How it's calculated
1 lb = 1 pound (kg = lb × 0.453592)
“lbs” is just the plural abbreviation of “pound” — same unit, 1:1. Side conversions: kg = lb × 0.453592, oz = lb × 16, stone = lb ÷ 14.
Common questions
Why is pound abbreviated lbs?
It comes from the Latin libra pondo, a unit of weight. The lb takes its letters from libra.
Are lbs and pounds ever different?
No. They are the same avoirdupois pound, defined as exactly 0.45359237 kilograms since 1959.