{"op":"convert","value":1.0,"from":"kilometer","to":"mile","dimension":"length","result":0.621371192237334,"conversion_factor":0.621371192237334,"exact":true,"source":"NIST SP 811 (2008), Appendix B; BIPM SI Brochure 9th ed.","conversion_factor_ratio":"15625/25146","demo":true,"demo_inputs":{"value":1.0,"from":"km","to":"mi"},"note":"No inputs were given, so this is a worked example on default inputs — the same computation the paid route performs. Pass your own query parameters (see /openapi.json) for a real answer."}