Step-by-Step TDEE and Macro Calculator (With Examples)
Informational article in the Macronutrients Explained: Protein, Carbs, Fat topical map — Calculating Needs & Tracking Macros content group. 12 copy-paste AI prompts for ChatGPT, Claude & Gemini covering SEO outline, body writing, meta tags, internal links, and Twitter/X & LinkedIn posts.
← Back to Macronutrients Explained: Protein, Carbs, Fat
12 Prompts • 4 Phases
Overview
A TDEE and macro calculator estimates daily calorie needs by calculating basal metabolic rate (BMR)—commonly with the Mifflin–St Jeor formula—and multiplying by an activity factor to yield total daily energy expenditure (TDEE); it then converts chosen calorie targets into grams using 4 kcal per gram for protein and carbohydrates and 9 kcal per gram for fat. For example, the Mifflin–St Jeor equation is BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age(years) + s (where s = +5 for males, −161 for females), and a 500 kcal daily deficit approximates 1 lb (0.45 kg) weight loss per week. Many web calculators default to Mifflin–St Jeor for adults.
Calculation works by combining a resting energy estimate with activity and goal adjustments: BMR formulas such as Harris–Benedict, Mifflin–St Jeor, or Katch–McArdle provide the resting baseline, then standardized activity multipliers (sedentary 1.2–vigorous 1.725) produce a TDEE. A TDEE calculator applies those steps, then adjusts calories for goals (for example maintenance, a 10–20% deficit for slow weight loss, or a 5–15% surplus for lean gain). After a calorie target is set, macronutrient breakdown is converted to grams using energy densities (protein 4 kcal/g, carbs 4 kcal/g, fat 9 kcal/g) so calorie needs translate into actionable protein, carbohydrate, and fat targets, and exportable code snippets implement these conversions reproducibly.
The crucial nuance is that one formula does not fit all and translating percentages into grams is essential for meal planning. For instance, two 80 kg individuals—one at 20% body fat (lean mass 64 kg) and one at 10% body fat (lean mass 72 kg)—will have different BMR estimates if Katch–McArdle is used, producing different maintenance calories even though body weight is identical. Relying solely on Mifflin–St Jeor without justifying body composition introduces error for athletic or obese populations. Another common mistake is giving a 30/40/30 macro percentage without converting to grams; at 2,500 kcal maintenance that split corresponds to about 188 g protein, 250 g carbs, and 83 g fat, which is what practical how to calculate macros guidance must produce for usable meal plans and adherence.
Practically, start by selecting the most appropriate BMR formula (Mifflin–St Jeor for general populations, Katch–McArdle when lean mass is known), record weight, height, age and an activity multiplier, then compute TDEE and set a calorie target based on the goal (a 500 kcal daily deficit approximates 1 lb/0.45 kg weekly weight loss). Convert the calorie target into grams using 4 kcal/g for protein and carbs and 9 kcal/g for fat, and adjust protein to 1.6–2.2 g/kg for muscle retention when in a deficit. This page contains a structured, step-by-step framework.
How to use this prompt kit:
- Work through prompts in order — each builds on the last.
- Click any prompt card to expand it, then click Copy Prompt.
- Paste into Claude, ChatGPT, or any AI chat. No editing needed.
- For prompts marked "paste prior output", paste the AI response from the previous step first.
Article Brief
tdee calculator
TDEE and macro calculator
authoritative, conversational, evidence-based
Calculating Needs & Tracking Macros
Health-conscious adults (18–55) with basic nutrition knowledge who want step-by-step guidance to calculate TDEE and macros for weight loss, muscle gain, or maintenance; includes fitness enthusiasts and coaches seeking clear examples.
A practical, step-by-step calculator walkthrough with fully worked examples for different goals and body types, transparent formulas, population-specific adjustments, meal-planning templates, and downloadable calculator logic explained so readers can replicate or embed it.
