{"uid":"cap_O-xOBlrYXE-NnvQllxb4Y","slug":"abv-calculator-from-original-and-final-gravity-d9fe4480","name":"ABV Calculator from Original and Final Gravity","description":"Beer, wine and cider alcohol by volume from original and final gravity, with both standard formulas and attenuation.","url":"https://cooking-calc.x402tookit.com/abv-gravity?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":["originalGravity","finalGravity"],"properties":{"finalGravity":{"type":"number","description":"Specific gravity after fermentation, 0.980 to 1.200 and not above the original"},"originalGravity":{"type":"number","description":"Specific gravity before fermentation, 1.000 to 1.200, for example 1.050"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"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"]},"abvPercent":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"finalGravity":{"type":["null","number"]},"gravityPoints":{"type":["null","number"]},"abvRangePercent":{"type":["array","null"],"items":{"type":"number"}},"originalGravity":{"type":["null","number"]},"abvSimplePercent":{"type":["null","number"]},"preferredFormula":{"type":["null","string"]},"abvAdvancedPercent":{"type":["null","number"]},"apparentAttenuationPercent":{"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_eGL3vMAQvjuz4YEn0I09m","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 alcohol by volume (ABV) for beer, wine, and cider using original and final specific gravity readings, returning both simple and advanced formula results plus apparent attenuation.","exampleAgentPrompt":"My homebrew started at an original gravity of 1.052 and finished at 1.012 — can you calculate the ABV using both the simple and advanced formulas, and tell me the apparent attenuation?","exampleUseCases":[{"title":"Homebrew beer strength check","prompt":"My pale ale had an original gravity of 1.058 and fermented down to a final gravity of 1.010 — what's the ABV and apparent attenuation?"},{"title":"Homemade wine alcohol estimate","prompt":"I made a batch of white wine with an OG of 1.090 and it finished at 1.005, what alcohol percentage did I end up with?"},{"title":"Cider fermentation complete verification","prompt":"My hard cider started at 1.045 original gravity and is now reading 0.998 final gravity — can you tell me the ABV using both the standard and advanced formula?"}],"resultDescription":"Returns the calculated ABV as a percentage using both simple and advanced formulas, an ABV range, apparent attenuation percentage, gravity points, the preferred formula recommendation, and metadata such as source and disclaimer notes.","failureModes":["Final gravity above original gravity returns an error or invalid result","Gravity values outside the accepted range (OG 1.000–1.200, FG 0.980–1.200) may be rejected","Missing required query parameters originalGravity or finalGravity returns a 400-level error","Non-numeric gravity values cause a validation failure","Extremely high gravity readings typical of mead or liqueur may fall outside expected range"],"whenToPreferThis":"Choose this endpoint when you need to compute ABV from hydrometer or refractometer gravity readings for fermented beverages (beer, wine, cider). It is uniquely useful because it returns both simple and advanced formula results alongside apparent attenuation, making it suitable for homebrewers who want to cross-check methods. Prefer this over generic unit converters or nutrition databases when your input is raw specific gravity numbers from fermentation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:37:48.054Z","isFirstParty":false,"canonicalSlug":"abv-calculator-from-original-and-final-gravity-d9fe4480"}