How many Kilograms are in 1 Pound?

There are exactly 0.45359237 Kilograms (kg) in 1 Pound (lb). This means that to find the equivalent in Kilograms, you multiply your Pound value by 0.45359237. This conversion factor is used worldwide in science, engineering, and everyday measurements.

What is 10 Pounds in Kilograms?

10 Pounds (lb) is exactly 4.5359237 Kilograms (kg). This is calculated by applying the standard conversion factor: 1 lb = 0.45359237 kg.

What is 100 Pounds in Kilograms?

100 Pounds (lb) is exactly 45.359237 Kilograms (kg). This is calculated by applying the standard conversion factor: 1 lb = 0.45359237 kg.

How do I convert Kilograms back to Pounds?

To convert Kilograms to Pounds, divide the value in Kilograms by 0.45359237. For example, 1 kg = 2.204622622 lb. You can also use the swap button on the converter above to instantly switch the conversion direction.

Why would I need to convert Pounds to Kilograms?

Converting Pounds to Kilograms is commonly needed in international trade, travel, academic studies, engineering projects, and everyday tasks where different measurement systems are used. Many countries use different standard units, making this conversion essential for accurate communication and calculations.

Is Pound bigger than Kilogram?

To compare, look at the conversion factor: 1 lb = 0.45359237 kg. If the result is greater than 1, then one Pound is larger than one Kilogram. Conversely, 1 kg = 2.204622622 lb. Use this relationship to quickly understand the relative size of these two units.

What is the quickest way to convert Pounds to Kilograms?

The quickest way is to multiply your Pounds value by 0.45359237. For a mental math shortcut, remember that 1 lb is approximately 0.45359237 kg. Round this factor to a convenient number for rough estimates, or use the UnitShift converter above for exact results instantly.

How accurate is this Pound to Kilogram converter?

This converter uses full floating-point precision (64-bit double precision) for all calculations, ensuring results accurate to approximately 15 significant digits. The conversion factors between Pound and Kilogram are based on internationally recognized standards. For everyday use, scientific work, and engineering applications, this level of precision exceeds typical requirements.

Pound → Kilogram

From

0.45359237kg

Conversion Table

Conversion table from Pound to Kilogram
Pound (lb)	Kilogram (kg)
0.001 lb	0.00045359237 kg
0.01 lb	0.0045359237 kg
0.1 lb	0.045359237 kg
1 lb	0.45359237 kg
2 lb	0.90718474 kg
3 lb	1.36077711 kg
4 lb	1.81436948 kg
5 lb	2.26796185 kg
10 lb	4.5359237 kg
15 lb	6.80388555 kg
20 lb	9.0718474 kg
25 lb	11.33980925 kg
50 lb	22.6796185 kg
100 lb	45.359237 kg
250 lb	113.3980925 kg
500 lb	226.796185 kg
1,000 lb	453.59237 kg
5,000 lb	2,267.96185 kg
10,000 lb	4,535.9237 kg

Formula

To convert Pounds to Kilograms, divide the value by 2.20462. For example, 5 lb equals 2.26796185 kg. You can also use UnitShift's free online converter above for instant, accurate results without manual calculation.

Pound → Kilogram: divide the value by 2.20462

1 lb = 0.45359237 kg. To convert Pounds to Kilograms, multiply the pound value by 0.45359237.

Quick Facts

1 lb

0.45359237 kg

1 kg

2.204622622 lb

10 lb

4.5359237 kg

100 lb

45.359237 kg

How to Convert Pounds to Kilograms

Converting pounds to kilograms is one of the most common weight & mass conversions. Whether you're working with international measurements, academic research, or everyday calculations, understanding the relationship between pounds and kilograms is essential. One pound (lb) equals exactly 0.45359237 kilograms (kg), and conversely, one kilogram equals 2.204622622 pounds.

This conversion is frequently used in gym and fitness weight plate conversions and international travel luggage weight limits. For quick reference: 10 pounds = 4.5359237 kilograms, and 100 pounds = 45.359237 kilograms. Our converter above handles any value instantly, including decimal and negative numbers.

The pound and kilogram are both units of weight & mass. The conversion factor between them is constant, making it straightforward to convert in either direction. Other common applications include body weight tracking across health apps and shipping packages internationally.

Use the conversion table below for pre-calculated values, or enter any custom number in the converter above. All calculations are performed with full floating-point precision to ensure accuracy for both everyday use and professional applications. Bookmark this page for quick access whenever you need to convert pounds to kilograms.