{"slug":"aviation-calc-x402tookit-com-density-altitude-1b7a32","title":"Density altitude from field elevation, altimeter setting and temperature, exact ","host":"aviation-calc.x402tookit.com","method":"GET","resource":"https://aviation-calc.x402tookit.com/density-altitude","category":"other","description":"Density altitude from field elevation, altimeter setting and temperature, exact and by rule of thumb, with a performance flag.","price_listed":0.02,"price_asked":0.02,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":1154,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"altimeter":29.92,"elevationFt":5000,"oatC":30,"unit":"inhg"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"altimeter":{"description":"Altimeter setting: inHg like 29.92 or hPa like 1013","type":"number"},"elevationFt":{"description":"Field elevation in feet, -1500 to 30000","type":"number"},"oatC":{"description":"Outside air temperature in C, -60 to 60","type":"number"},"unit":{"description":"inhg (default) or hpa","type":"string"}},"required":["elevationFt","altimeter","oatC"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"airDensityKgM3":{"type":["null","number"]},"asOf":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"densityAltitudeAboveFieldFt":{"type":["null","number"]},"densityAltitudeFt":{"type":["null","number"]},"densityAltitudeRuleOfThumbFt":{"type":["null","number"]},"densityRatio":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"elevationFt":{"type":["null","number"]},"isaDeviationC":{"type":["null","number"]},"isaTemperatureAtPressureAltitudeC":{"type":["null","number"]},"notChecked":{"items":{"type":"string"},"type":["array","null"]},"oatC":{"type":["null","number"]},"pressureAltitudeFt":{"type":["null","number"]},"reasons":{"items":{"type":"string"},"type":["array","null"]},"source":{"type":["null","string"]},"stationPressureHpa":{"type":["null","number"]},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-21","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.02,"price_match":true,"latency_ms":1154,"error":null}],"description_full":"Density altitude from field elevation, altimeter setting and temperature, exact and by rule of thumb, with a performance flag.","last_updated":"2026-10-20T20:33:03.737Z","schemes":["exact"]}