Become familiar with metric measurements. Develop a basic understanding of metric units by understanding measurements such as how long a meter is, how cold 20 degrees Celsius is and how heavy 1 kilogram is.
Understand the abbreviations of metric measurements such as mm, kg, ml, which stand for millimeter, kilogram and milliliter, respectively.
Obtain the measurement of the object, temperature or speed you want to convert to or from the metric system. Use the appropriate measuring device to obtain the measurement if you don't already know it. Use a thermometer to measure temperature, an odometer to measure speed and a tape measure to measure your height.
Decide on the appropriate unit to convert your measurement to, whether from the metric system into another system such as the imperial system or vice versa. Convert miles into kilometers, pounds into kilograms, degrees Fahrenheit into degrees Celsius and gallons into liters.
Use the right equation to convert your measurements. Use a conversion chart or keep a list of equations to use. Some equations you might use include: kilometers x 0.6214 = miles, (1.8 x Celsius) + 32 = Fahrenheit and miles per hour * 1.609344 = kilometers per hour.