Solution: From the table above we see that milli = 10 -3 Solution: From the table: 1 kg = 10 3 g = 1,000 g
Solution: From the table above we see that kilo = 10 3 = 1,000 Play the game now! Worked Examples of Mass Conversions Using Metric and SI Units The factor, prefix, and symbol for each of these is given in the table below: We have converted the mass of aspirin from units of milligrams (mg) to units of grams (g) and to units of kilograms (kg).Īlthough kilograms (kg) is the SI unit of mass, chemists routinely use both larger and smaller units for mass. The prefix "milli" is used to represent 1/ 1000 or 10 -3 so 1 milligram is a thousandth of a gram: The mass of the active ingredient in each tablet is usually given in units of milligrams (mg), for example 200 mg. If you look in your medicine cabinet you will probably find tablets containing either aspirin, or paracetamol (acetaminophen), or ibuprofen. We have converted the mass of sultanas from units of grams (g) to units of kilograms (kg). That is, 100 g of sultanas is the same as 1 × 10 -1 kg or 0.1 kg of sultanas. We have converted the mass of bananas in kilograms (kg) to a mass of bananas in grams (g). So ½ kg of bananas is the same as 500 g of bananas, or 5 × 10 2 g of bananas. Using scientific notation (exponential notation) we would write: If you buy ½ kg of bananas, then in grams you would have: The unit of mass known as the gram is given the symbol g while the prefix kilo is given the symbol k so a kilogram is represented by the symbol kg. There are 1,000 grams in 1 kilogram, kilo is a prefix used to indicate 1,000. When you buy medicines, the mass of the active ingredient is usually given in units of milligrams (mg), for example, 200 milligrams (200 mg) of aspirin per tablet. If you look on the nutrition panel of a box of sultanas, for example, it will tell you the energy, carbohydrate, protein, and fat content per 100 grams of sultanas.
Kilograms (kg), grams (g) and milligrams (mg) are all common units of measuring mass in many countries that have adopted the metric system such as Australia.įor example, if you buy bananas the price is displayed per kilogram, say $3 per kilogram (which in Australia we would say is $3 per kilo of bananas).
#Kg to grams free#
No ads = no money for us = no free stuff for you! Converting Metric and SI Units of Mass
#Kg to grams how to#
You may need to know how to convert these non-metric units into metric or SI units. Some countries routinely use non-metric units such as ounces (oz) and pounds (lb) to measure mass.Chemists in a laboratory usually deal with much smaller masses than kilograms, often grams (g) or milligrams (mg), so we need to be able to convert from one of these metric units of mass to another.
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