conversion / weight

kg to lbs Calculator - Convert Weight Between Measuring Systems

"Life is like a balance scale, you can't have too many kilograms on one side and too many pounds on the other." 😉

Are you in a situation where you needed to convert kilograms to pounds or vice versa? Maybe you were trying to buy a piece of luggage that had weight limits listed in kilograms, or you needed to calculate your weight in pounds for a fitness challenge. Whatever the case may be, welcome to our kg to lbs calculator! 🙌

But why do we have different measuring systems in the first place? And how do they work?

Metric vs. Imperial: The Battle of the Measuring Systems!

Whether you're traveling to a foreign country, working in a scientific field, or just trying to figure out how much weight you can lift at the gym, a basic understanding of the two metric systems is a must. Below is a table with the most relevant information regarding kilograms and pounds.

Metric System Imperial System
Basic Unit of Mass Kilogram (kg) Pound (lb)
Conversion Factor 1 kg = 2.20462 lbs 1 lb = 0.453592 kg
Common Uses Used worldwide, especially in science and medicine Used primarily in the United States and United Kingdom
Precision Generally more precise due to use of decimals and smaller units (e.g. grams) Generally less precise due to larger units and fewer decimal places
Easy Mental Math 1 kg ≈ 2 lbs (useful for quick estimates) 1 lb ≈ 0.5 kg (useful for quick estimates)
Abbreviation kg lb

Let's recap!

Kilograms to Pounds Formula 

Pounds = Kilograms x 2.20462

And here is an example to help you not forget it 🥐🐘:

If you've just returned from a trip to Paris and want to know how much weight you gained from all the croissants and baguettes, simply take your weight in kilograms (let's say 75 kg) and multiply it by the conversion factor of 2.20462. The result is 165.3465 pounds, which is about as heavy as a baby elephant!

From Ancient Rome to Modern Measurement: The Origins of the 'lb' Abbreviation for Pound

The pound, as a unit of weight, has a long history dating back to ancient civilizations. It was used in various forms by the Greeks, Romans, and other cultures. The English pound, which eventually became the basis for the pound in the imperial system, was originally defined as the weight of 120 silver pennies. The abbreviation for pound -- lb -- is derived from the Latin word 'libra,' which was used in ancient Rome as a unit of weight. The letters L and B were used as a shorthand for libra, with L representing the scales and B representing the balance beam.

How to Use the Calculator to Convert From Kg to Pounds

Our kg to lbs calculator is very intuitive. Here's how it works:

Step 1: Choose the Units

The default input unit for our calculator is kilograms (kg), but you can also choose to input weight in grams (g), milligrams (mg), or metric tons (t) using the drop-down menu next to the input box.

Likewise, the default output unit for our calculator is pounds (lbs), but you can also choose to display weight in ounces (oz) or stones (st) using the drop-down menu next to the output box.

Step 2: Input the Weight

Simply enter the weight you want to convert into the input box. The calculator will automatically convert the weight into the selected output unit.

Step 3: View the Result

The result will be displayed instantly!

Step 4: Reverse the Conversion

If you need to convert pounds to kilograms, simply start by entering the weight in pounds, and you'll get the kilograms instantly. Alternatively, you can select lbs from the drop-down menu of the first field and kg from the drop-down menu of the output field.

Kg to Lbs FAQs

  1. What's the difference between the metric and imperial systems?
    The metric system is based on multiples of 10, making it easy to convert between units. The imperial system is a mishmash of different units that can be confusing and difficult to convert. As we previously said, the U.S. is one of only three countries in the world that still uses the imperial system. The other two are Liberia and Myanmar.
  2. Why do we use kilograms and pounds to measure weight?
    Kilograms are the standard unit of mass in the metric system, while pounds are the standard unit of force in the imperial system. However, pounds are often used to measure weight as well, even though weight is actually a force and should be measured in newtons. But who wants to use newtons when we can use pounds and kilograms instead?
  3. What's the conversion factor between kilograms and pounds?
    The conversion factor is 2.20462 pounds per kilogram. But did you know that the kilogram used to be defined as the mass of a particular cylinder made of platinum and iridium? In 2019, the definition of the kilogram was changed to be based on a fundamental constant of nature, the Planck constant.
  4. Can I use this calculator to convert weight for cooking?
    Absolutely! If you're following a recipe that uses metric units and you only have imperial measuring cups, our calculator can help you convert the weight of ingredients. Or if you're following a recipe that uses pounds and you only have a scale that measures in kilograms, our calculator has got you covered.
  5. What's the weirdest unit of weight you've ever heard of?
    That's a tough one, but we think the "slug" might take the cake. A slug is a unit of mass used in the imperial system that's defined as the mass that's accelerated by 1 foot per second squared when a force of 1 pound is applied to it. That's right, a slug is a unit of mass that's defined in terms of force and acceleration. Now that's weird!


We hope this tool has made your life a little easier by simplifying weight conversions.. Remember, understanding different measuring systems can be useful and fun, and we encourage you to keep exploring the fascinating history and quirks behind the metric and imperial systems. 

If you have any feedback or suggestions for our calculator, please don't hesitate to contact us. Thanks for using our kg to lbs converter!