Weight or Mass Converter

Convert Between Weight and Mass Units

Input Fields

Weight or Mass ValueEnter the mass or weight value you want to convert

From Unit

Gram (g)Kilogram (kg)Milligram (mg)Pound (lb)Ounce (oz)Ton (metric)Ton (US)Ton (UK)GrainTroy OunceTroy PoundDramApothecaries OunceApothecaries Pound

To Unit

Gram (g)Kilogram (kg)Milligram (mg)Pound (lb)Ounce (oz)Ton (metric)Ton (US)Ton (UK)GrainTroy OunceTroy PoundDramApothecaries OunceApothecaries Pound

CalculateReset

Calculate automaticallyIf enabled, the result will update automatically when you change any value.

Your Results

Converted Value

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Weight and Mass Unit Conversion Formula

$$\text{Target Value} = \text{Source Value} \times \text{Conversion Factor}$$

Explanation: To convert weight or mass from one unit to another, multiply the source value by the corresponding conversion factor between units. The calculator handles all conversions automatically between grams, kilograms, pounds, ounces, stones, carats, and even Troy and Apothecaries systems.

This Weight or Mass Converter covers a wide range of units from various systems, including metric (mg, g, kg), imperial (oz, lb, stone), and specialized weight systems used in medicine, jewelry, and chemistry. Easily switch between units for accurate scientific, commercial, or historical calculations. Suitable for students, professionals, and enthusiasts needing versatile weight conversions.