Weight Converter
A cubic meter of feathers weighs the same as a cubic meter of steel. True story.
About This Calculator
How It Works
All weight conversions use kilograms as the base unit. Enter any value in milligrams, grams, kilograms, pounds, ounces, metric tons, or US tons, and the calculator simultaneously outputs the equivalent in every other unit. The math is straightforward multiplication by a fixed conversion factor — the challenge is just knowing what those factors are, which is what this is for.
The Formula
Base unit: 1 kilogram. 1 pound = 0.453592kg. 1 ounce = 0.0283495kg. 1 metric ton = 1000kg. 1 US ton = 907.185kg.
When to Use This
Weight conversion comes up in cooking (grams vs. ounces for recipes), shipping (calculating package weight in the required unit), fitness (pounds vs. kilograms on gym equipment), and science or engineering contexts where metric precision matters. It's also handy when comparing products or nutritional information from different countries that use different unit systems.
Example
160 pounds = 72.57 kg = 72,574 grams = 72,574,000 mg. It's the same mass. It just sounds more impressive in milligrams.
Did You Know?
A cubic meter of feathers and a cubic meter of steel weigh exactly the same — both are about 7,750 kg or 8.5 tons. This is because the question specifies volume, not weight. The feathers just need much, much more space to get there.