{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-05-20T20:47:38.345Z","discovery":{"catalog":"https://toolsly.tools/tools.json","llmsTxt":"https://toolsly.tools/llms.txt","sitemap":"https://toolsly.tools/sitemap.xml"},"relatedTools":[{"slug":"bmi-calculator","name":"BMI Calculator","url":"https://toolsly.tools/bmi-calculator"},{"slug":"percentage-calculator","name":"Percentage Calculator","url":"https://toolsly.tools/percentage-calculator"},{"slug":"age-calculator","name":"Age Calculator","url":"https://toolsly.tools/age-calculator"},{"slug":"date-difference","name":"Date Difference Calculator","url":"https://toolsly.tools/date-difference"},{"slug":"tip-calculator","name":"Tip Calculator","url":"https://toolsly.tools/tip-calculator"},{"slug":"timezone-converter","name":"Timezone Converter","url":"https://toolsly.tools/timezone-converter"},{"slug":"aspect-ratio-calculator","name":"Aspect Ratio Calculator","url":"https://toolsly.tools/aspect-ratio-calculator"},{"slug":"bytes-converter","name":"Bytes Converter","url":"https://toolsly.tools/bytes-converter"}],"kind":"utility","slug":"weight-converter","name":"Weight Converter","description":"Convert between metric and imperial weight units — mg, g, kg, tonnes, ounces, pounds, stone, US tons.","longDescription":"Convert any mass from milligrams to US short tons. Uses the exact international definitions (1 lb = 453.59237 g, 1 oz = 1/16 lb, 1 stone = 14 lb, 1 US short ton = 2,000 lb), so imperial-to-metric conversions are precise rather than rounded. The table at the bottom shows your value in every common unit at once. Runs entirely in your browser.","category":"calc","categoryName":"Calculators","keywords":["weight converter","mass converter","kg to lbs","lbs to kg","lb to kg","g to oz","oz to g","stone to lbs","stone to kg","tonnes to tons","grams to ounces","mg to g","pounds to kilograms","kilograms to pounds"],"badge":"Converter","url":"https://toolsly.tools/weight-converter","inputs":[{"type":"number","key":"value","label":"Value","defaultValue":1,"step":0.0001},{"type":"select","key":"from","label":"From","defaultValue":"kg","choices":[{"value":"mg","label":"mg (milligram)"},{"value":"g","label":"g (gram)"},{"value":"kg","label":"kg (kilogram)"},{"value":"t","label":"t (metric tonne)"},{"value":"oz","label":"oz (ounce)"},{"value":"lb","label":"lb (pound)"},{"value":"st","label":"st (stone, 14 lb)"},{"value":"ton","label":"ton (US short ton, 2000 lb)"}]},{"type":"select","key":"to","label":"To","defaultValue":"lb","choices":[{"value":"mg","label":"mg (milligram)"},{"value":"g","label":"g (gram)"},{"value":"kg","label":"kg (kilogram)"},{"value":"t","label":"t (metric tonne)"},{"value":"oz","label":"oz (ounce)"},{"value":"lb","label":"lb (pound)"},{"value":"st","label":"st (stone, 14 lb)"},{"value":"ton","label":"ton (US short ton, 2000 lb)"}]}],"outputs":[{"key":"converted","label":"Converted value"},{"key":"grams","label":"In grams"},{"key":"table","label":"All units","multiline":true}],"invocation":{"webUi":"https://toolsly.tools/weight-converter","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}