All tools / Unit Converter3 tonnes to kg3 tonnes = 3,000 kgFormula1 tonnes = 1,000 kg, so 3 × 1,000 = 3,000Need another value? Use the full Unit ConverterOther tonnes → kg conversions1 tonnes → kg2 tonnes → kg5 tonnes → kg10 tonnes → kg15 tonnes → kg20 tonnes → kgRelated conversions1 kg → pounds1 pounds → kg1 grams → ounces1 ounces → grams1 kg → grams1 pounds → ounces