{"uid":"cap_wmgQpasm_TaRlWdZ79Uic","slug":"paper-print-calc-iso-216-paper-size-lookup-9d5e0ca9","name":"Paper & Print Calc – ISO 216 Paper Size Lookup","description":"ISO 216 size in mm, inches and points for A0-A10, B0-B10, C0-C10, with area, aspect ratio and the neighbouring sizes.","url":"https://paper-print-calc.x402tookit.com/iso-paper?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":["series","size"],"properties":{"size":{"type":"integer","description":"Size number 0 to 10 (A4 is series A, size 4)"},"series":{"type":"string","description":"A, B or C"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"name":{"type":["null","string"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"widthMm":{"type":["null","number"]},"degraded":{"type":["boolean","null"]},"heightMm":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"nextLarger":{"type":["null","object"],"properties":{"name":{"type":["null","string"]},"width":{"type":["null","number"]},"height":{"type":["null","number"]}}},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"aspectRatio":{"type":["null","number"]},"nextSmaller":{"type":["null","object"],"properties":{"name":{"type":["null","string"]},"width":{"type":["null","number"]},"height":{"type":["null","number"]}}},"widthInches":{"type":["null","number"]},"widthPoints":{"type":["null","number"]},"heightInches":{"type":["null","number"]},"heightPoints":{"type":["null","number"]},"areaSquareMeters":{"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_aBkZulEFzpsMplsoCVQ3k","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":"Returns ISO 216 paper dimensions in mm, inches, and points for any A, B, or C series size (0–10), plus area, aspect ratio, and neighboring sizes.","exampleAgentPrompt":"What are the dimensions of A4 paper — can you give me the width and height in mm, inches, and points, and also tell me what the next larger and next smaller sizes are?","exampleUseCases":[{"title":"Typesetting page dimensions for a document","prompt":"I'm setting up a new document in my layout software and need the exact dimensions of B5 paper in points and inches — can you also tell me the aspect ratio and what sizes are immediately larger and smaller?"},{"title":"Comparing ISO envelope and sheet sizes","prompt":"I need the dimensions of C5 paper in mm and inches so I can check if it'll fit in an envelope — also tell me its area in square meters and the neighboring sizes."},{"title":"Print production spec check","prompt":"For a print job I'm quoting, what are the full specs for A0 paper — width and height in mm, inches, and points, area, and what A-series sizes are adjacent to it?"}],"resultDescription":"A JSON object containing the paper size name, width and height in millimeters, inches, and typographic points, the area in square meters, the aspect ratio, and objects describing the next larger and next smaller sizes (each with name, width, and height).","failureModes":["Missing required 'series' or 'size' query parameter returns an error","Invalid series value (not A, B, or C) returns an error","Size number outside 0–10 range returns an error or null result","Edge sizes (e.g. A0 or A10) may return null for the next larger or next smaller neighbor respectively"],"whenToPreferThis":"Use this endpoint when you need precise ISO 216 standard paper dimensions across multiple unit systems (mm, inches, points) in a single call, especially when you also need neighboring sizes or area — ideal for print production, document layout, and typographic workflows. Prefer this over manual lookup tables when building automated print-spec pipelines or design tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T00:30:48.075Z","isFirstParty":false,"canonicalSlug":"paper-print-calc-iso-216-paper-size-lookup-9d5e0ca9"}