Which is the same as writing 1 L = 10 6 μL Question 4: Convert 0.250 L to microlitresįrom the table above we see that "micro" means 10 -6ĭivide both sides of the equation by 10 -6 Multiply both sides of the equation by 5: Question 3: Convert 5 millilitres to litres Multiply both sides of the equation by 2.5 Question 1: Convert 1 litre to decilitresįrom the table above we see that deci = 10 -1 = 0.1įrom the table above we see that milli = 10 -3ĭivide both sides of the equation by 10 -3 Play the game now! Worked Examples of Volume Conversions Using Metric Units The name, symbol, and conversion factors for some prefixes is given in the table below: Water stored in dams is often reported in units of gigalitres (GL), billions of litres.Ī liquid active ingredient in a medicine, however, might be given as a volume in microlitres (μL), millionths of a litre. Other prefixes before "litres" you might encounter are: Multiply both sides of the equation by 0.018 gives us:Īnd now we can use the graduated measuring cylinder to get a volume of 18 mL (or 0.018 L) of water for our experiment. Which is the same as writing 1 L = 1000 mL So if we multiply both sides of the equation by 1000 to clear the fraction we arrive at: Let's say you need to measure out 0.018 L of water using a measuring cylinder that is graduated in milliltres (mL). The reverse is also true, you might calculate a volume of solution needed in litres (L) but you will need to use glassware graduated in milliltres (mL) to measure out the volume in the lab. When you make up a solution in the laboratory you will probably measure the volume in milliltres (mL), but when you perform calculations you will probably need to convert those volumes in mL to volumes in litres (L). Small volumetric flasks might be 25 mL, 50 mL and 100 mL, larger flasks are 250 mL and 500 mL, but the biggest flask is probably 1 L. If you look around at the glassware in the laboratory designed to contain liquids and solutions you will find small pieces labelled in milliltres (mL) and large pieces labelled in litres (L).įor example you might see 10 mL, 50 mL, 100 mL, 250 mL and 500 mL beakers, and a big 1 L beaker. Which we can express in scientific notation as 375 × 10 -3 L = 3.75 × 10 -1 L So, if we want to convert the volume of our 375 mL bottle of juice to a volume in litresĪnd 375 × 1/ 1000 L = 375 × 0.001 L = 0.375 L If we divide 1 by 1000 we can convert the fraction ( 1/ 1000) to a decimal:Īnd we can express the decimal number in scientific notation: The prefix "milli" refers to a thousandth ( 1/ 1000) and is given the symbol m.ġ millilitre (1 mL) is therefore one thousandth of a litre (L). Litres (L) and millilitres (mL) are common units for measuring volume in many countries that have adopted the metric system such as Australia.įor example you can buy 1 litre (1 L) of milk or 2 litres (2 L) of milk to take home and put in the fridge.īut if you want a drink right now you will buy a smaller amount, for example a 375 millilitre (375 mL) bottle or a 250 millilitre (250 mL) popper of juice.Ĭlearly 1 millilitre (1 mL) is a much smaller volume than 1 litre (1 L). No ads = no money for us = no free stuff for you! Converting Metric and SI Units of Volume Non-metric units of volume can still be found in use around the world, for example, gallons of gas in the USA and a pint of beer in the UK.Ĭonversion factors for some US units are given below: 1 US liquid gallon = 231 cubic inches = 3.785411784 Lġ US fluid ounce = 1/ 128 US gallon = 0.0295735295625 L = 29.5735295625 mLġ US pint = 1/ 8 US gallon = 16 US fluid ounces = 473.1764729984 mLġ US quart = 1/ 4 US gallon = 32 US fluid ounces = 946.3529459968 mL.
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