Understand the basic relationship: Remember that 1 kilogram is roughly equal to 2.2 pounds. Scale conversions: Use this foundation to estimate weights easily; for example, 10 kg ≈ 22 lbs, 100 kg ...

For example, if a child weighs 46 lb, subtract 4 (the first digit) from 46 (the child’s weight in pounds). This gives you 42. Divide by two to get 21 kg. It works every time!

Formula: kg = pounds × 0.4536 From kilograms to pounds: Multiply the kilogram value by 2.2046 for good accuracy, or by 2.20462262 for precise calculations. Formula: pounds = kg × 2.2046 ...