APIs › Petroleum Engineering Calculators › Temperature Converter

Temperature Converter

Converts among Celsius, Fahrenheit, Kelvin and Rankine with absolute-zero bounds enforced.

POST /v1/petroleum/temperature-convert $0.005 per call

Specification

Endpoint

POST /v1/petroleum/temperature-convert

Price

$0.005 per call · tier basic_data

Payment

x402 on X Layer (chain 196) · settled in USDG or USDT0 · schemes exact, aggr_deferred

Data source

Published petroleum-engineering correlations, cited per endpoint

Timeout

15 seconds

Max request

64 KB

Version

1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape.

curl -i -X POST "https://api.dana-edu.pp.ua/v1/petroleum/temperature-convert" \
  -H "content-type: application/json" \
  -d '{ ... }'

Response

Real output, captured by running this endpoint at build time — not written by hand. Volatile fields such as timestamps are elided. Captured 2026-07-30.

{
  "input": {
    "value": 180,
    "unit": "f"
  },
  "output": {
    "value": 82.2222,
    "unit": "c"
  },
  "all_units": {
    "c": 82.2222,
    "f": 180,
    "k": 355.3722,
    "r": 639.67
  },
  "note": "Rankine is the absolute scale used with Fahrenheit in field units."
}

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

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