Kilogram to Pound Conversion Calculator: Free Online Tool
Convert kilograms to pounds with our free online weight converter.
Kilogram to Pound Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Kilogram).
- The converted value in Pound will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Weight category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Kilogram to Pound
Converting Kilogram to Pound involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Kilogram = 2.20462 poundsExample Calculation:
Convert 5 kilograms: 5 × 2.20462 = 11.0231 pounds
Common Conversion Scenarios:
- Body Weight Example: A person weighing 75 kg is approximately 165.3467 lb.
- Cooking Ingredient Conversion: A recipe calling for 1 kg of flour needs about 2.2046 lb.
- Package Shipping Weight: A package weighing 5 kg is equivalent to 11.0231 lb for shipping.
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Kilogram and a Pound?
The kilogram is the base unit of mass in the International System of Units (SI). It is defined based on the fixed numerical value of the Planck constant.
The pound (avoirdupois) is a unit of mass used in the imperial and US customary systems. It is defined as exactly 0.45359237 kilograms.
Note: The Kilogram is part of the metric (SI) system, primarily used globally in science and trade. The Pound belongs to the imperial/US customary system.
History of the Kilogram and Pound
Originally defined as the mass of one liter of water. Later, it was represented by the International Prototype of the Kilogram (IPK), a platinum-iridium cylinder. In 2019, the definition was changed to be based on fundamental physical constants.
Originates from the Roman 'libra'. The avoirdupois pound became the standard for commerce in England and was later adopted in the US.
Common Uses for kilograms and pounds
Explore the typical applications for both Kilogram (metric) and Pound (imperial/US) to understand their common contexts.
Common Uses for kilograms
- Global Standard: The primary unit for mass in science (physics, chemistry), engineering calculations, and international trade (e.g., commodity pricing).
- Body Weight: Widely used worldwide (outside the US/UK primarily) for measuring human body weight for health and fitness tracking.
- Food & Groceries: Used for selling and labeling larger quantities of food items like rice, flour, sugar, and some produce in metric countries.
- Shipping & Logistics: Standard unit for calculating weights of packages and freight internationally.
- Everyday Objects: Measuring the mass of common items like furniture, electronics, or luggage.
Common Uses for pounds
- Body Weight: The primary unit for measuring human body weight in the United States, United Kingdom, and Canada, commonly seen on personal scales.
- Food & Groceries (US/UK): Standard unit for selling and pricing produce (e.g., apples, potatoes by the pound), meat, cheese, and deli items. Recipe ingredients are often measured in pounds or ounces.
- General Weight: Used for everyday weight measurements in non-scientific contexts in the US/UK, such as package weight for domestic shipping or luggage weight.
- Specific Applications: Sometimes used in technical fields like measuring tire pressure (pounds per square inch, PSI - though PSI is pressure, not mass) or fishing line strength (lb-test).
Frequently Asked Questions
Questions About Kilogram (kg)
What is the base unit of mass in the SI system?
The kilogram (kg) is the base unit of mass in the International System of Units (SI).
Is the kilogram used worldwide?
Yes, it's the global standard for science, engineering, and international trade, and widely used for everyday measurements in most countries.
How was the kilogram originally defined?
It was initially defined as the mass of one liter of water, later represented by a physical artifact (the IPK), and is now based on the Planck constant.
About Pound (lb)
What measurement system uses pounds?
The pound (lb) is a key unit in the imperial and US customary measurement systems.
Where is the pound commonly used?
Primarily in the United States, United Kingdom, and Canada for everyday measurements like body weight and groceries.
How many ounces are in a pound?
There are exactly 16 avoirdupois ounces (oz) in 1 avoirdupois pound (lb).
Conversion Table: Kilogram to Pound
| Kilogram (kg) | Pound (lb) |
|---|---|
| 1 | 2.205 |
| 5 | 11.023 |
| 10 | 22.046 |
| 25 | 55.116 |
| 50 | 110.231 |
| 100 | 220.462 |
| 500 | 1,102.311 |
| 1,000 | 2,204.623 |
All Weight Conversions
Other Units from Weight
- Gram (g)
- Milligram (mg)
- Ounce (oz)
- Stone (st)
- Ton (metric) (t)
- Ton (US) (ton)
- Ton (UK) (long ton)
- Microgram (µg)
- Carat (ct)
- Slug (sl)
- Troy Ounce (oz t)
- Pennyweight (dwt)
- Grain (gr)
- Dram (dr)
- Quintal (q)
- Atomic Mass Unit (u)
- Pavan (India) (pavan)
- Kati (India) (kati)
- Masha (India) (masha)
- Dina (India) (dina)
- Pras (India) (pras)
- Lota (India) (lota)