Converter

Weight Converter — kg ↔ lb

The weight converter instantly converts between kilograms (kg), pounds (lb), and stone — the three weight units most commonly encountered in clinical and everyday settings. Nurses use this tool to convert patient weight for drug dosing, BMI calculation, and documentation when patients report their weight in a different unit. 1 kilogram equals 2.20462 pounds; 1 stone equals 6.35 kilograms.

Converted Values
Enter a value above

Formulas

kg → lb: multiply by 2.20462
lb → kg: divide by 2.20462
1 stone = 6.35029 kg = 14 lb
📖 Formula source: BIPM. The International System of Units (SI), 9th edition. 2019.

Reference Conversion Table

kglbStone

Related Calculators

Frequently Asked Questions

How many pounds is 1 kilogram?

1 kilogram equals 2.20462 pounds. To convert kg to lb, multiply by 2.20462. To convert lb to kg, divide by 2.20462. For example, a patient weighing 70 kg weighs approximately 154.3 lb.

How many kg is 1 stone?

1 stone equals 6.35029 kg, or 14 pounds. Stone is commonly used in the UK and Ireland. To convert stone to kg, multiply by 6.35.

For informational purposes only. Always verify patient weight with a calibrated scale before drug dosing.