Metric Conversion Table
Standard Units to Metric Units Conversion Table
Below is a conversion table that converts standard units into metric units.
(Online measurement conversions can be performed at MeasurementConversion.org)
| Measurement Unit | Symbol | Multiplication Factor | Measurement Unit | Symbol | |
| Length | Inches | in | 25.4 | Millimeters | mm |
| Feet | ft | 0.305 | Meters | m | |
| Yards | yd | 0.914 | Meters | m | |
| Miles | mi | 1.61 | Kilometers | km | |
| Area | Square Inches | in2 | 645.2 | Square Millimeters | mm2 |
| Square Feet | ft2 | 0.093 | Square Meters | m2 | |
| Square Yards | yd2 | 0.836 | Square Meters | m2 | |
| Acres | ac | 0.405 | Hectares | ha | |
| Square Miles | mi2 | 2.59 | Square Kilometers | km2 | |
| Volume | Fluid Ounces | fl oz | 29.57 | Milliliters | mL |
| Gallons | gal | 3.785 | Liters | L | |
| Cubic Feet | ft3 | 0.028 | Cubic Meters | m3 | |
| Cubic Yards | yd3 | 0.765 | Cubic Meters | m3 | |
| Mass | Ounces | oz | 28.35 | Grams | g |
| Pounds | lb | 0.454 | Kilograms | kg | |
| Short Tons (2000 lb) | T | 0.907 | Metric Ton | t | |
| Temperature | Fahrenheit | °F | (F-32) x 5 / 9 or (F-32) / 1.8 |
Celsius | °C |
| Illumination | Foot Candles | fc | 10.76 | Lux | lx |
| Foot Lamberts | fl | 3.426 | Candela | cd |
Metric Units to Standard Units Conversion Table
Below is a conversion table that converts metric units into standard units.
| Measurement Unit | Symbol | Multiplication Factor | Measurement Unit | Symbol | |
| Length | Millimeters | mm | 0.039 | Inches | in |
| Meters | m | 3.28 | Feet | ft | |
| Meters | m | 1.09 | Yards | yd | |
| Kilometers | km | 0.621 | Miles | mi | |
| Area | Square Millimeters | mm2 | 0.0016 | Square Inches | in2 |
| Square Meters | m2 | 10.764 | Square Feet | ft2 | |
| Square Meters | m2 | 1.195 | Square Yards | yd2 | |
| Hectares | ha | 2.47 | Acres | ac | |
| Square Kilometers | km2 | 0.386 | Square Miles | mi2 | |
| Volume | Milliliters | mL | 0.034 | Fluid Ounces | fl oz |
| Liters | L | 0.264 | Gallons | gal | |
| Cubic Meters | m3 | 35.314 | Cubic Feet | ft3 | |
| Cubic Meters | m3 | 1.307 | Cubic Yards | yd3 | |
| Mass | Grams | g | 0.035 | Ounces | oz |
| Kilograms | kg | 2.202 | Pounds | lb | |
| Metric Ton | t | 1.103 | Short Tons (2000 lb) | T | |
| Temperature | Celsius | °C | 1.8C + 32 | Fahrenheit | °F |
| Illumination | Lux | lx | 0.0929 | Foot Candles | fc |
| Candela | cd | 0.2919 | Foot Lamberts | fl |
The concept behind the Metric Conversion Table
The metric conversion table represents a standardized system of measure which is used globally. The metric system works because units are predefined, hence, a proper calculation is all that is needed for everyone to arrive at the same measurement irrespective of location/country.
The appeal of International System of Units
A standard measurement unit was originally introduced for the purpose of standardizing business/trade all over the world. Prior to this standardization, many measurement systems existed throughout the globe making it difficult for business/trade.
The benefit of such a unified system across all areas that required quantity calculation became evident it provided uniformity.
Basic principle behind the Metric system
Units have established prefixes. For this reasons, we automatically expect that units with milli, centi, deci, kilo and hecto in front to have a certain value. By convention, it is understood that the value of each metric unit moves up by the 10th power therefore, we know that – 10 millimeters equals 1 centimeter, 10 centimeters equate to 1 meter and 10 meters measures a kilometer.
Each non-standardized measurement system has a value that is equivalent to the metric system in order to allow conversion from one system to another. This is so because these non-standard systems still exist in the countries in which they originated, although most have adopted the metric system as their standard system of measurement.
The purpose behind the table
The metric table makes conversion easy by outlining and documenting how one system equates or relates to another. The table also ensures that all units of measurement corresponds to each other regardless of where it is being used. The average table shows the metric measurements side by side with the equivalent non-standard unit being converted.