Conversion table for weights: ounces, pounds, tons and kilograms

Here you will find a complete conversion table for weights. The table shows how to easily convert between common weight units such as ounces (oz), pounds (lb), short ton (US), long ton (GB), kilogram (kg) and ton (t).

Whether you work in trade, logistics, international measurements or just want a quick reference when you come across foreign weight units, the table provides a clear overview of how measurements relate to each other.

Conversion for weight units

How much is a pound in kilograms?

1 pound (lb) is equal to 0.4536 kilogram (kg).

Example calculation:
If you have 10 pounds:
10 × 0.4536 = 4.536 kg
So 10 lb = 4.54 kg.

How much is an ounce in grams?

1 ounce (oz) is equal to 28.35 grams (g).

Example calculation:
If you have 8 ounces:
8 × 28,35 = 226,8 g
So 8 oz = 227 g.

Common Weight Conversions

Grams to Kilograms

One kilogram is equal to 1,000 grams. To convert grams to kilograms, divide the number of grams by 1,000.

Formula:

Gram ÷ 1,000 = kilogram

Example:

100 g = 0.1 kg
500 g = 0.5 kg
1,000 g = 1 kg
2,500 g = 2.5 kg

A product weighing 750 grams is equivalent to:

750 ÷ 1,000 = 0.75 kg

Kilograms to grams

To convert kilograms to grams, multiply the number of kilograms by 1,000.

Formula:

Kilograms × 1,000 = grams

Example:

0.5 kg = 500 g
1 kg = 1,000 g
2.5 kg = 2,500 g
10 kg = 10,000 g

Kilograms to metric tons

One metric ton is equal to 1,000 kilograms. To convert kilograms to metric tons, divide the number of kilograms by 1,000.

Formula:

Kilograms ÷ 1,000 = metric tons

Example:

100 kg = 0.1 metric ton
500 kg = 0.5 metric tons
1,000 kg = 1 metric ton
2,500 kg = 2.5 metric tons

A machine component weighing 1,750 kg is equivalent to:

1,750 ÷ 1,000 = 1.75 metric tons

Tons to kilograms

To convert metric tons to kilograms, multiply the number of metric tons by 1,000.

Formula:

Tonne × 1,000 = kilogram

Example:

0.5 metric tons = 500 kg
1 metric ton = 1,000 kg
2 metric tons = 2,000 kg
10 metric tons = 10,000 kg

Ounces to Grams

An ounce, abbreviated as oz, is a unit of weight used primarily in the United States and the United Kingdom. One ounce is equal to approximately 28.35 grams.

Formula:

Ounce × 28.35 = grams

Example:

1 oz ≈ 28.35 g
2 oz ≈ 56.70 g
5 oz ≈ 141.75 g
10 oz ≈ 283.50 g

A component weighing 8 oz is equivalent to:

8 × 28.35 ≈ 226.8 g

Grams to Ounces

To convert grams to ounces, divide the number of grams by approximately 28.35.

Formula:

Gram ÷ 28.35 = ounce

Example:

100 g ≈ 3.53 oz
250 g ≈ 8.82 oz
500 g ≈ 17.64 oz
1,000 g ≈ 35.27 oz

Pounds to kilograms

The pound, abbreviated as lb, is often used in American and British product data sheets. One pound is equivalent to approximately 0.4536 kilograms.

Formula:

Pound × 0.4536 = kilogram

Example:

1 lb ≈ 0.45 kg
5 lb ≈ 2.27 kg
10 lb ≈ 4.54 kg
100 lb ≈ 45.36 kg

A product weighing 50 lb is equivalent to:

50 × 0.4536 ≈ 22.68 kg

Kilograms to pounds

To convert kilograms to pounds, multiply the number of kilograms by approximately 2.2046.

Formula:

Kilograms × 2.2046 = pounds

Example:

1 kg ≈ 2.20 lb
5 kg ≈ 11.02 lb
10 kg ≈ 22.05 lb
100 kg ≈ 220.46 lb

A pump weighing 35 kg is equivalent to:

35 × 2.2046 ≈ 77.16 lb

Stone to kilogram

The stone is primarily used in the United Kingdom. One stone is equal to 14 pounds, which is approximately 6.35 kilograms.

Formula:

Stone × 6.3503 = kilogram

Example:

1 unit ≈ 6.35 kg
5 pieces ≈ 31.75 kg
10 pieces ≈ 63.50 kg
20 pieces ≈ 127.01 kg

American tons to kilograms

An American ton, also known as a short ton, is equal to 2,000 pounds or approximately 907.18 kilograms.

Formula:

American tons × 907.18 = kilograms

Example:

1 short ton ≈ 907.18 kg
2 short tons ≈ 1,814.37 kg
5 short tons ≈ 4,535.92 kg

British tons to kilograms

A British ton, also known as a long ton, is equal to 2,240 pounds or approximately 1,016.05 kilograms.

Formula:

British tons × 1,016.05 = kilograms

Example:

1 long ton ≈ 1,016.05 kg
2 long tons ≈ 2,032.09 kg
5 long tons ≈ 5,080.23 kg

The Difference Between the Metric, U.S., and British Ton

There are three common units called "ton":

• 1 metric ton = 1,000 kg
• 1 U.S. ton (short ton) = approximately 907.18 kg
• 1 British ton, long ton = approximately 1,016.05 kg

When converting from English-language product data sheets, it is therefore important to verify which type of metric ton is being referred to.

Do you need help choosing the right component?

The weight of a pump, hose, valve, or other process component can affect the installation, transportation, and sizing of the surrounding structure.

If you need help interpreting technical specifications, converting weight units, or selecting a component that suits your application, we'd be happy to help you find the right solution.