Convert Mass from Pound to Metric Tonne (lb to mt)
Multiple conversions

Pound to Metric Tonne Conversion Formula

To convert from Pound (lb) to Metric Tonne (mt), use the following formula:

With $453.59237$ is the ratio between the base units Gram (g) and Pound (lb).

Example

Let's convert 5 Pound (lb) to Metric Tonne (mt).

Using the formula:

Therefore, 5 Pound (lb) is equal to $0.00226796185$ Metric Tonne (mt).

What is a Pound (lb)?

The pound (lb) is a basic unit of mass and weight in the imperial system. It's widely used in the United States and elsewhere to measure things like groceries, body weight, and shipping.

Why is a Pound Abbreviated as "lb"?

Have you ever wondered why we write "lb" for pound? The abbreviation has ancient Roman roots.

It originates from the Roman unit of mass, the libra, which is Latin for "scales" or "balance."

The whole Roman phrase was libra pondo, meaning "a pound by weight." While English speakers adopted the pondo part, which became the word "pound," the abbreviation "lb" was retained from the phrase "libra."

How Many Ounces in a Pound? Avoirdupois vs. Troy

Not all pounds are created equal. The two most common types are the avoirdupois pound and the troy pound.

• Avoirdupois Pound: This is the standard, everyday pound used for general purposes. It is equal to 16 ounces. When you weigh yourself or buy produce, you are using the avoirdupois pound.
• Troy Pound: This unit is used exclusively for weighing precious metals, such as gold and silver. A troy pound is lighter, containing only 12 troy ounces.

The Official Definition: Pound to Kilogram (kg) Conversion

To ensure global consistency, the pound is officially defined in relation to the kilogram (kg), the base unit of mass in the metric system.

Since 1959, one pound has been internationally defined as exactly 0.45359237 kilograms.

This agreement ensures that a pound in the US is the same as a pound in the UK. For everyday calculations, you can remember that 1 pound is about 0.45 kg.

What is a Metric Tonne (mt)?

A metric tonne, often called simply a tonne (symbol: t), is a standard unit of mass in the metric system.

It's commonly used around the world to measure heavy objects, especially in trade and industry.

So, how heavy is it?

• A metric tonne is exactly 1,000 kilograms.
• This is equal to about 2,204.6 pounds.

It's also equivalent to one million grams (10⁶ g), which is why it's sometimes called a megagram (Mg).

The Simple Link Between a Tonne and Water

A great way to visualize a metric tonne is to think of a cube of water.

Imagine a cube that's one meter on each side—one meter tall, one meter wide, and one meter long. If you were to fill that cube with pure water, its mass would be exactly one metric tonne (1,000 kilograms).

This simple and direct relationship between volume (1 m³) and mass (1 tonne) is a perfect example of what makes the metric system so logical and practical.

Tonne vs. Ton: What's the Difference?

The term "ton" can be confusing, as it refers to different units of weight depending on the location.

Understanding this distinction is crucial, especially in the context of international shipping.

• Metric Tonne (t): The standard international unit. It's 1,000 kg or 2,204.6 lbs.
• Short Ton (US Ton): Commonly used in the United States, equal to exactly 2,000 pounds (about 907.2 kilograms).
• Long Ton (UK Ton): A traditional British unit of weight, equal to 2,240 lbs (about 1,016 kg).

Key takeaway: A US short ton is roughly 10% lighter than a metric tonne, whereas a UK long ton is slightly heavier. Always specify the unit to prevent costly errors!

What is the imperial system?

What is the metric system?

Pound to Metric Tonne Conversion Table

Here are some quick reference conversions from Pound (lb) to Metric Tonne (mt):