Guides
kg vs lb: a practical conversion guide
Exact definitions and common pitfalls for kilograms, pounds and tonnes.
Updated 2026-11-05
1 kilogram equals 2.20462 pounds; 1 pound equals 0.45359237 kilograms. These are exact definitions, not rough conversions.
The site stores kilograms internally and converts for display. A 100 kg object is about 220 lb; a 1 lb object is about 0.45 kg.
A US short ton is 907.18 kg, while a metric tonne is exactly 1,000 kg. When a source says 'ton', we default to the US short ton and note it on the item page.