Convert Kilogram to Pound
Convert kilograms to pounds instantly. 1 kilogram = 2.2046226218 pound — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Pound to Kilogram converter for the reverse conversion.
Units explained
Kilogram
The kilogram (kg) is the SI base unit of mass, defined by fixing the Planck constant h at 6.62607015E-34 J s.
From Greek 'khilioi' (thousand) plus 'gramma' (small weight).
The worldwide base unit of mass in science, commerce, and everyday life.
Adopted in 1795; redefined through the Planck constant on 20 May 2019.
Pound
The pound (lb) is a unit of mass equal to exactly 0.45359237 kilogram.
From Latin 'libra pondo' (a pound by weight); the symbol lb comes from 'libra'.
The primary weight unit in the United States and informally in the UK.
The international avoirdupois pound was fixed in the 1959 yard-and-pound agreement.
Kilogram to Pound conversion formula
The relationship between kilograms and pounds:
To convert kilograms to pounds, multiply the value in kilograms by 2.2046226218. To reverse, multiply pounds by 0.45359237.
How to use this converter
Type a value into the calculator. The result in pounds updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Pound to Kilogram converter for the reverse direction.
Step-by-step: convert kilograms to pounds
- Write down the value in kilograms (kg).
- Multiply that value by the factor 2.2046226218.
- The product is the equivalent value in pounds (lb).
- To reverse, multiply the pound value by 0.45359237.
Worked examples
Example 1 — Convert 1 kg to lb:
1 × 2.2046226218 = 2.2046226218 lb
Example 2 — Convert 100 kg to lb:
100 × 2.2046226218 = 220.4622621849 lb
Real-world example — Maritime depth conversion
A 10-kilogram sounding depth converts cleanly into pounds. Recreational divers and sailors translate between the two units whenever they read legacy charts against modern depth-sounder displays.
10 kg × 2.2046226218 = 22.0462262185 lb
Real-world example — Reference scenario in case of fallback
Conversion between human-scale length units is the everyday workflow of architecture, athletics, and apparel design — three of the most common contexts that span metric and imperial systems.
1 kg × 2.2046226218 = 2.2046226218 lb
Real-world example — Adult height conversion
A 1.8-kilogram-tall person measures a value in pounds that converts the height to the unit favoured by American forms, schools, or driver's licences. This is daily routine for anyone living between metric and imperial systems.
1.8 kg × 2.2046226218 = 3.9683207193 lb
Kilogram to Pound conversion table
Standard reference values for converting kilograms to pounds:
| Kilogram [kg] | Pound [lb] |
|---|---|
| 0.01 | 0.0220462262 |
| 0.1 | 0.2204622622 |
| 1 | 2.2046226218 |
| 2 | 4.4092452437 |
| 3 | 6.6138678655 |
| 4 | 8.8184904874 |
| 5 | 11.0231131092 |
| 10 | 22.0462262185 |
| 20 | 44.092452437 |
| 30 | 66.1386786555 |
| 40 | 88.184904874 |
| 50 | 110.2311310924 |
| 100 | 220.4622621849 |
| 500 | 1102.3113109244 |
| 1000 | 2204.6226218488 |
Frequently asked questions
How many pounds is 1 kilogram?
How do I convert kilograms to pounds?
How do I convert pounds back to kilograms?
How many pounds is 100 kilograms?
Popular weight unit conversions
Convert Kilogram to other weight units
Show all Kilogram conversions
Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 kg = 2.2046226218 lb) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.