{"uid":"cap_cpbFguTQAOLVZIPd8daIg","slug":"bmr-tdee-calorie-target-calculator-8fd28ce5","name":"BMR, TDEE & Calorie Target Calculator","description":"Basal metabolic rate (Mifflin-St Jeor), daily calories by activity level, and a calorie target for a weekly weight change.","url":"https://fitness-calc.x402tookit.com/bmr-tdee?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["weight","sex","age"],"properties":{"age":{"type":"number","description":"Age in years, 15 to 100"},"sex":{"type":"string","description":"male or female"},"units":{"type":"string","description":"metric (default: kg and cm) or imperial (lb, feet and inches)"},"height":{"type":"number","description":"Height in cm (metric)"},"weight":{"type":"number","description":"Weight in kg, or pounds if units=imperial"},"activity":{"type":"string","description":"sedentary, light, moderate (default), active or very-active"},"heightFt":{"type":"number","description":"Feet (imperial)"},"heightIn":{"type":"number","description":"Inches (imperial; total inches if heightFt is omitted)"},"weeklyChange":{"type":"number","description":"Desired weight change in kg per week (negative to lose), -1 to 1; default 0"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"inputs":{"type":["null","object"],"properties":{"age":{"type":["null","number"]},"sex":{"type":["null","string"]},"heightCm":{"type":["null","number"]},"weightKg":{"type":["null","number"]}}},"source":{"type":["null","string"]},"bmrKcal":{"type":["null","number"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"activity":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"equation":{"type":["null","string"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"targetKcal":{"type":["null","number"]},"activityFactor":{"type":["null","number"]},"weeklyChangeKg":{"type":["null","number"]},"maintenanceKcal":{"type":["null","number"]},"commonMinimumKcal":{"type":["null","number"]},"belowCommonMinimum":{"type":["boolean","null"]},"maintenanceByActivity":{"type":["null","object"],"properties":{"light":{"type":["null","number"]},"active":{"type":["null","number"]},"moderate":{"type":["null","number"]},"sedentary":{"type":["null","number"]},"very-active":{"type":["null","number"]}}},"dailyDeficitOrSurplusKcal":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_aSVo9TAYNKByinKbopEFv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates basal metabolic rate (Mifflin-St Jeor), total daily energy expenditure by activity level, and a calorie target adjusted for a desired weekly weight change.","exampleAgentPrompt":"What are my daily calorie needs? I'm a 32-year-old female, 165 cm tall, 68 kg, moderately active, and I want to lose 0.5 kg per week.","exampleUseCases":[{"title":"Weight loss calorie planning","prompt":"I'm a 28-year-old male, 180 cm, 95 kg, lightly active. Can you calculate how many calories I should eat daily to lose 0.5 kg per week?"},{"title":"Maintenance calories for active athlete","prompt":"I'm a 25-year-old female, 170 cm, 62 kg, and I train pretty intensely — very active. What's my TDEE and how many calories do I need to maintain my current weight?"},{"title":"Imperial units calorie calculation for weight gain","prompt":"Calculate my BMR and daily calorie target using imperial units — I'm a 40-year-old male, 5 feet 11 inches, 185 pounds, sedentary, and I want to gain 0.25 kg per week."}],"resultDescription":"Returns the BMR in kcal (Mifflin-St Jeor equation), the TDEE adjusted by an activity factor for the specified activity level, and a target daily calorie intake adjusted for the desired weekly weight change rate. Also includes echoed inputs (age, sex, height in cm, weight in kg), activity factor used, the equation name, a human-readable summary, and a disclaimer.","failureModes":["Missing required parameters (weight, sex, age) returns a validation error","Age outside 15–100 range rejected","weeklyChange outside -1 to 1 kg/week rejected","Invalid activity level string returns error","Invalid units value returns error","Imperial height parameters (heightFt/heightIn) missing when units=imperial may produce incorrect results"],"whenToPreferThis":"Use this endpoint when you need to compute a personalized daily calorie budget grounded in the evidence-based Mifflin-St Jeor BMR formula, adjusted for activity level and a specific weekly weight-change target. Prefer it over generic nutrition advice when you need numeric kcal values, support both metric and imperial inputs, or need to programmatically integrate calorie targets into a diet-planning or health-tracking agent workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:08:17.346Z","isFirstParty":false,"canonicalSlug":"bmr-tdee-calorie-target-calculator-8fd28ce5"}