Mass Calculator
From Unit
To Unit
Converted Value2.204624
This mass calculator converts a quantity of mass from one unit to another, covering kilograms, grams, milligrams, pounds, ounces, and metric tons. It works by expressing the input in kilograms and then scaling to the target unit, so any pair of supported units can be converted directly. Use it for cooking, shipping, lab work, or any task where you need to switch between metric and imperial mass units.
Formula
result = value × (factor_from ÷ factor_to)
- value
- The amount entered in the source unit
- factor_from
- Kilograms per one source unit (e.g. lb = 0.453592, oz = 0.0283495, ton = 907.185)
- factor_to
- Kilograms per one target unit
How it works
- Enter the numeric amount you want to convert.
- Pick the source unit (kg, g, mg, lb, oz, or ton) and the target unit from the chip selectors.
- The value is multiplied by its source-to-kilogram factor and then divided by the target unit's factor to give the converted result.
Worked example
Convert 5 pounds to kilograms.
- One pound equals 0.453592 kg.
- Multiply: 5 × 0.453592 = 2.26796.
- The target unit is already kilograms, so no further division is needed.
5 lb = 2.26796 kg.
Frequently asked questions
- Which mass units does this calculator support?
- It converts between kilograms (kg), grams (g), milligrams (mg), pounds (lb), ounces (oz), and metric tons. A metric ton here equals 907.185 kg, matching the US short ton convention used by the engine.
- What is the difference between mass and weight?
- Mass is the amount of matter in an object and stays constant everywhere, while weight is the gravitational force on that mass and changes with gravity. This tool converts mass units; on Earth the two are commonly used interchangeably.
- How many grams are in a pound?
- One pound is approximately 453.592 grams, since the calculator uses 0.453592 kg per pound. Sixteen ounces also make one pound, with each ounce equal to about 28.3495 grams.
- Can I convert between any two of the supported units?
- Yes. The calculator routes every conversion through kilograms, so you can convert directly between any pair, such as ounces to grams or tons to pounds, without an intermediate step.