How to Use the Pounds to Kilograms Converter
Enter a weight in pounds to convert it into kilograms for fitness, travel, shipping and everyday measurements.
Practical Example
150 lb equals approximately 68.0389 kg.
Factors That Affect the Result
The conversion factor is fixed. Scale calibration, source measurement accuracy and rounding affect the practical result.
Frequently Asked Questions
How many kilograms are in one pound?
One pound equals exactly 0.45359237 kg.
What is 200 lb in kilograms?
200 lb equals approximately 90.7185 kg.
Can I convert decimal pounds?
Yes. Decimal values are supported.
Converting Pounds to Kilograms
One international avoirdupois pound equals exactly 0.45359237 kilograms. Multiply pounds by this factor to convert mass to kilograms. For example, 150 lb is approximately 68.04 kg. Pounds and kilograms are units of mass in ordinary conversion use, although everyday language often calls both “weight.” This conversion is useful for travel baggage, fitness records, product specifications and international forms. Make sure the source value uses ordinary avoirdupois pounds rather than another historical or specialized pound definition. When a form specifies a whole-number kilogram limit, do not round in a direction that could incorrectly place a value below the limit. For scientific or regulated measurements, retain the precision required by the underlying measurement and applicable standard.
Conversion Formula and Context
One avoirdupois pound equals exactly 0.45359237 kilograms. This converts mass; pound-force is a different unit and should not be substituted in force calculations.