Weight Converter
Convert weight between mg, g, kg, ounces, pounds and US tons.
Convert mass/weight between metric and imperial units.
How the Math Works
The Weight Converter uses a simple but powerful formula: result = value × (from in grams) ÷ (to in grams). This works by first converting both the starting unit and target unit into their equivalent weight in grams, then using those standardized values to calculate the conversion. For example, to convert 5 pounds to ounces, we multiply 5 by the gram equivalent of pounds (453.592) and divide by the gram equivalent of ounces (28.3495), giving us the accurate result of 80 ounces.
Practical Applications
To use this calculator practically, simply enter the weight value you want to convert, select the unit you're converting from, and choose the unit you want to convert to. The calculator instantly applies the conversion formula and displays your result. Whether you're converting 500 milligrams of medication to grams for dosing, or 2.5 tons of scrap metal to pounds for pricing, the calculator handles the mathematical work so you get precise results without manual calculations.
Day-to-Day Use
This weight converter simplifies everyday tasks that involve different measurement systems. When cooking, you can quickly convert recipe measurements between metric and imperial units. For fitness tracking, convert between kilograms and pounds to monitor progress. Shoppers can compare product weights listed in different units, while students can check their homework answers. Even when reading food labels or medication instructions that use different units, this tool provides instant, reliable conversions that help you make informed decisions.
Worked example
1 kg to pounds → 1000 ÷ 453.59237 = 2.2046 lb.
FAQ
How many grams in a pound?
453.59237 grams.