{"id":242,"date":"2026-08-21T18:30:31","date_gmt":"2026-08-21T18:30:31","guid":{"rendered":"https:\/\/netguide.io\/tools\/iban-pruefer\/"},"modified":"2026-08-21T18:30:31","modified_gmt":"2026-08-21T18:30:31","slug":"iban-pruefer","status":"publish","type":"post","link":"https:\/\/netguide.io\/tools\/de\/iban-pruefer\/","title":{"rendered":"IBAN-Pr\u00fcfer"},"content":{"rendered":"<div id=\"netgu-1534139828\" class=\"netgu-before-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"3494115342\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>\n<style>\n.wp-iban-container { max-width:100%; background:#fff; padding:20px; border:1px solid #ddd; border-radius:10px; font-family:-apple-system, sans-serif; color:#333; }\n.wp-iban-title { margin:0 0 15px 0; color:#2271b1; font-size:1.4rem; }\n.wp-iban-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(140px, 1fr)); gap:12px; margin-bottom:10px; }\n.wp-iban-input-group label { display:block; font-size:11px; font-weight:bold; margin-bottom:4px; text-transform:uppercase; color:#666; }\n.wp-iban-input-group input, .wp-iban-input-group select { width:100%; padding:8px; border:1px solid #ccc; border-radius:4px; box-sizing:border-box; }\n.wp-iban-checkbox-group { margin:15px 0; font-size:12px; display:flex; align-items:center; gap:8px; color:#666; }\n.wp-iban-note { font-size:12px; color:#666; margin-top:12px; min-height:1em; }\n.wp-iban-warn { color:#d63638; font-weight:bold; }\n.wp-iban-results { margin-top:20px; border-top:2px solid #eee; padding-top:15px; }\n.wp-iban-res-item { display:flex; justify-content:space-between; margin-bottom:6px; font-size:14px; gap:10px; }\n.wp-iban-total { font-weight:bold; font-size:18px; color:#2271b1; margin:10px 0; padding:5px 0; border-top:1px solid #eee; border-bottom:1px solid #eee; }\n.wp-iban-val { color:#2271b1; font-weight:bold; }\n.wp-iban-out { width:100%; box-sizing:border-box; padding:10px; border:1px solid #ccc; border-radius:4px; font-family:monospace; font-size:13px; word-break:break-all; background:#f7f7f7; margin-top:6px; }\n.wp-iban-btn { background:#2271b1; color:#fff; border:none; padding:9px 14px; border-radius:4px; cursor:pointer; font-size:13px; margin-top:10px; }\n<\/style><style>.wp-iban-res{padding:12px;border-radius:6px;font-size:15px;font-weight:bold;margin-top:12px;background:#f9f9f9;border:1px solid #eee;min-height:1em;}.wp-iban-res.ok{background:#e7f7ed;color:#2e7d32;border-color:#a5d6a7;}.wp-iban-res.bad{background:#fdf2f2;color:#d32f2f;border-color:#ef9a9a;}<\/style><script>window.wpIbanL = {\"waiting\":\"IBAN eingeben\u2026\",\"chars\":\"Ung\u00fcltige Zeichen\",\"short\":\"Zu kurz\",\"long\":\"Zu lang\",\"valid\":\"G\u00fcltige IBAN (Pr\u00fcfsumme korrekt)\",\"invalid\":\"Ung\u00fcltige Pr\u00fcfsumme\",\"country\":\"Land\"};<\/script>\n<div class=\"wp-iban-container\">\n  <h3 class=\"wp-iban-title\">IBAN-Pr\u00fcfer<\/h3>\n  <div class=\"wp-iban-input-group\"><label>IBAN<\/label><input type=\"text\" id=\"iban-in\" value=\"DE89 3704 0044 0532 0130 00\" oninput=\"ibanCheck()\"><\/div>\n  <div id=\"iban-res\" class=\"wp-iban-res\"><\/div>\n  <div id=\"iban-det\" class=\"wp-iban-note\" style=\"margin-top:8px;\"><\/div>\n  <div class=\"wp-iban-note\">Gepr\u00fcft wird die mathematische Pr\u00fcfsumme (Modulo 97), nicht ob das Konto existiert. Keine Daten\u00fcbertragung.<\/div>\n<\/div>\n<script>\nfunction ibanCheck(){\n  var raw=document.getElementById('iban-in').value; var s=String(raw).replace(\/\\s\/g,'').toUpperCase(); var box=document.getElementById('iban-res'); var det=document.getElementById('iban-det'); var L=window.wpIbanL||{};\n  if(!s){ box.className='wp-iban-res'; box.innerText=L.waiting||''; det.innerText=''; return; }\n  if(!