| Distance | ||
|---|---|---|
| 1 inch | = 2.54 centimeters | = 25.4 millimeters |
| 1 foot | = 0.305 meter | = 30.48 centimeters |
| 1 yard | = 0.9144 meter | |
| 1 mile | = 1.61 kilometers | = 5,280 feet |
| 1 kilometer | = 1,000 meters | = 0.6214 mile |
| 1 meter | = 100 centimeters | = 1,000 millimeters |
| 1 meter | = 3.28 feet | |
| 1 centimeter | = 0.3937 inch | = 10 millimeters |
| 1 millimeter | = 0.039 inch | = 0.1 centimeter |
| 1 micron | = 10 meter | = 1 micrometer |
| Volume | ||
|---|---|---|
| 1 kilolitre | = 1,000 litres | = 1 cubic meter |
| 1 liter | = 1,000 millilitres | = 1,000 cc |
| 1 millilitre | = 1 cc (exactly 1.000027 cc) | |
| 1 fluid ounce | = 29.57 millilitres | |
| 1 US gallon | = 3.785 litres | |
| 1 imperial gallon | = 4.546 litres |
| Weight | ||
|---|---|---|
| 1 kilogram | = 1,000 grams | = 2.2 pounds |
| 1 gram | = 1,000 milligrams | = 1,000 milligrams |
| 1 milligram | = 1,000 micrograms | = 1/1,000 gram |
| 1 microgram | = 10^-6 grams | = 1/1,000 milligram |
| 1 nanogram | = 10^-9 grams | = 1/1,000 microgram |
| 1 pound | = 0.45 kilogram | = 16 ounces |
| 1 ounce | = 28.35 grams |