For example, let’s say that you want to convert 5. 9 kilograms to pounds. In the next few steps, we’ll do just this.
In the example from above, you can convert by multiplying 5. 9 by 2. 2. 5. 9 × 2. 2 = 12. 98 pounds. Don’t forget the “pounds” label. If you’re doing this calculation for schoolwork, you can lose points if you leave the label off. If you’re doing the calculation for something else, the person who reads your work may misunderstand your answer.
In the example above, if we use the more-accurate value, we get 5. 9 × 2. 2046 = 13. 00714 pounds. This is a minor difference, but if we’re aiming for very precise measurements, this may be the better choice. If you want to be even more accurate, consider using a conversion factor with more decimal places. At an extreme level of accuracy, one kilogram is equal to 2. 2046226218 pounds. [3] X Research source
In the example above, if we use the more-accurate value, we get 5. 9 × 2. 2046 = 13. 00714 pounds. This is a minor difference, but if we’re aiming for very precise measurements, this may be the better choice. If you want to be even more accurate, consider using a conversion factor with more decimal places. At an extreme level of accuracy, one kilogram is equal to 2. 2046226218 pounds. [3] X Research source
In the example from above, you can get from 12. 98 pounds back to the original kilogram measurement like this: 12. 98/2. 2 = 5. 9 kilograms. Don’t forget the label! Don’t mix and match your conversion factors — only divide by the number you originally multiplied by. For instance, since you got 13. 00714 pounds when you used the more accurate 2. 2046 conversion, you wouldn’t divide by 2. 2. This would give you 13. 00714/2. 2 = 5. 912 kilograms, which is slightly different from your starting 5. 9 kilograms.
To convert kilograms into this sort of pound and ounces measurement, start by doing the standard decimal conversion above. For instance, if you want to convert 7 kilograms to pounds and ounces, start by multiplying 7 × 2. 2 = 15. 4 pounds
For example, if you want to figure out how to write your 15. 4 pound answer above to pounds and ounces, you would get your number of ounces by dividing 0. 4/0. 0625 = 6. 4. This means that the “0. 4” in “15. 4 pounds” is equal to 6. 4 ounces.
In the example problem, we have 15 pounds (from our original 15. 4 pound measurement). We now know that the 0. 4 decimal is equal to 6. 4 ounces. This means our final measurement is 15 pounds, 6. 4 ounces.
In the example problem, you would convert back to kilograms like this: Start with 15 pounds, 6. 4 ounces. Multiply 6. 4 × 0. 0625 = 0. 4 pounds Add this to 15 to get 15. 4 pounds. Divide 15. 4/2. 2 to get 7 kilograms.
