Weight (Mass) Converter - kg, Gram, Ounce, Pound
Convert weight and mass units between kilogram, gram, milligram, ounce, pound, ton, stone, and more. Fast and accurate weight unit conversion for cooking, shipping, science, and everyday use. Supports both metric and imperial measurement systems with instant results.
Weight Conversion Factors
1 kg = 1000 g = 2.205 lb = 35.274 ozVariables:
- 1 kgKilogram (SI unit)Kilogram (SI unit)(e.g.: = 1000 gram)
- 1 gGramGram(e.g.: = 1000 mg = 0.001 kg)
- 1 lbPoundPound(e.g.: = 453.592 g ≈ 0.454 kg)
- 1 ozOunce (avoirdupois)Ounce (avoirdupois)(e.g.: = 28.35 g)
- 1 tonMetric tonMetric ton(e.g.: = 1000 kg)
- 1 ons (ID)Indonesian ounce (hectogram)Indonesian ounce (hectogram)(e.g.: = 100 g)
How to Use the Weight Converter
- 1
Enter Value
Input the weight value to convert.
- 2
Select Source Unit
Choose the unit: kg, g, mg, lb, oz, ton, etc.
- 3
View Results
All common unit conversions are displayed.
Examples
Kilograms to Pounds
Problem:
Convert 70 kg to pounds (lb)
Solution:
- 1.1 kg = 2.20462 lb
- 2.70 kg = 70 × 2.20462
Result:154.32 lb
Body weight of 70 kg equals about 154.3 pounds.
Grams to Hectograms
Problem:
How many hectograms in 250 grams?
Solution:
- 1.1 hectogram = 100 grams
- 2.250 g = 250 ÷ 100
Result:2.5 hectograms
In some markets, 1 hectogram = 100 grams.
Ounces to Grams
Problem:
Convert 8 oz (avoirdupois) to grams
Solution:
- 1.1 oz = 28.3495 g
- 2.8 oz = 8 × 28.3495
Result:226.8 g
For US recipes, 8 oz ≈ 227 grams.
Frequently Asked Questions
What is the difference between weight and mass?
Mass is the amount of matter (measured in kg). Weight is the gravitational force on mass (measured in newtons). On Earth the terms are often used interchangeably, but they differ physically.
What is the difference between a hectogram and an ounce?
Some countries use 'hectogram' or local trade units equal to 100 g. The avoirdupois ounce (oz) = 28.35 g. 100 g ≈ 3.5 oz.
How much is 1 quintal and 1 ton?
1 metric quintal = 100 kg. 1 metric ton = 1,000 kg = 10 quintals. US short ton = 907 kg; UK long ton = 1,016 kg.
How do I convert for gold and jewelry?
Precious metals use troy ounces: 1 troy oz = 31.1 g (heavier than avoirdupois oz). World gold prices use troy ounces.