Multiply both sides of the equation by 10Ĭonvert 2.5 pounds to a mass in kilograms Worked Examples of Conversion Between Non-Metric Units and Metric or SI Units of Mass You will need to know the following conversion factors: Take the test now! Converting Non-Metric Units of Mass to Metric or SI Units Therefore we multiply the mass in g by 10 -3 to get the mass in kg:Ģ5 µg = 2.5 × 10 -5 g = (2.5 × 10 -5) × 10 -3 kg Multiply both sides of the equation by 25 Solution: From the table above we see that micro = 10 -6 Multiply both sides of the equation by 250 Solution: From the table above we see that kilo = 10 3ĭivide both terms by 10 3 to find how many kilograms in 1 g 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). No ads = no money for us = no free stuff for you! Converting Metric and SI Units of Mass 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.The SI unit (1) of mass is the kilogram which is given the symbol kg.Mass is a direct measure of the amount of matter in an object. ![]() You need to become an AUS-e-TUTE Member! Mass Conversions Chemistry Tutorial Key Concepts Want chemistry games, drills, tests and more? It is very easy to use this calculator online.Mass Conversions Chemistry Tutorial More Free Tutorials Become a Member Members Log‐in Contact Us If you want to get your weight in grams again, you only need to click on the clear button to get your weight in grams. How to Use a kg to gram converter calculator?Ī useful Kilogram to grams calculator for free, this calculator online is very simple to use, you just enter the weight in kilograms and then click a button to get the answer in grams. ∴ 1 Kilograms (Kg) = 1000 Grams (g) Kilogram to gram Chart Kilograms (kg) conversion from Kilogram to grams, just multiply 1000 by Kilogram, then get result in grams Kilogram to gram formula Kilograms and grams are units of mass in the metric system.
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