Free Kg to Pounds Converter
Published: 14 November 2026 · Updated: 14 November 2026
Convert kilograms to pounds instantly with the exact legal factor — no sign-up, no waiting. Type in either box and the other updates at once, and the table below shows stones and pounds too, which is how body weight is still talked about in the United Kingdom.
70 kg is 154.3236 lb. Multiply kilograms by 2.2046226218 to get pounds, because 1 lb is defined as exactly 0.45359237 kg. A 23 kg checked bag is 50.7063 lb — just over the 50 lb limit many US airlines print, so weigh the packed bag before you fly.
Researched by MixKhazana Team · Last updated 14 November 2026 · Data: International Yard and Pound Agreement 1959 (1 lb = 0.45359237 kg exactly), NIST Special Publication 811
Free Kg to Pounds Converter
70 kg = 154.3236 lb
1 kg = 2.2046226218 lb
What is a kilogram? What is a pound?
The kilogram is the base unit of mass in the International System of Units (SI), the metric system used across Europe and almost everywhere else in the world. One kilogram is 1,000 grams, and since 20 May 2019 it has been defined through the Planck constant, a fixed value in nature, rather than through a physical object kept in a vault. In everyday terms, a litre of water weighs about 1 kg, and a bag of sugar from a European supermarket usually weighs exactly 1 kg.
The pound is the everyday unit of weight in the United States and, alongside the stone, in the United Kingdom. Since the International Yard and Pound Agreement of 1959, the pound used in both countries has been defined as exactly 0.45359237 kg — the same pound on both sides of the Atlantic. One pound holds 16 ounces, and 14 pounds make one stone, the unit still used for body weight in Britain. So when a US chart says 154 lb and a British chart says 11 stone, they are describing the same 70 kg person.
Strictly, scales measure weight, which is a force, while kilograms and pounds are units of mass. In daily life the two are treated as the same thing, because gravity is near enough constant wherever you stand on Earth. This converter follows everyday usage: it converts the numbers on the scale.
How to use
- Type a weight in kilograms in the left box — the pounds appear instantly on the right, with no button to press.
- Or type in the pounds box instead: both boxes are editable, and typing in either one updates the other at once.
- Press Swap to flip the direction. The converted value carries over as the new starting number, so you can keep converting back and forth.
- Read the result line for the full conversion, and the line under it for the rate: 1 kg = 2.2046226218 lb. For body weight in British units, check the stones-and-pounds column in the table below.
Kg to pounds formula
Converting kilograms to pounds is a single multiplication with an exact factor:
lb = kg × 2.2046226218
And the reverse direction divides by the same factor, or multiplies by its exact reciprocal:
kg = lb × 0.45359237
- lb — weight in pounds (avoirdupois pounds, the common pound)
- kg — weight in kilograms
- 2.2046226218 — pounds in one kilogram (1 ÷ 0.45359237)
- 0.45359237 — kilograms in one pound, exact by definition since 1959
For stones and pounds, divide the pounds by 14: st = lb ÷ 14, keeping the whole stones and the leftover pounds. The table below does that step for you. If you need other units in one place, the general unit converter covers more units than any single page here.
Worked example
A traveller packs a checked bag and the bathroom scale reads 23 kg. The airline's US website states the limit as 50 lb. Is the bag over?
- Formula: lb = kg × 2.2046226218
- 23 × 2.2046226218 = 50.7063 lb
- In stones: 50.7063 ÷ 14 = 3 stone, with 8.7 lb left over — 3 st 8.7 lb
- The 50 lb limit equals 22.6796 kg, so the 23 kg bag is 0.7063 lb over — take one item out
Try it above: type 23 in the kilograms box and the converter shows 50.7063 lb at once.
Kg to pounds conversion table
| Kilograms | Pounds | Stones and pounds |
| 0.5 | 1.1023 lb | 0 st 1.1 lb |
| 1 | 2.2046 lb | 0 st 2.2 lb |
| 2 | 4.4092 lb | 0 st 4.4 lb |
| 5 | 11.0231 lb | 0 st 11 lb |
| 10 | 22.0462 lb | 1 st 8 lb |
| 25 | 55.1156 lb | 3 st 13.1 lb |
| 40 | 88.1849 lb | 6 st 4.2 lb |
| 55 | 121.2542 lb | 8 st 9.3 lb |
| 70 | 154.3236 lb | 11 st 0.3 lb |
| 85 | 187.3929 lb | 13 st 5.4 lb |
| 100 | 220.4623 lb | 15 st 10.5 lb |
| 120 | 264.5547 lb | 18 st 12.6 lb |
Pounds are shown to four decimal places; stones-and-pounds leftovers are rounded to one decimal place. Every value is computed from the exact factor 1 lb = 0.45359237 kg.
