# Problem on changing EPSG:3376 to EPSG:4326 using Proj4js

I been using the proj4js to transform the projection1 (EPSG::3376) to projection2 (EPSG::4326) with the data location of `[66333, 170175]` the outcome is supposed to be `[110.281820983;1.5390299426]` where I test it on the https://mygeodata.cloud/cs2cs/ and test it on https://epsg.io but when it transforms it turns to `[115.59856224058234, 5.5388802885425905]`.

Can I know what are the problem with it?

Here is my code

``````    var firstProjection     = '+proj=omerc +lat_0=4 +lonc=115 +alpha=53.31580995 +k=0.99984 +x_0=0 +y_0=0 +no_uoff +gamma=53.13010236111111 +ellps=GRS80 +units=m +no_defs';
var secondProjection    = '+proj=longlat +datum=WGS84 +no_defs';
var point               = proj4(firstProjection,secondProjection,[66333,170175]);
``````
• Show your code. Feb 13 '19 at 10:48
• EPSG:4326 is lat long, so 110.28...,1.5... is not correct Feb 15 '19 at 8:58
• i had add in my code. By the way, why the lat long is not correct? I try it show the correct position on the map.
– Newb
Feb 15 '19 at 14:19
• I confusing with the input coordinate actually any clarification on the input coordinate of proj4js ? Does the x and y stand for the easting and northing or latitude or longtitude?
– Newb
Feb 15 '19 at 14:26
• `... By the way, why the lat long is not correct?` because EPSG::4326 coordinates are specified in latitude then longitude order, latitude has range +/-90 degrees, and your first value is `110.28` so that can't be a correct latitude value Nov 12 '19 at 16:41