ΣMyCalc
ΣMyCalc

Weight Converter

Convert between kilograms, pounds, ounces, stones, grams, and metric tons.

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Conversion Result

70 Kilograms (kg)

→

154.32370941

Pounds (lb)

⚖️ Weight Facts

1 kilogram = 2.205 pounds

1 pound = 453.6 grams

1 ounce = 28.35 grams

1 stone = 6.35 kilograms

💪 Use Cases

Cooking: Use grams for precision

Body weight: kg (metric) or st (UK)

Gems & jewelry: Use carats

Shipping: Often uses pounds or kg

How to Use the Weight Calculator

Enter a weight value, select the current unit, choose your target unit, and get instant conversion. Great for cooking, fitness, and shipping weights.

Formula

All weights convert through kilograms (base unit). value_in_kg = input × from_factor; result = value_in_kg ÷ to_factor.

History & Interesting Facts

💡 Did You Know?

A carat is used to measure precious gemstones and equals 200 milligrams. It comes from carob seeds, which were historically used as standard weights.

Origin & History

The kilogram is the SI base unit of mass. Historically, mass was measured with scales, but modern kilograms reference a platinum-iridium cylinder kept in Paris.

Fascinating Facts

  • 1

    1 pound = 453.592 grams (often rounded to 454g)

  • 2

    1 ounce = 28.3495 grams (often used in cooking)

  • 3

    1 stone = 14 pounds (primarily used in UK)

  • 4

    1 metric ton = 1,000 kilograms = 2,204.62 pounds

  • 5

    Precious metals and gemstones are weighed in carats or troy ounces

Frequently Asked Questions

What is the difference between ounces and grams?

1 ounce = 28.3495 grams. Ounces are imperial, while grams are metric. Grams are more precise for cooking and scientific work.

How much do I weigh in kilograms if I weigh 200 pounds?

200 pounds ÷ 2.20462 = approximately 90.7 kilograms.

What is a stone used for?

Stones are mainly used in the UK and Ireland for measuring body weight. 1 stone = 14 pounds = 6.35 kilograms.

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