How weight converter works
This converter changes a weight from one unit to every other supported unit in a single step. It works by first converting the input to grams (the base unit), then dividing by the target unit factor. For example, 1 kilogram becomes 2.20462 pounds because one pound is exactly 453.592 grams.
The metric units (kilogram, gram, milligram, metric ton) are related by powers of 1000. The imperial units (pound, ounce, stone) use exact conversion factors: 1 pound = 453.592 grams, 1 ounce = 28.3495 grams, 1 stone = 6350.29 grams.
Results are rounded to six decimal places for readability. Very large or very small values are shown in scientific notation. The conversion runs live as you type, so you can experiment with values instantly.