{"id":42662,"date":"2025-09-23T11:11:35","date_gmt":"2025-09-23T02:11:35","guid":{"rendered":"https:\/\/first-reach.org\/?page_id=42662"},"modified":"2026-03-26T13:03:56","modified_gmt":"2026-03-26T06:03:56","slug":"feeding_amount_calculator","status":"publish","type":"page","link":"https:\/\/first-reach.org\/en\/tools\/feeding_amount_calculator\/","title":{"rendered":"Daily Feeding Amount Calculation"},"content":{"rendered":"\n<p class=\"is-style-paragraph__lines-left\" style=\"font-size:20px\"><strong>Overview<\/strong><\/p>\n\n\n\n<p>By switching between dog and cat, entering body weight and the food\u2019s metabolizable energy (ME), and selecting (or manually inputting) a life-stage MER factor (RER multiplier), the tool automatically calculates RER, MER, and the recommended daily feeding amount (g)\u2014with the formulas shown. ME can be entered in kcal\/100 g or kcal\/kg. It covers key use cases such as growth, pregnancy\/lactation, and weight management, making it ideal for label development and internal validation.<\/p>\n\n\n  <div class=\"nrc-wrap feedcalc-app\" data-default-species=\"dog\" data-default-unit=\"100g\">\n    <h2 class=\"nrc-title\">Daily Feeding Amount Calculator (RER\/MER \u2192 g\/day)<\/h2>\n\n    <div class=\"nrc-card\">\n      <div class=\"nrc-label\">Species<\/div>\n      <div class=\"nrc-seg\" role=\"group\" aria-label=\"Species\">\n        <button class=\"nrc-segbtn\" type=\"button\" data-role=\"species-dog\" aria-pressed=\"true\">Dog<\/button>\n        <button class=\"nrc-segbtn\" type=\"button\" data-role=\"species-cat\" aria-pressed=\"false\">Cat<\/button>\n      <\/div>\n\n      <div class=\"nrc-row\">\n        <div>\n          <label class=\"nrc-label\" for=\"fc-weight\">Body weight (kg)<\/label>\n          <input class=\"nrc-input\" data-role=\"weight\" id=\"fc-weight\" type=\"number\" min=\"0\" step=\"0.1\" value=\"4.0\">\n        <\/div>\n        <div>\n          <label class=\"nrc-label\" for=\"fc-mer\">MER factor (RER multiplier)<\/label>\n          <input class=\"nrc-input\" data-role=\"mer\" id=\"fc-mer\" type=\"number\" min=\"0\" step=\"0.1\" value=\"1.6\">\n        <\/div>\n        <div>\n          <label class=\"nrc-label\" for=\"fc-me\">ME (energy density)<\/label>\n          <input class=\"nrc-input\" data-role=\"me\" id=\"fc-me\" type=\"number\" min=\"0\" step=\"1\" value=\"350\">\n        <\/div>\n        <div>\n          <div class=\"nrc-label\">ME unit<\/div>\n          <div class=\"nrc-seg\" role=\"group\" aria-label=\"ME unit\">\n            <button class=\"nrc-segbtn\" type=\"button\" data-role=\"unit-100g\" aria-pressed=\"true\">kcal\/100g<\/button>\n            <button class=\"nrc-segbtn\" type=\"button\" data-role=\"unit-kg\" aria-pressed=\"false\">kcal\/kg<\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"nrc-note\">\n        <div class=\"nrc-subtle\">\n          Tip: Click a suggested MER factor chip below to auto-fill the MER factor.<br>\n          Enter the product\u2019s metabolizable energy (ME) from the label and choose whether it is shown as kcal\/100g or kcal\/kg.\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"nrc-card\">\n      <div class=\"nrc-label\">Suggested MER factors (click to apply)<\/div>\n\n      <div data-role=\"chips-dog\">\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.2\">1.2 Inactive<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.4\">1.4 Low activity<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.6\">1.6 Neutered adult dog<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.8\">1.8 Intact adult dog<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"2.0\">2.0 Active<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"3.0\">3.0 Puppy (\u22644 months)<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"2.5\">2.5 Puppy (4\u20139 months)<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"2.0\">2.0 Puppy (9\u201312 months)<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"3.0\">3.0 Late pregnancy<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"4.0\">4.0 Working dog \/ high activity<\/button>\n        <span class=\"nrc-subtle\" style=\"display:inline-block;margin-left:6px;\">Lactation