{"id":16629,"date":"2026-04-09T10:00:00","date_gmt":"2026-04-09T08:00:00","guid":{"rendered":"https:\/\/www.sigterritoires.fr\/?p=16629"},"modified":"2026-03-15T16:51:05","modified_gmt":"2026-03-15T15:51:05","slug":"epsg-4326-vs-3857-3","status":"publish","type":"post","link":"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/","title":{"rendered":"[ES]EPSG:4326 vs EPSG:3857: comprender la diferencia entre los dos sistemas m\u00e1s utilizados en SIG"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Cuando se trabaja con datos geogr\u00e1ficos en QGIS o en aplicaciones de cartograf\u00eda web, dos sistemas de coordenadas aparecen muy a menudo: <strong>EPSG:4326<\/strong> y <strong>EPSG:3857<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estos dos sistemas se utilizan en muchos contextos, pero no representan las coordenadas de la misma manera.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En este art\u00edculo veremos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>qu\u00e9 son <strong>EPSG:4326 y EPSG:3857<\/strong><\/li>\n\n\n\n<li>cu\u00e1les son sus diferencias<\/li>\n\n\n\n<li>en qu\u00e9 casos utilizar uno u otro.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contenu <\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#1_%C2%BFQue_es_un_codigo_EPSG\" >1. \u00bfQu\u00e9 es un c\u00f3digo EPSG?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#2_EPSG_4326_coordenadas_de_latitud_longitud\" >2. EPSG:4326: coordenadas de latitud \/ longitud<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#3_EPSG_3857_la_proyeccion_Web_Mercator\" >3. EPSG:3857: la proyecci\u00f3n Web Mercator<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#4_Principales_diferencias\" >4. Principales diferencias<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#5_Uso_en_QGIS\" >5. Uso en QGIS<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#EPSG_4326\" >EPSG:4326<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#EPSG_3857\" >EPSG:3857<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#6_Preguntas_frecuentes\" >6. Preguntas frecuentes<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#Los_datos_no_se_alinean_con_el_mapa_base\" >Los datos no se alinean con el mapa base<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#Las_coordenadas_parecen_incorrectas\" >Las coordenadas parecen incorrectas<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/es\/epsg-4326-vs-3857-3\/#Conclusion\" >Conclusi\u00f3n<\/a><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_%C2%BFQue_es_un_codigo_EPSG\"><\/span>1. \u00bfQu\u00e9 es un c\u00f3digo EPSG?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Un <strong>c\u00f3digo EPSG<\/strong> identifica un sistema de referencia de coordenadas geogr\u00e1ficas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estos c\u00f3digos est\u00e1n definidos en el <strong>EPSG Geodetic Parameter Dataset<\/strong>, una base de referencia utilizada en los programas SIG.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cada c\u00f3digo corresponde a un sistema de coordenadas espec\u00edfico.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Por ejemplo:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>C\u00f3digo<\/th><th>Descripci\u00f3n<\/th><\/tr><\/thead><tbody><tr><td>EPSG:4326<\/td><td>WGS84 \u2013 latitud y longitud<\/td><\/tr><tr><td>EPSG:3857<\/td><td>Web Mercator \u2013 proyecci\u00f3n utilizada en mapas web<\/td><\/tr><tr><td>EPSG:2154<\/td><td>Lambert 93<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_EPSG_4326_coordenadas_de_latitud_longitud\"><\/span>2. EPSG:4326: coordenadas de latitud \/ longitud<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">El sistema <strong>EPSG:4326<\/strong> est\u00e1 basado en el sistema geod\u00e9sico <strong>WGS84<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Las coordenadas se expresan en:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>latitud<\/strong><\/li>\n\n\n\n<li><strong>longitud<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Las unidades son <strong>grados<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ejemplo:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Latitud : -20.3484\nLongitud : 57.5522\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Este sistema se utiliza en:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>los GPS<\/li>\n\n\n\n<li>muchas bases de datos geogr\u00e1ficas<\/li>\n\n\n\n<li>archivos GeoJSON.