Pounds to Kilograms Converter Calculator

Powerful pounds to kilograms tool for exact conversions with adjustable precision live calculations clear steps and unit notes suitable for science engineering cooking logistics fitness and classrooms works on mobile and desktop supports copy share and history improves accuracy and saves time for professionals students and curious learners offline tips and keyboard friendly input

Convert lb to kg

Enter a number. Negative values are allowed for testing but not meaningful in most contexts.

Quick reference table

Pounds (lb) Kilograms (kg)
1 0.454
2 0.907
5 2.268
10 4.536
20 9.072
25 11.340
30 13.608
35 15.876
40 18.144
50 22.680
75 34.019
100 45.359
150 68.039
200 90.718

Generate custom range

How it works

The conversion uses the exact international avoirdupois relationship where 1 pound = 0.45359237 kilograms. Multiply pounds by 0.45359237 to get kilograms. Adjust decimal places or switch to scientific notation to change the format only; the underlying value remains the same.

Tip You can paste values that include spaces or thousands separators. The calculator sanitizes them automatically.

FAQs

The exact factor is 0.45359237 kg per pound. This definition is standardized internationally and does not vary by context.

No. Rounding only changes how many digits are displayed. The internal calculation uses full precision before formatting.

Scientific notation is useful for very large or very small values. Toggle the switch to display results in aEb format such as 1.23E+4.

Yes. Use the custom range builder to set start end and step. The tool generates a table with up to 1000 rows for quick export or copying.

Pound (lb) is a unit of mass used primarily in the United States and a few other countries. Kilogram (kg) is the SI base unit of mass used worldwide.

No. The calculator accepts plain numbers. If you paste values with separators or spaces they are removed automatically before computing.

Yes. After a conversion appears click Copy result. The value is copied to your clipboard using plain text so it can be pasted anywhere.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.