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Sources and Accuracy
Weight and mass conversions use kilogram as the reference unit. Common factors include 1 pound = 0.45359237 kilogram and 1 ounce = 0.028349523125 kilogram.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
microgram [µg]
Definition
The microgram (µg) is a weight unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use microgram when comparing weight values, checking specifications, converting between systems, or preparing quick estimates.
gram [g]
Definition
The gram is a metric mass unit equal to one thousandth of a kilogram.
History
Grams are part of the metric system and became common for small everyday weights.
Current use
Grams are used for food, nutrition, recipes, lab samples, postage, jewelry, and product labels.