Weight Converter
Convert mass and weight measurements between kilograms, grams, milligrams, pounds, ounces, stones, and metric tons with high scientific precision.
How to Use the Weight Converter
Enter your weight or mass amount, select your starting unit, and choose your destination unit. The tool computes the converted value and renders a complete multi-unit equivalence grid.
Formula & Calculation Method
Value in Kg = Value × Factor(fromUnit) | Target = Value in Kg / Factor(toUnit)Standardized via international avoirdupois definitions: exactly 1 lb = 0.45359237 kg, 1 oz = 28.349523125 g, and 1 stone = 14 lb = 6.35029318 kg.
Calculation Examples
Kilograms to Pounds
Standard metric to avoirdupois conversion.
Pounds to Kilograms
150 × 0.45359237 = 68.038856 kg.
Stone to Pounds
11 × 14 = 154 pounds.
Frequently Asked Questions
How many pounds are in 1 kilogram?
One kilogram is approximately equal to 2.20462262 pounds. To convert kilograms to pounds, multiply by 2.20462.
What is a stone and how many pounds is it?
A stone is a traditional imperial unit of mass widely used in the United Kingdom and Ireland. Exactly 1 stone equals 14 pounds (approximately 6.35029 kg).
Does this converter preserve exact conversion factors?
Yes. All calculations use official international standard definitions (1 international avoirdupois pound = 0.45359237 kg) avoiding premature rounding.