{"id":"volume-unit-convert","version":"1.0.0","description":"Convert exact decimal volumes among SI, cubic, US liquid, and imperial units with explicit half-even rounding.","supported_operations":["convert volume units exactly","liters to US gallons","imperial gallons to liters","convert cubic feet to cubic meters","US fluid ounces to milliliters","compare US and imperial gallons","exact cubic inch volume conversion"],"unsupported_operations":["convert mass or weight units","convert dry-volume or cooking-cup units","infer units from free-form text"],"semantics":["Input value is a canonical signed base-10 decimal string without exponent notation or redundant leading zeros.","Factors are exact rational liters per unit: the international inch is exactly 25.4 mm, the US liquid gallon is 231 cubic inches, and the imperial gallon is 4.54609 liters.","US liquid and imperial gallons, quarts, pints, and fluid ounces are distinct units and are never aliases.","exact_fraction is reduced; value uses integer round-half-to-even at optional precision 0..50 (default 18), then removes trailing fractional zeros and negative zero.","All validation and arithmetic are synchronous, bounded, locale-independent, offline, and deterministic."],"limits":{"max_input_bytes":256,"max_value_chars":100,"max_precision":50,"max_output_bytes":1024},"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":100,"pattern":"^[+-]?(?:0|[1-9][0-9]*)(?:\\.[0-9]+)?$"},"from_unit":{"type":"string","enum":["milliliter","liter","cubic_centimeter","cubic_meter","cubic_inch","cubic_foot","us_fluid_ounce","us_pint","us_quart","us_gallon","imperial_fluid_ounce","imperial_pint","imperial_quart","imperial_gallon"]},"to_unit":{"type":"string","enum":["milliliter","liter","cubic_centimeter","cubic_meter","cubic_inch","cubic_foot","us_fluid_ounce","us_pint","us_quart","us_gallon","imperial_fluid_ounce","imperial_pint","imperial_quart","imperial_gallon"]},"precision":{"type":"integer","minimum":0,"maximum":50}}},"output_schema":{"type":"object","additionalProperties":false,"required":["value","exact_fraction","from_unit","to_unit"],"properties":{"value":{"type":"string","minLength":1,"maxLength":256,"pattern":"^-?(?:0|[1-9][0-9]*)(?:\\.[0-9]+)?$"},"exact_fraction":{"type":"string","minLength":3,"maxLength":512,"pattern":"^-?(?:0|[1-9][0-9]*)/[1-9][0-9]*$"},"from_unit":{"type":"string","enum":["milliliter","liter","cubic_centimeter","cubic_meter","cubic_inch","cubic_foot","us_fluid_ounce","us_pint","us_quart","us_gallon","imperial_fluid_ounce","imperial_pint","imperial_quart","imperial_gallon"]},"to_unit":{"type":"string","enum":["milliliter","liter","cubic_centimeter","cubic_meter","cubic_inch","cubic_foot","us_fluid_ounce","us_pint","us_quart","us_gallon","imperial_fluid_ounce","imperial_pint","imperial_quart","imperial_gallon"]}}},"examples":[{"input":{"value":"1","from_unit":"us_gallon","to_unit":"liter"},"output":{"value":"3.785411784","exact_fraction":"473176473/125000000","from_unit":"us_gallon","to_unit":"liter"}},{"input":{"value":"1","from_unit":"imperial_gallon","to_unit":"us_gallon","precision":12},"output":{"value":"1.200949925505","exact_fraction":"568261250/473176473","from_unit":"imperial_gallon","to_unit":"us_gallon"}}],"execute_url":"/v1/tools/volume-unit-convert/versions/1.0.0/execute"}