{"uid":"cap_HY78y81s8zRusFUmgnvPW","slug":"jewelry-maker-calc-metal-casting-weight-c17d13ab","name":"Jewelry Maker Calc – Metal Casting Weight","description":"Casting weight in grams, pennyweight and troy ounces from volume or wax model weight, for gold, silver, platinum and more.","url":"https://jewelry-calc.x402tookit.com/metal-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":["metal"],"properties":{"metal":{"type":"string","description":"One of: fine-gold-24k, yellow-gold-18k, yellow-gold-14k, yellow-gold-10k, white-gold-14k, rose-gold-14k, sterling-silver, fine-silver, platinum, palladium, brass, bronze, copper, titanium, stainless-steel"},"waxGrams":{"type":"number","description":"Weight of the wax model in grams (lost-wax casting)"},"volumeCm3":{"type":"number","description":"Piece volume in cubic centimetres (use this or waxGrams or volumeMm3)"},"volumeMm3":{"type":"number","description":"Piece volume in cubic millimetres"},"waxDensity":{"type":"number","description":"Wax density in g/cm3 for waxGrams (default 0.95)"},"wastePercent":{"type":"number","description":"Extra metal for sprues and button as a percent of the piece (default 0)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"metal":{"type":["null","string"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"pieceDwt":{"type":["null","number"]},"volumeCm3":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"pieceGrams":{"type":["null","number"]},"wastePercent":{"type":["null","number"]},"withWasteGrams":{"type":["null","number"]},"pieceTroyOunces":{"type":["null","number"]},"waxToMetalFactor":{"type":["null","number"]},"densityGramsPerCm3":{"type":["null","number"]},"withWasteTroyOunces":{"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_Sqtgg1dx_pGQss_vxMw8P","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 the casting weight of metal jewelry pieces (in grams, pennyweight, and troy ounces) from a wax model weight or volume, for 15+ metals including gold alloys, silver, platinum, and more.","exampleAgentPrompt":"I have a wax model that weighs 4.5 grams and I'm planning to cast it in 14k yellow gold — can you tell me the expected casting weight in grams, pennyweight, and troy ounces, including a 10% waste allowance for sprues?","exampleUseCases":[{"title":"Lost-wax casting material estimate","prompt":"My wax model weighs 3.8 grams and I want to cast it in sterling silver — what will the finished piece weigh in grams and troy ounces, and how much extra metal should I order for a 15% sprue waste?"},{"title":"Platinum ring volume-based weight calc","prompt":"I have a platinum ring design with a volume of 2.4 cubic centimetres — how much will it weigh in grams and pennyweight after casting?"},{"title":"Comparing gold alloy casting weights","prompt":"If my wax model is 5 grams, what would the casting weight be in grams and troy ounces for 18k yellow gold versus 14k white gold? Use a standard wax density."}],"resultDescription":"Returns the piece weight in grams, pennyweight (dwt), and troy ounces, along with total weight including waste, volume in cm³, the wax-to-metal conversion factor used, metal density in g/cm³, and a summary. May include a disclaimer if operating in degraded mode.","failureModes":["Missing required 'metal' query parameter returns an error","None of waxGrams, volumeCm3, or volumeMm3 provided — endpoint cannot compute without at least one volume/weight input","Invalid metal identifier (not in the allowed enum) causes a validation error","Very large or zero volume/wax values may return implausible results without explicit error"],"whenToPreferThis":"Use this endpoint when you need to convert a wax model weight or known piece volume into casting metal weight for jewelry production. It supports 15+ specific metal alloys with real density data and handles lost-wax casting conventions (wax density, sprue waste). Prefer this over generic unit converters when you need jewelry-specific outputs like pennyweight and proper alloy density.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:14:24.831Z","isFirstParty":false,"canonicalSlug":"jewelry-maker-calc-metal-casting-weight-c17d13ab"}