typically ranges 3.0\u20136.0+ (depends on litter size)<\/span>\n      <\/div>\n\n      <div data-role=\"chips-cat\" style=\"display:none;\">\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.2\">1.2 Neutered adult cat (indoor)<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.4\">1.4 Intact \/ active<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.0\">1.0 Weight maintenance (low)<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"0.9\">0.9 Weight loss<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"3.0\">3.0 Kitten (\u22644 months)<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"2.5\">2.5 Kitten (4\u201312 months)<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"1.8\">1.8 Late pregnancy<\/button>\n        <button class=\"nrc-chip\" type=\"button\" data-k=\"2.5\">2.5 Lactation (example)<\/button>\n        <span class=\"nrc-subtle\" style=\"display:inline-block;margin-left:6px;\">Lactation typically ranges 2.0\u20136.0 (depends on litter size)<\/span>\n      <\/div>\n    <\/div>\n\n    <div class=\"nrc-card\">\n      <div class=\"nrc-label\">RER\/MER & feeding amount (g\/day)<\/div>\n\n      <div class=\"nrc-kpi\"><span data-role=\"grams\">-<\/span> g\/day<\/div>\n      <div class=\"nrc-kpi-sub\">\n        RER: <span data-role=\"rer\">-<\/span> kcal\/day\n        &nbsp;|&nbsp;\n        MER: <span data-role=\"merKcal\">-<\/span> kcal\/day\n        &nbsp;|&nbsp;\n        ME: <span data-role=\"meView\">-<\/span>\n      <\/div>\n\n      <div class=\"nrc-eq\" data-role=\"eq\">\u2014<\/div>\n\n      <div class=\"nrc-note\">\n        Values are estimates. Adjust \u00b1 based on age, activity level, and body condition score (BCS).\n      <\/div>\n    <\/div>\n  <\/div>\n  \n\n\n\n<div class=\"epb-linkcard is-style-epb-radius__0 is-style-epb-hover__floating wp-block-emanon-premium-blocks-linkcard epb-margin-top__default epb-margin-top__default-sp epb-margin-top__default-tablet\" style=\"--epb-linkcard-arrow-size:16px\"><div class=\"epb-linkcard_label icon-edit\" data-fontweight=\"normal\" style=\"font-size:12px;letter-spacing:0.15em\">Related article<\/div><a class=\"epb-linkcard_link\" href=\"https:\/\/first-reach.org\/en\/contents\/aafco-feeding-guidelines-japan\/\" target=\"_blank\" rel=\"noopener noreferrer\"><div class=\"epb-linkcard_inner epb-arrow-effect-right is-style-epb-arrow__01\" style=\"padding-top:16px;padding-bottom:16px;padding-left:24px;border-style:solid;border-top-width:2px;border-bottom-width:2px;border-left-width:2px;border-right-width:2px;border-color:#e5e7e8\"><div class=\"epb-linkcard_heading\"><div class=\"epb-linkcard_title\" data-fontweight=\"normal\" style=\"--epb-title-font-sp:16px;--epb-title-font-tablet:16px;--epb-title-font-pc:16px;letter-spacing:0.04em;color:#333333\">Practical guide to feeding guide development and label display for complete &amp; balanced dog and cat foods<\/div><\/div><\/div><\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Overview By switching between dog and cat, entering body weight and the food\u2019s metabolizable energy (ME), and selecting (or manually inputting) a life-stage MER factor (RER multiplier), the tool automatically calculates RER, MER, and the recommended daily feeding amount (g)\u2014with the formulas shown. ME can be entered in kcal\/100 g or kcal\/kg. It covers key [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":42685,"parent":42472,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-42662","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/pages\/42662","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/comments?post=42662"}],"version-history":[{"count":5,"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/pages\/42662\/revisions"}],"predecessor-version":[{"id":48356,"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/pages\/42662\/revisions\/48356"}],"up":[{"embeddable":true,"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/pages\/42472"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/media\/42685"}],"wp:attachment":[{"href":"https:\/\/first-reach.org\/en\/wp-json\/wp\/v2\/media?parent=42662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}