{"uid":"cap_fTZoN_XhWzcNYNLKX9FFo","slug":"ideal-body-weight-calculator-devine-robinson-miller-hamwi-c78b015d","name":"Ideal Body Weight Calculator (Devine, Robinson, Miller, Hamwi)","description":"Ideal body weight by the Devine, Robinson, Miller and Hamwi formulas from height and sex, in kg and pounds.","url":"https://fitness-calc.x402tookit.com/ideal-weight?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":["sex"],"properties":{"sex":{"type":"string","description":"male or female"},"units":{"type":"string","description":"metric (default, height in cm) or imperial (heightIn in inches)"},"height":{"type":"number","description":"Height in cm (metric)"},"heightIn":{"type":"number","description":"Height in inches (imperial)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"sex":{"type":["null","string"]},"asOf":{"type":["null","string"]},"hamwi":{"type":["null","object"],"properties":{"kg":{"type":["null","number"]},"lb":{"type":["null","number"]}}},"devine":{"type":["null","object"],"properties":{"kg":{"type":["null","number"]},"lb":{"type":["null","number"]}}},"miller":{"type":["null","object"],"properties":{"kg":{"type":["null","number"]},"lb":{"type":["null","number"]}}},"source":{"type":["null","string"]},"average":{"type":["null","object"],"properties":{"kg":{"type":["null","number"]},"lb":{"type":["null","number"]}}},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"heightCm":{"type":["null","number"]},"robinson":{"type":["null","object"],"properties":{"kg":{"type":["null","number"]},"lb":{"type":["null","number"]}}},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"heightInches":{"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_n7LroraVBi110WIzDbO6A","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 ideal body weight in kg and pounds using four clinical formulas (Devine, Robinson, Miller, Hamwi) given height and sex.","exampleAgentPrompt":"What's the ideal body weight for a male who is 180 cm tall? Give me results from all four formulas — Devine, Robinson, Miller, and Hamwi — in both kg and pounds.","exampleUseCases":[{"title":"Personal ideal weight check","prompt":"I'm a woman, 5 feet 4 inches tall — what's my ideal body weight according to the Devine, Robinson, Miller, and Hamwi formulas? Give me the numbers in pounds."},{"title":"Clinical nutrition intake form","prompt":"I need the ideal body weight for a male patient who is 175 cm tall, using all the standard clinical formulas in kilograms."},{"title":"Fitness app onboarding benchmark","prompt":"For a male who is 6 feet tall, what do the four ideal weight formulas say his target weight should be in both kg and lb, and what's the average across them?"}],"resultDescription":"Returns ideal body weight estimates in kg and lb from four clinical formulas (Devine, Robinson, Miller, Hamwi), plus an average across them, the input height in both cm and inches, a summary verdict, and a medical disclaimer. May include degraded flag and reasons if the calculation is incomplete.","failureModes":["Missing required 'sex' parameter returns error","Height not provided may result in null or degraded results","Invalid sex value (not 'male' or 'female') may cause unexpected behavior","Mixing metric/imperial parameters (e.g. providing both height and heightIn) may yield inconsistent results","Very extreme height values may produce unreliable formula outputs"],"whenToPreferThis":"Use this endpoint when you need clinically-grounded ideal body weight estimates across multiple established formulas simultaneously. It's ideal for health, fitness, and nutrition applications that need to present multiple reference standards rather than a single number, or that need both metric and imperial outputs. Prefer it over BMI-based tools when the goal is a weight target rather than a weight classification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T00:35:45.155Z","isFirstParty":false,"canonicalSlug":"ideal-body-weight-calculator-devine-robinson-miller-hamwi-c78b015d"}