{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-10-20T13:00:48.456Z","discovery":{"catalog":"https://toptool.io/free-tools/tools.json","llmsTxt":"https://toptool.io/free-tools/llms.txt","sitemap":"https://toptool.io/free-tools/sitemap.xml"},"relatedTools":[{"slug":"weight-converter","name":"Weight Converter","url":"https://toptool.io/free-tools/weight-converter"},{"slug":"volume-converter","name":"Volume Converter","url":"https://toptool.io/free-tools/volume-converter"},{"slug":"speed-converter","name":"Speed Converter","url":"https://toptool.io/free-tools/speed-converter"},{"slug":"bmi-calculator","name":"BMI Calculator","url":"https://toptool.io/free-tools/bmi-calculator"},{"slug":"bytes-converter","name":"Bytes Converter","url":"https://toptool.io/free-tools/bytes-converter"},{"slug":"temperature-converter","name":"Temperature Converter","url":"https://toptool.io/free-tools/temperature-converter"},{"slug":"salary-converter","name":"Salary Converter","url":"https://toptool.io/free-tools/salary-converter"},{"slug":"roman-numeral-converter","name":"Roman Numeral Converter","url":"https://toptool.io/free-tools/roman-numeral-converter"}],"kind":"utility","slug":"length-converter","name":"Length Converter","description":"Convert between metric and imperial length units — mm, cm, m, km, inches, feet, yards, miles.","longDescription":"Drop in a value, pick the source and target units, and get the conversion plus a full table covering every unit from millimeters to miles. Uses the international definitions (1 inch = 25.4 mm exactly, 1 mile = 1609.344 m exactly), so the imperial-to-metric conversions are exact and not rounded approximations. Runs entirely in your browser.","category":"calc","categoryName":"Calculators","keywords":["length converter","distance converter","cm to inches","inches to cm","feet to meters","meters to feet","miles to km","km to miles","mm to inches","yards to meters","metric to imperial","imperial to metric","length unit calculator","convert length"],"badge":"Converter","runsOn":"client","url":"https://toptool.io/free-tools/length-converter","inputs":[{"type":"number","key":"value","label":"Value","defaultValue":100,"step":0.0001},{"type":"select","key":"from","label":"From","defaultValue":"m","choices":[{"value":"mm","label":"mm (millimeter)"},{"value":"cm","label":"cm (centimeter)"},{"value":"m","label":"m (meter)"},{"value":"km","label":"km (kilometer)"},{"value":"in","label":"in (inch)"},{"value":"ft","label":"ft (foot)"},{"value":"yd","label":"yd (yard)"},{"value":"mi","label":"mi (mile)"}]},{"type":"select","key":"to","label":"To","defaultValue":"ft","choices":[{"value":"mm","label":"mm (millimeter)"},{"value":"cm","label":"cm (centimeter)"},{"value":"m","label":"m (meter)"},{"value":"km","label":"km (kilometer)"},{"value":"in","label":"in (inch)"},{"value":"ft","label":"ft (foot)"},{"value":"yd","label":"yd (yard)"},{"value":"mi","label":"mi (mile)"}]}],"outputs":[{"key":"converted","label":"Converted value"},{"key":"meters","label":"In meters"},{"key":"table","label":"All units","multiline":true}],"invocation":{"webUi":"https://toptool.io/free-tools/length-converter","api":null,"notes":"Use the web UI to enter inputs and view the result; there is no public execution API."}}