- TDEE calculator
- how to calculate macros
- total daily energy expenditure
- macro calculator examples
- macronutrient breakdown
- calorie needs
- protein carbs fat ratio
- maintenance calories
- macro targets for weight loss
Planning Phase
1
You are creating a complete article outline for the piece titled "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: produce a structured, publish-ready outline that an experienced nutrition writer can write to hit 1600 words and satisfy informational search intent. Context: topic = Nutrition; parent topical map = "Macronutrients Explained: Protein, Carbs, Fat"; intent = informational; the piece must be practical, evidence-based, and include worked examples, calculator logic, and meal plan suggestions. Deliver a full structural blueprint including H1 (use exact article title), all H2 headings, H3 sub-headings where needed, suggested word-count targets per section summing to ~1600 words, and 1-2 concise notes for each section explaining what must be covered (sources to cite, calculations to show, examples to include). Include placement notes for examples, calculator screenshot, and call-to-action linking to the pillar article. Make sure the outline prioritizes clarity (step-by-step calculation sequence), population-specific adjustments (women, older adults, athletes), and quick-scan features (bullet lists, tables). End instruction: Return only the ready-to-write outline as plain text with headings and word targets per section — do not write the article content yet.
2
You are preparing a research brief for the article "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: compile essential research assets the writer must weave into the article to establish accuracy and authority. Context: the article explains TDEE and macros, shows worked examples, and must be evidence-based and practical. Deliver a list of 10–12 items: include named studies (with full citation line), authoritative reports or guidelines, important statistics, recognized formulas/tools (e.g., Mifflin-St Jeor, Harris-Benedict), relevant expert names (registered dietitians, exercise physiologists), widely used calculators or apps to reference, and trending angles (e.g., flexible dieting, protein for older adults). For each item include a one-line note explaining why it belongs and how to use it in the article (e.g., "cite for TDEE baseline formula"). End instruction: Return the research brief as a numbered list in plain text, each entry 1–2 sentences.
Writing Phase
3
You are writing the Introduction for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: craft a compelling 300–500 word opening that hooks the reader, explains why TDEE + macros matter, and previews exactly what the reader will learn. Context: informational intent, audience are intermediate readers who know basic nutrition terms but need practical how-to. Include: one strong hook sentence (surprising stat or common mistake), a short context paragraph on TDEE and macros and why they’re useful for weight loss, muscle gain, or maintenance, a clear thesis sentence that promises step-by-step calculator instructions plus worked examples and meal planning guidance, and a 2-3 bullet preview of the key sections (calculator steps, examples for 3 goals, meal templates). Tone should be authoritative, friendly, and evidence-based—avoid jargon without explanation. End instruction: Return only the intro text ready to paste under the H1; do not include any additional headings or notes.
4
You are writing the full body of the article "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: produce the complete article body following the outline created in Step 1. IMPORTANT: paste the outline you received from Step 1 right after this prompt before the AI runs. Context: target total article length ~1600 words including intro and conclusion; this prompt should generate all H2 blocks in order, writing each H2 block fully before moving to the next; include H3s and example calculations exactly where the outline specifies. Requirements: explain the TDEE formula (show Mifflin-St Jeor calculation with a worked numeric example), explain activity factors, demonstrate macro splits for three goals (fat loss, muscle gain, maintenance) using three distinct profiles (e.g., 28F 140lb active; 45M 200lb sedentary; 32F 130lb athlete), include a simple macro calculator algorithm (stepwise numbered list showing formulas), show a sample one-day meal plan for each example with macro totals, and include a screenshot caption placeholder for the calculator. Use short paragraphs, bullet lists, and at least one simple table (text) for macro targets. Cite studies inline (author, year) where claims are made. Include transitions between sections. End instruction: Paste your Step 1 outline above, then return the completed ARTICLE BODY as plain text with clear H2/H3 headings and the examples included.