Everyday benchmarks: body weight, luggage, and food
These are the conversions people actually look up, computed with the exact factor:
- Newborn baby, 3.5 kg — 7.7162 lb (0 st 7.7 lb). Hospital charts in Europe record grams; US charts record pounds and ounces.
- Adult body weight — 50 kg is 110.2311 lb (7 st 12.2 lb); 70 kg is 154.3236 lb (11 st 0.3 lb); 90 kg is 198.416 lb (14 st 2.4 lb).
- Cabin bag, 10 kg — 22.0462 lb. Many European airlines cap cabin bags at 10 kg; US airlines usually cap by size instead.
- Checked bag, 23 kg — 50.7063 lb, just over the common 50 lb US limit. The 32 kg heavy-bag cap is 70.5479 lb.
- Gym plate, 20 kg — 44.0925 lb. The standard European barbell plate is a fraction lighter than the 45 lb US plate (20.4117 kg).
- Bag of flour, 2.5 kg — 5.5116 lb. European recipes weigh flour in grams; US recipes often measure it in cups, which is why weights travel better across borders.
- Litre of water, about 1 kg — 2.2046 lb. A litre of milk is slightly heavier, about 1.03 kg.
For the background on why Europe and the US ended up with different systems, read the metric vs imperial conversion guide for Europe.
Frequently asked questions
How many pounds is 1 kg?
1 kilogram is 2.2046226218 pounds. For everyday use, 1 kg is about 2.2 lb, so you can double the kilograms and add 10 percent for a quick estimate: 50 kg is about 110 lb.
How do I convert kg to pounds by hand?
Multiply the kilograms by 2.2046226218. For example, 70 kg times 2.2046226218 equals 154.3236 lb. If you only need a rough answer, multiply by 2.2 instead.
How many pounds is 70 kg?
70 kg is 154.3236 lb, or 11 stone 0.3 lb. Seventy kilograms is a common adult body weight, and 154 lb is the figure you will see on charts written for the United States.
What is 1 kg in stones and pounds?
1 kg is 0.157473 stone, which is 2.2046 lb. In stones and pounds, 1 kg is 0 stone 2.2 lb. A stone is 14 lb, so divide pounds by 14 to get stones.
Is 1 kg exactly 2.2 pounds?
No. 2.2 lb is a rounded shortcut. The exact value is 2.2046226218 lb, because 1 lb is defined as exactly 0.45359237 kg. The shortcut is off by about 0.2 percent, which matters for luggage limits and medical doses but not for recipes.
Why does the United States use pounds instead of kilograms?
The United States kept the imperial and US customary system for everyday life, so body weight, food labels, and luggage limits are usually given in pounds. Most of the world, including all of Europe, uses kilograms. This converter bridges the two.
How many kg is 1 pound?
1 pound is exactly 0.45359237 kg, or 453.59237 grams. To go the other way, use the pounds to kg converter linked below, or divide pounds by 2.2046226218.
Can I use this converter for luggage weight?
Yes. Airline limits are a common reason to convert: a 23 kg checked bag is 50.7063 lb, and a 32 kg bag is 70.5479 lb. Always weigh the packed bag on a scale before you travel, because airline staff go by the scale, not by a conversion.
Sources
- NIST Special Publication 811 — Guide for the Use of the International System of Units (SI).
- BIPM SI Brochure — The International System of Units, including the 2019 definition of the kilogram.
- International Yard and Pound Agreement, 1959 — 1 lb = 0.45359237 kg exactly.
- NIST Handbook 44, Appendix C — conversion factors for mass and weight.
Disclaimer: This converter uses the exact factor 1 lb = 0.45359237 kg; results are rounded for display, so use a calibrated scale for trade, medical, or legal weighing.