Study the information in the tables below.
When you're ready, test your knowledge with these exercises:
classifying units as length, time, volume, weight/mass
practice with unit abbreviations
practice with unit names
practice with unit conversion information
one-step conversions
multi-step conversions
rate problems
| NAME OF UNIT | COMMON ABBREVIATION | CONVERSION INFORMATION |
|---|---|---|
| millimeter (metric) | mm | |
| centimeter (metric) | cm | 1 cm is about 0.4 in a centimeter is shorter than an inch |
| meter (metric) | m | 1 m is about 1.1 yd a meter is a little longer than a yard 1 m = 1000 mm 1 m = 100 cm |
| kilometer (metric) | km | 1 km is about 0.6 mi a kilometer is shorter than a mile a kilometer is a little more than half a mile 1 km = 1000 m |
| inch | in | 1 in is about 2.5 cm |
| foot | ft | 1 ft = 12 in |
| yard | yd | 1 yd = 36 in 1 yd = 3 ft |
| mile | mi | 1 mi is about 1.6 km a mile is longer than a kilometer a mile is a little more than one and a half kilometers 1 mi = 5,280 ft |
| NAME OF UNIT | COMMON ABBREVIATION | CONVERSION INFORMATION |
|---|---|---|
| second | sec | |
| minute | min | 1 min = 60 sec |
| hour | hr | 1 hr = 60 min |
| day | 1 day = 24 hr | |
| week | wk | 1 wk = 7 days |
| month | 1 month is about 30 days | |
| year | yr | 1 year is about 365 days 1 year is about 52 weeks |
| century | 1 century = 100 yr |
| NAME OF UNIT | COMMON ABBREVIATION | CONVERSION INFORMATION |
|---|---|---|
| liter (metric) | 1 liter is about 1.1 qt a liter is a little more than a quart 1 liter = 1000 ml |
|
| milliliter (metric) | ml | |
| gallon | gal | 1 gal = 4 qt |
| quart | qt | 1 qt = 4 cups |
| pint | pt | 1 pt = 2 cups |
| cup | 1 cup = 8 fl oz | |
| fluid ounce | fl oz | |
| tablespoon | tb | 1 tb = 3 tsp |
| teaspoon | tsp |
| NAME OF UNIT | COMMON ABBREVIATION | CONVERSION INFORMATION |
|---|---|---|
| kilogram (metric) | kg | 1 kg = 1000 g |
| gram (metric) | g | |
| ton | 1 ton = 2000 lb | |
| pound | lb | 1 lb = 16 oz |
| ounce | oz |