5
You are creating explicit E-E-A-T signals for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: produce ready-to-use authority content the writer will drop into the article to raise credibility. Deliver: (A) five specific expert quote suggestions — each one line of quoted text plus suggested speaker name and exact credentials (e.g., "Dr. Jane Smith, PhD, RD, Sports Nutrition Scientist, Univ. of X") and a one-line note on where to place the quote; (B) three real, high-quality studies or reports with full citation lines (author, year, journal/report, DOI or URL) the writer must cite in the article; (C) four customizable first-person experience sentences the author can personalize (e.g., "In my 7 years coaching clients..."), each 10–20 words. Make sure the studies relate to TDEE formulas, protein needs, and macros for weight change. End instruction: Return the authority block as numbered lists A, B, and C in plain text.
6
You are writing the FAQ block for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: produce 10 concise Q&A pairs tailored for People Also Ask boxes, voice search, and featured snippets. Context: target short queries users ask when calculating TDEE and macros. Requirements: each answer must be 2–4 sentences, conversational, precise, and include numeric examples where helpful; cover topics like "What is TDEE?", "Which TDEE formula is best?", "How many calories should I eat to lose weight?", "How much protein do I need?", "Do I count fiber carbs?", "How to adjust macros for activity or age?", and "Can I eyeball macros?". Use simple arithmetic where appropriate and avoid long paragraphs. End instruction: Return the ten Q&A pairs in plain text, each labeled Q1–Q10 with the question followed by the answer.
7
You are writing the Conclusion for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: craft a 200–300 word closing that recaps the key takeaways, reinforces the benefits of using the step-by-step calculator, and gives a clear, actionable next step. Context: readers should be guided to use the calculator, try the provided examples, and link to the broader pillar article. Requirements: include a one-sentence directive CTA such as "Use the calculator now and log your results for two weeks" and an exact 1-sentence link invitation to the pillar article: "Read the full guide: 'Macronutrients Explained: A Complete Guide to Protein, Carbohydrates, and Fats.'" Tone: motivating and evidence-based. End instruction: Return only the conclusion text ready to paste under the last heading.
Publishing Phase
8
You are generating final metadata and schema for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: provide SEO-optimised meta tags and a complete Article + FAQPage JSON-LD block that a developer can paste into the page. Context: target primary keyword "TDEE and macro calculator" and convert clicks; meta lengths must follow guidelines. Deliver: (a) Title tag (55–60 characters) containing the primary keyword; (b) Meta description 148–155 characters including a call-to-action; (c) OG title; (d) OG description; (e) Full JSON-LD Article schema that includes headline, author (use "Staff Writer"), datePublished placeholder, description, mainEntity (FAQPage) referencing the 10 FAQ Q&A pairs from Step 6, and sameAs links placeholder. Make sure the JSON-LD is valid and complete. End instruction: Return the four tags and then the JSON-LD code only — provide code that is ready to paste into the head section.
9
You are building an internal linking map for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: after pasting your final article draft below, create a prioritized list of 6–8 cluster pages from the parent topical map to link from this article. IMPORTANT: paste your full article draft below before running this prompt so the tool can locate optimal anchor sentences. Context: topical map includes the pillar 'Macronutrients Explained' and cluster pieces. For each suggested internal link provide: (1) target article title and URL slug suggestion, (2) the exact in-article sentence where the link should be inserted (copy-paste the sentence from the draft), and (3) recommended anchor text (6 words or fewer). Also give the reason for the link (SEO/user value). End instruction: Paste your full article draft below, then return the internal linking map as a numbered list in plain text.
