does a little because Earth is not a perfect sphere). If you want to use same pixel size in E/W and N/S directions you can base the calculation on "one degree is 111320 meters on equator". I you want to use non-rectangle pixels read en.wikipedia.org/wiki/Decimal_degrees and play with calculator csgnetwork.com/degreelenllavcalc.html. Oct 30, 2014 at 8:33