Numarly

Weight Converter (All-in-One)

Enter a value and instantly convert between kg, grams, tons, pounds, ounces and more.

Converted Values

Milligram (mg): 1000000.00

Gram (g): 1000.00

Kilogram (kg): 1.00

Ton (t): 0.00

Pounds (lb): 2.20

Ounce (oz): 35.27

Formula

All conversions are calculated using kilogram (kg) as the base unit.

Example: 1 kg = 2.20462 pounds

What is it?

This weight converter converts between kilograms, grams, milligrams, tons, pounds, and ounces simultaneously, using kilograms as the common base unit. It's useful for daily use, fitness tracking, cooking, and engineering.

Formula

  • 1 Kilogram = 1000 grams
  • 1 Kilogram = 2.20462 pounds
  • 1 Pound = 0.453592 kg
  • 1 Ton = 1000 kg

Formula Explanation

Metric weight units (mg, g, kg, ton) scale by powers of 10 from the kilogram, while imperial units (pounds, ounces) use fixed historical ratios. Converting through kilograms as a common base keeps every pairing — like grams to ounces — mathematically consistent.

Example Calculation

A package weighing 5 kg converts to 5 × 2.20462 ≈ 11.02 pounds, or 5000 grams.

How to Use

  1. Enter a value.
  2. Select the unit you're converting from.
  3. View the converted result across all supported weight units instantly.

Benefits

  • Converts across metric and imperial weight units simultaneously.
  • Avoids manual conversion errors for shipping, cooking, and fitness use cases.
  • Useful for comparing product weights listed in different unit systems.

Use Cases

  • Tracking body weight in kg or lb for fitness goals.
  • Converting shipping package weights between kg and pounds.
  • Recipe conversions between grams and ounces.

What Your Result Means

Each figure represents the same physical mass, expressed on a different scale — grams and kilograms in most of the world, pounds and ounces in the US and UK for everyday use.

Tips

  • Use grams for precise cooking measurements, kilograms for body weight or larger quantities.
  • Remember 1 kg ≈ 2.2 lb as a quick mental conversion.
  • Check whether a shipping weight limit is quoted in kg or lb before packing.

Common Mistakes

  • Confusing a metric ton (1000 kg) with a US short ton (about 907 kg) or UK long ton.
  • Mixing up ounces (weight) with fluid ounces (volume), which measure different things.
  • Rounding pound conversions too early, compounding error in shipping or recipe calculations.

FAQs

How do I convert kg to pounds?

Multiply the number of kilograms by 2.20462 to get the equivalent in pounds.

What is 1 pound in kg?

1 pound equals approximately 0.453592 kilograms.

Why use a weight converter?

It provides fast, accurate conversions for cooking, fitness, shipping, and engineering, without manual calculation errors.

Is a metric ton the same as a US ton?

No — a metric ton is 1,000 kg, while a US short ton is about 907 kg and a UK long ton is about 1,016 kg. This converter uses the metric ton.

How many grams are in an ounce?

1 ounce is approximately 28.35 grams.

Why do some countries use kg and others use lb for body weight?

It comes down to which measurement system a country has historically adopted — most of the world uses kilograms, while the US commonly uses pounds for body weight.

All conversions are exact based on standard unit definitions, using the metric ton.

Last updated: July 25, 2026