10
You are creating a visual/content image plan for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: after pasting your final article draft below, recommend six specific images/graphics that improve comprehension and on-page SEO. IMPORTANT: paste your full article draft below prior to running this prompt so suggestions can match content. For each image provide: (1) descriptive title, (2) what the image shows (detailed), (3) where in the article it should go (exact heading or sentence), (4) exact SEO-optimised alt text including the keyword "TDEE and macro calculator", (5) image type (photo, infographic, screenshot, diagram), and (6) note on whether to include data sources or captions. Prioritise images that explain formulas, show the calculator UI, and display worked examples and meal plans. End instruction: Paste your draft below, then return the six image recommendations as a numbered list.
Distribution Phase
11
You are writing social copy to promote "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: after pasting your final article title and short summary (2–3 bullets) below, create platform-native promotional posts. IMPORTANT: paste the article title plus a 2–3 bullet summary of the article below before running this prompt. Deliver: (A) X/Twitter: a thread opener (one tweet, ≤280 chars) plus 3 follow-up tweets that summarize the calculator steps and include a CTA and a hashtag set; (B) LinkedIn: one 150–200 word professional post with a hook, one key insight (data or example), and a CTA linking to the article; (C) Pinterest: one 80–100 word keyword-rich pin description that explains what the pin links to and includes the primary keyword. Tone: concise, helpful, and click-enticing (no clickbait). End instruction: Paste title and summary below, then return the three posts as labeled sections A, B, and C in plain text.
12
You are performing a final SEO audit for "Step-by-Step TDEE and Macro Calculator (With Examples)". Two-sentence setup: paste your full article draft below and the tool will evaluate on specific SEO and E-E-A-T criteria. IMPORTANT: paste the full article draft after this prompt and before running the assessment. The audit must check: (1) primary keyword placement in title, first 100 words, H2s, and meta; (2) secondary and LSI keyword coverage and natural density; (3) E-E-A-T gaps (missing expert quotes, citations, author bio); (4) readability estimate (Flesch or grade-level) and suggestions to improve; (5) heading hierarchy and H tags misuse; (6) duplicate angle risk vs. top 10 SERP (short note); (7) content freshness signals (dates, recent studies); and (8) five actionable improvement suggestions prioritized by impact and difficulty (high/medium/low). End instruction: Paste the draft below and return the audit as a numbered checklist plus the five prioritized suggestions in plain text.
✗ Common Mistakes
- Using a single TDEE formula without explaining why you chose it (readers need justification for Mifflin-St Jeor vs Harris-Benedict).
- Skipping worked numeric examples — leaving readers unable to replicate calculations themselves.
- Presenting macro percentages without translating them to grams for bodyweight, causing confusion for meal planning.
- Failing to address activity-level adjustments and how to modify the activity factor in realistic terms.
- Not accounting for special populations (older adults, athletes, women) or showing how to adapt the calculator.
- Omitting citations for claims about protein needs or calorie deficits, which weakens credibility.
- Providing macros that assume perfect tracking without offering practical rounding or flexible options.
✓ Pro Tips
- Show both percent-based and gram-based macro outputs: display % for high-level readers and grams per bodyweight (g/kg) for practical meal planning — this ranks for both informational and transactional queries.
- Include three real, contrasting worked examples (sedentary, active, athlete) with photos or avatars — searchers love relatable examples and they boost dwell time.
- Offer an embeddable calculator logic snippet (JavaScript pseudocode) or downloadable CSV so developers and coaches can reuse it — this attracts backlinks and developer interest.
- Use inline citations (Author, Year) next to key claims and include a short references section; Google rewards clear sourcing for nutrition content.
- Add a short interactive element suggestion (toggle for goals) and explain how to A/B test macro targets over two weeks — this signals practical value to users and makes the article more actionable.
- Optimize the H2s as question phrases (e.g., "How to calculate TDEE step-by-step?") to capture PAA and voice-search traffic.
- Provide alternative lower-effort tracking methods (visual portion guides, flexible dieting rules) for readers who won’t use precise tracking — increases real-world usefulness.
- Create a short downloadable cheat-sheet image for Pinterest and the article to increase shares and backlinks; include the primary keyword in the file name and alt text.