{"id":"area-unit-convert","version":"1.0.0","description":"Convert an exact decimal area among ten SI, imperial, acre, and hectare units using pinned rational factors.","supported_operations":["convert square metres to square feet","area unit conversion","convert acres to hectares","square miles to square kilometres","exact square inch conversion","convert land area units","area conversion with exact fraction"],"unsupported_operations":["convert US survey feet or survey acres","convert length, volume, mass, or temperature","infer units from free text"],"semantics":["Accepts one untrimmed canonical decimal string and exact unit enum names; exponent notation, plus signs, whitespace, leading integer zeros, and negative zero are rejected.","Uses exact rational factors pinned to the international inch: 1 inch = 0.0254 metre exactly; US survey units are not supported.","Returns the reduced exact fraction plus a canonical decimal; repeating results use at most 40 fractional places and round nearest, ties to even.","At most 80 total decimal digits and 40 fractional digits are accepted; all size limits are enforced before return."],"limits":{"max_input_bytes":180,"max_value_bytes":96,"max_digits":80,"max_fraction_digits":40,"max_decimal_places":40,"max_output_bytes":512},"pricing":{"status":"unpriced","charge_usd":null},"input_schema":{"type":"object","additionalProperties":false,"required":["value","from_unit","to_unit"],"properties":{"value":{"type":"string","minLength":1,"maxLength":96,"pattern":"^-?(0|[1-9][0-9]*)(\\.[0-9]+)?$"},"from_unit":{"type":"string","enum":["square_millimetre","square_centimetre","square_metre","square_kilometre","square_inch","square_foot","square_yard","square_mile","acre","hectare"]},"to_unit":{"type":"string","enum":["square_millimetre","square_centimetre","square_metre","square_kilometre","square_inch","square_foot","square_yard","square_mile","acre","hectare"]}}},"output_schema":{"type":"object","additionalProperties":false,"required":["value","unit","exact_numerator","exact_denominator","rounded"],"properties":{"value":{"type":"string","minLength":1,"maxLength":160},"unit":{"type":"string","enum":["square_millimetre","square_centimetre","square_metre","square_kilometre","square_inch","square_foot","square_yard","square_mile","acre","hectare"]},"exact_numerator":{"type":"string","minLength":1,"maxLength":180,"pattern":"^-?(0|[1-9][0-9]*)$"},"exact_denominator":{"type":"string","minLength":1,"maxLength":180,"pattern":"^[1-9][0-9]*$"},"rounded":{"type":"boolean"}}},"examples":[{"input":{"value":"1","from_unit":"acre","to_unit":"square_metre"},"output":{"value":"4046.8564224","unit":"square_metre","exact_numerator":"316160658","exact_denominator":"78125","rounded":false}},{"input":{"value":"1","from_unit":"square_metre","to_unit":"square_foot"},"output":{"value":"10.7639104167097223083335055559000006888903","unit":"square_foot","exact_numerator":"1562500","exact_denominator":"145161","rounded":true}}],"execute_url":"/v1/tools/area-unit-convert/versions/1.0.0/execute"}