\/^[A-Z0-9]+$\/.test(s)){ box.className='wp-iban-res bad'; box.innerText='\\u2717 '+(L.chars||'Invalid characters'); det.innerText=''; return; }\n  if(s.length<15){ box.className='wp-iban-res bad'; box.innerText='\\u2717 '+(L.short||'Too short'); det.innerText=''; return; }\n  if(s.length>34){ box.className='wp-iban-res bad'; box.innerText='\\u2717 '+(L.long||'Too long'); det.innerText=''; return; }\n  var re=s.slice(4)+s.slice(0,4);\n  var num=re.replace(\/[A-Z]\/g,function(c){ return (c.charCodeAt(0)-55).toString(); });\n  var rem=0; for(var i=0;i<num.length;i++){ rem=(rem*10+parseInt(num[i],10))%97; }\n  var grouped=s.replace(\/(.{4})\/g,'$1 ').trim();\n  if(rem===1){ box.className='wp-iban-res ok'; box.innerText='\\u2713 '+(L.valid||'Valid IBAN'); det.innerText=(L.country||'Country')+': '+s.slice(0,2)+'  \\u00b7  '+grouped; }\n  else { box.className='wp-iban-res bad'; box.innerText='\\u2717 '+(L.invalid||'Invalid checksum'); det.innerText=''; }\n}\nibanCheck();\n<\/script>\n\n\n<div id=\"netgu-632784943\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- NetGuide.io-After-Widget-Tools -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6258556257245998\"\r\n     data-ad-slot=\"5175852350\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">IBAN-Pr\u00fcfsumme verstehen<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Jede IBAN enth\u00e4lt eine zweistellige Pr\u00fcfziffer, mit der sich Tippfehler erkennen lassen. Der Pr\u00fcfer wendet das Standardverfahren (Modulo 97 nach ISO 7064) an und meldet sofort, ob die IBAN rechnerisch stimmig ist.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modulo 97:<\/strong> Die ersten vier Zeichen werden ans Ende gestellt, Buchstaben in Zahlen umgewandelt und der Rest bei Division durch 97 berechnet \u2013 er muss 1 ergeben.<\/li>\n\n\n<li><strong>Was gepr\u00fcft wird:<\/strong> Format, L\u00e4nge und Pr\u00fcfsumme. Nicht gepr\u00fcft wird, ob das Konto tats\u00e4chlich existiert.<\/li>\n\n\n<li><strong>Datenschutz:<\/strong> Die Berechnung l\u00e4uft lokal im Browser.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Verwandte Tools<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"\/tools\/de\/kreditkarten-pruefer-luhn\/\">Kreditkarten-Pr\u00fcfer (Luhn)<\/a><\/li>\n\n\n<li><a href=\"\/tools\/de\/prozent-mwst-rechner\/\">Prozent- & MwSt-Rechner<\/a><\/li>\n<\/ul>\n\n\n<div id=\"netgu-2519263951\" class=\"netgu-after-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"4559785002\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>IBAN auf G\u00fcltigkeit pr\u00fcfen \u2013 \u00fcber die Pr\u00fcfsumme nach ISO 7064 (Modulo 97). L\u00e4uft komplett im Browser, nichts wird gesendet.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[115],"tags":[],"class_list":["post-242","post","type-post","status-publish","format-standard","hentry","category-validator"],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/posts\/242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/comments?post=242"}],"version-history":[{"count":0,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/posts\/242\/revisions"}],"wp:attachment":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/media?parent=242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/categories?post=242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/tags?post=242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}