Whether it's kg to lbs for the gym, grams to ounces for a recipe, or stone to pounds for a UK scale, this weight converter shows one value in every common unit at once — milligrams, grams, kilograms, tonnes, ounces, pounds and stones.
How to convert kg to lbs (and back)
One kilogram is about 2.2046 pounds; the definition actually runs the other way — the international pound is exactly 0.45359237 kg. Quick examples: 70 kg ≈ 154.3 lb, 100 kg ≈ 220.5 lb; and to go from pounds to kilograms, divide by 2.2 (180 lb ≈ 81.6 kg).
Ounces, stones and tonnes explained
A pound is 16 ounces, so one ounce is 28.3495 g — the unit of chocolate bars and postal scales. The stone (14 lb ≈ 6.35 kg) survives mainly in Britain and Ireland for body weight: "11 stone 6" means 11×14 + 6 = 160 lb. The metric tonne is exactly 1,000 kg — close to, but not the same as, the US short ton (907 kg).
Mass vs weight — a fine point
Strictly, all these units measure mass (how much matter), while weight is the force gravity exerts on that mass. On Earth the two track each other, so everyday use treats them as interchangeable — but on the Moon your mass stays the same while your weight drops to a sixth. (Curious? Try the weight on other planets calculator.)
Everyday anchors
A liter of water is 1 kg; a US nickel is 5 g; a baseball is about 145 g; a typical adult ranges 60–90 kg (132–198 lb, or 9.5–14 stone). For lengths and areas, see the length and area converters.