The weight converter handles common metric and avoirdupois mass units: milligrams, grams, kilograms, metric tonnes, ounces, and pounds. It converts through grams using exact international pound and ounce relationships.
How to use this calculator
Enter the value and select source and target units. The metric tonne in this tool equals 1,000 kilograms. Ounces and pounds use the common avoirdupois system, not troy units used for precious metals.
Formula & calculation method
Grams = input × source factor; output = grams / target factorOne avoirdupois pound is exactly 453.59237 grams and one ounce is exactly 28.349523125 grams. The kilogram is 1,000 grams and the metric tonne is 1,000,000 grams.
Worked example
One kilogram is approximately 2.20462 pounds. One pound equals 16 ounces exactly. Converting back to the original unit should reproduce the input apart from tiny floating-point display differences.
Why this is useful
Exact base factors and a single conversion path make results consistent across all unit pairs. The tool supports cooking, shipping, shopping, fitness records, and general measurement conversions.
Limitations to keep in mind
This is mass-unit conversion, not a calculation of nutritional weight loss or density. It does not convert between weight and volume, which would require the substance's density, and it does not use troy ounces.
Frequently asked questions
Is a metric tonne the same as a US ton?
No. A metric tonne is 1,000 kilograms. A US short ton is 2,000 pounds and is not included in this converter.
Are these troy ounces?
No. They are avoirdupois ounces used for everyday goods. Precious-metal troy ounces have a different mass.
Can I convert kilograms to liters?
Not with weight conversion alone. You also need the material's density and compatible units.