Everyday Calculator
Weight Converter
Convert between pounds, ounces, kilograms, and grams.
1 lb =
0.4536 kg
How it works
Enter a weight and pick the units to convert from and to. Conversions go through kilograms internally as a common reference unit, so any pair — US customary or metric — converts correctly.
Formula
Converted value = (Value × From-unit-to-kg factor) ÷ To-unit-to-kg factor
Example
1 pound converts to about 0.4536 kilograms.
Frequently asked questions
Is this the same as mass?
Colloquially yes — this converts the everyday sense of "weight" (pounds, kilograms) that scales measure, not the scientific distinction between mass and weight-as-a-force.
How precise are the conversions?
They use standard, exact conversion factors (1 lb = 0.45359237 kg exactly), so results are as precise as the decimal places shown.