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_EPSG_3857_la_proyeccion_Web_Mercator\"><\/span>3. EPSG:3857: la proyecci\u00f3n Web Mercator<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">El sistema <strong>EPSG:3857<\/strong> es una proyecci\u00f3n llamada <strong>Web Mercator<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Las coordenadas se expresan en <strong>metros<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ejemplo:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>X : 6404700\nY : -2309000\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Esta proyecci\u00f3n es utilizada por la mayor\u00eda de los mapas web:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>OpenStreetMap<\/li>\n\n\n\n<li>Google Maps<\/li>\n\n\n\n<li>Leaflet<\/li>\n\n\n\n<li>OpenLayers.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Principales_diferencias\"><\/span>4. Principales diferencias<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>EPSG:4326<\/th><th>EPSG:3857<\/th><\/tr><\/thead><tbody><tr><td>coordenadas en grados<\/td><td>coordenadas en metros<\/td><\/tr><tr><td>latitud \/ longitud<\/td><td>coordenadas proyectadas en un plano<\/td><\/tr><tr><td>utilizado para datos GPS<\/td><td>utilizado para mapas web<\/td><\/tr><tr><td>adecuado para almacenar coordenadas geogr\u00e1ficas<\/td><td>adecuado para mostrar mapas<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Uso_en_QGIS\"><\/span>5. Uso en QGIS<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">En QGIS, estos dos sistemas son muy comunes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"EPSG_4326\"><\/span>EPSG:4326<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Se utiliza frecuentemente para:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>importar coordenadas GPS<\/li>\n\n\n\n<li>almacenar datos geogr\u00e1ficos<\/li>\n\n\n\n<li>trabajar con archivos GeoJSON.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"EPSG_3857\"><\/span>EPSG:3857<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Se utiliza frecuentemente para:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>mostrar mapas base web<\/li>\n\n\n\n<li>trabajar con OpenStreetMap<\/li>\n\n\n\n<li>publicar mapas web.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">QGIS puede <strong>reproyectar las capas autom\u00e1ticamente<\/strong> para que se visualicen correctamente.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Preguntas_frecuentes\"><\/span>6. Preguntas frecuentes<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Los_datos_no_se_alinean_con_el_mapa_base\"><\/span>Los datos no se alinean con el mapa base<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Esto suele significar que:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>la capa est\u00e1 en <strong>EPSG:4326<\/strong><\/li>\n\n\n\n<li>el proyecto est\u00e1 en <strong>EPSG:3857<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">QGIS puede corregirlo autom\u00e1ticamente si la <strong>reproyecci\u00f3n al vuelo<\/strong> est\u00e1 activada.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Las_coordenadas_parecen_incorrectas\"><\/span>Las coordenadas parecen incorrectas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Por ejemplo:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>X : -20\nY : 57\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Estos valores probablemente corresponden a <strong>coordenadas de latitud y longitud<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>EPSG:4326 y EPSG:3857<\/strong> son dos sistemas de coordenadas muy utilizados en los SIG.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>EPSG:4326<\/strong> es adecuado para almacenar coordenadas geogr\u00e1ficas.<\/li>\n\n\n\n<li><strong>EPSG:3857<\/strong> se utiliza principalmente para mostrar mapas en aplicaciones web.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Comprender la diferencia entre estos dos sistemas permite evitar muchos problemas de proyecci\u00f3n en QGIS y en aplicaciones de cartograf\u00eda.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cuando se trabaja con datos geogr\u00e1ficos en QGIS o en aplicaciones de cartograf\u00eda web, dos sistemas de coordenadas aparecen muy a menudo: EPSG:4326 y EPSG:3857. Estos dos sistemas se utilizan en muchos contextos, pero no representan&hellip;<\/p>\n","protected":false},"author":1,"featured_media":16586,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1357,4570],"tags":[4593,4595,4591,1369,1915],"class_list":["post-16629","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qgis-es","category-tutorial-es","tag-crs-es","tag-epsg-es","tag-proyecciones","tag-qgis-es","tag-sig-es"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"Aprende la diferencia entre EPSG:4326 y EPSG:3857 en SIG. 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